{"id":10463,"date":"2026-05-22T17:42:53","date_gmt":"2026-05-22T09:42:53","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/tw\/architecting-with-clarity-a-comprehensive-case-study-on-uml-building-blocks\/"},"modified":"2026-05-30T14:07:29","modified_gmt":"2026-05-30T06:07:29","slug":"architecting-with-clarity-a-comprehensive-case-study-on-uml-building-blocks","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/tw\/architecting-with-clarity-a-comprehensive-case-study-on-uml-building-blocks\/","title":{"rendered":"\u4ee5\u6e05\u6670\u6027\u9032\u884c\u67b6\u69cb\u8a2d\u8a08\uff1aUML \u69cb\u5efa\u6a21\u584a\u7684\u5168\u9762\u6848\u4f8b\u7814\u7a76"},"content":{"rendered":"<h2 data-nodeid=\"10018\">\u5f15\u8a00<\/h2>\n<p data-nodeid=\"10019\">\u73fe\u4ee3\u8edf\u9ad4\u7cfb\u7d71\u672c\u8cea\u4e0a\u975e\u5e38\u8907\u96dc\uff0c\u7531\u6578\u767e\u500b\u76f8\u4e92\u4f5c\u7528\u7684\u7d44\u4ef6\u3001\u4e26\u884c\u8655\u7406\u6d41\u7a0b\u548c\u8907\u96dc\u7684\u8cc7\u6599\u6d41\u7d44\u6210\u3002\u5f4c\u5408\u62bd\u8c61\u696d\u52d9\u9700\u6c42\u8207\u5177\u9ad4\u6280\u8853\u5be6\u73fe\u4e4b\u9593\u7684\u5dee\u8ddd\uff0c\u9700\u8981\u4e00\u7a2e\u6a19\u6e96\u5316\u4e14\u660e\u78ba\u7684\u6e9d\u901a\u5a92\u4ecb\u3002\u7d71\u4e00\u5efa\u6a21\u8a9e\u8a00\uff08UML\uff09\u6b63\u662f\u9019\u7a2e\u901a\u7528\u85cd\u5716\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u8996\u89ba\u5316\u7684\u8a5e\u5f59\uff0c\u8b93\u958b\u767c\u4eba\u54e1\u3001\u67b6\u69cb\u5e2b\u548c\u5229\u76ca\u76f8\u95dc\u8005\u80fd\u5920\u8de8\u9818\u57df\u5171\u4eab\u3002<\/p>\n<p data-nodeid=\"10020\">\u96d6\u7136\u5c0d UML \u8a9e\u6cd5\u7684\u7406\u8ad6\u77e5\u8b58\u5f88\u6709\u50f9\u503c\uff0c\u4f46\u771f\u6b63\u7684\u7cbe\u901a\u662f\u5728\u9019\u4e9b\u6982\u5ff5\u88ab\u61c9\u7528\u65bc\u4e00\u500b\u9023\u8cab\u4e14\u771f\u5be6\u7684\u5834\u666f\u6642\u624d\u6703\u986f\u73fe\u3002\u672c\u6848\u4f8b\u7814\u7a76\u5c55\u793a\u4e86 UML \u7684\u4e09\u500b\u57fa\u790e\u69cb\u5efa\u6a21\u584a\u2014\u2014<strong data-nodeid=\"10132\">\u4e8b\u7269<\/strong>,\u00a0<strong data-nodeid=\"10133\">\u95dc\u4fc2<\/strong>\uff0c\u4ee5\u53ca<strong data-nodeid=\"10134\">\u5716\u8868<\/strong>\u2014\u2014\u5982\u4f55\u76f8\u4e92\u7d50\u5408\uff0c\u4ee5\u5efa\u6a21\u5b8c\u6574\u7684\u8edf\u9ad4\u67b6\u69cb\u3002\u900f\u904e\u5c07\u6bcf\u500b UML \u5143\u7d20\u61c9\u7528\u65bc\u73fe\u4ee3\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u7684\u8a2d\u8a08\uff0c\u6211\u5011\u5c07\u62bd\u8c61\u7684\u5efa\u6a21\u539f\u5247\u8f49\u5316\u70ba\u53ef\u57f7\u884c\u3001\u53ef\u6295\u5165\u751f\u7522\u7684\u8996\u89ba\u5316\u6210\u679c\u3002<\/p>\n<p id=\"KqYoeiX\"><img alt=\"\" class=\"alignnone size-full wp-image-24786\" decoding=\"async\" height=\"648\" loading=\"lazy\" sizes=\"auto, (max-width: 1187px) 100vw, 1187px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac.png 1187w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac-300x164.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac-1030x562.png 1030w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac-768x419.png 768w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac-150x82.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10246416fac-400x218.png 400w\" width=\"1187\"\/><\/p>\n<hr data-nodeid=\"10021\"\/>\n<h2 data-nodeid=\"10022\">\u6848\u4f8b\u7814\u7a76\u80cc\u666f\uff1a\u300cShopSphere\u300d\u96fb\u5b50\u5546\u52d9\u5e73\u53f0<\/h2>\n<p data-nodeid=\"10023\"><strong data-nodeid=\"10144\">ShopSphere<\/strong>\u662f\u4e00\u500b\u53ef\u64f4\u5c55\u3001\u96f2\u539f\u751f\u7684\u7dda\u4e0a\u5e02\u5834\uff0c\u9023\u63a5\u8cb7\u5bb6\u3001\u7b2c\u4e09\u65b9\u8ce3\u5bb6\u548c\u7ba1\u7406\u4eba\u54e1\u3002\u7cfb\u7d71\u5fc5\u9808\u8655\u7406\u4f7f\u7528\u8005\u9a57\u8b49\u3001\u7522\u54c1\u76ee\u9304\u7ba1\u7406\u3001\u8cfc\u7269\u8eca\u64cd\u4f5c\u3001\u5b89\u5168\u652f\u4ed8\u8655\u7406\u3001\u8a02\u55ae\u5c65\u884c\u4ee5\u53ca\u5373\u6642\u5eab\u5b58\u8ffd\u8e64\u3002\u70ba\u78ba\u4fdd\u53ef\u7dad\u8b77\u6027\u548c\u5718\u968a\u9593\u6e05\u6670\u7684\u6e9d\u901a\uff0c\u67b6\u69cb\u5718\u968a\u5df2\u63a1\u7528 UML \u4f5c\u70ba\u5176\u4e3b\u8981\u7684\u5efa\u6a21\u6a19\u6e96\u3002<\/p>\n<hr data-nodeid=\"10024\"\/>\n<h2 data-nodeid=\"10025\">\u7b2c\u4e00\u90e8\u5206\uff1a\u4f7f\u7528 UML\u300c\u4e8b\u7269\u300d\u9032\u884c\u5efa\u6a21<\/h2>\n<p data-nodeid=\"10026\">\u4e8b\u7269\u662f\u4efb\u4f55 UML \u6a21\u578b\u4e2d\u7684\u7b2c\u4e00\u985e\u516c\u6c11\u3002\u5b83\u5011\u4ee3\u8868\u975c\u614b\u540d\u8a5e\u3001\u52d5\u614b\u52d5\u8a5e\u3001\u7d44\u7e54\u5bb9\u5668\u4ee5\u53ca\u89e3\u91cb\u6027\u8a3b\u91cb\uff0c\u69cb\u6210\u4e86 ShopSphere \u67b6\u69cb\u7684\u57fa\u790e\u3002<\/p>\n<h3 data-nodeid=\"10027\">1. \u7d50\u69cb\u6027\u4e8b\u7269\uff08\u975c\u614b\u540d\u8a5e\uff09<\/h3>\n<p data-nodeid=\"10028\">\u7d50\u69cb\u6027\u4e8b\u7269\u5b9a\u7fa9\u4e86\u7cfb\u7d71\u4e2d\u6301\u7e8c\u5b58\u5728\u7684\u5be6\u9ad4\u8207\u6982\u5ff5\u5143\u7d20\u3002<\/p>\n<p id=\"rpzTJSu\"><img alt=\"\" class=\"alignnone size-full wp-image-24787\" decoding=\"async\" height=\"376\" loading=\"lazy\" sizes=\"auto, (max-width: 722px) 100vw, 722px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10250aea4d6.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10250aea4d6.png 722w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10250aea4d6-300x156.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10250aea4d6-150x78.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10250aea4d6-400x208.png 400w\" width=\"722\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:JL7DQW8n4Bulx3iCNggqJo0Y5f7YeLHOYqSPar63IKOcYJyjVVVEhbfwcnc-V7-Pf8oII_1rzGIpY1jF2OAxkBW3teBnc1Ab5oY9m60tOhHWE1mvKiofhj1xFj-Uj2HDbc9o4VImtEijmUo2uUYfhZesc9QKEP30Trq1F2k-5QE0ply_H0pKxK8xbp99Vr1NFtNbeivRD0Jp1Lw3UdZ3J6Uytlcmv3sB-w8-1Yun3y5oqLY38MoOFM7iO0QFQfBwMJ0cDDbndDiXtCGLUs9dExsRwG-n90jXGoafOCLos6fi61ds7ZSis3ACwqgBQdk2tdHFvi0bzm0JV4xNZ_t1E8ydzSvoRQxHD2Gdfv56hPCJZUzPfCI5yglWSY-4jgr0p-LeDNAJsHpkfVpz1zmxUMTRsieZMuAfvs9R2PBrwwgfgmb5gt_-2m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:JL7DQbD15DvVkEymT6DAto2KKicYP246hj9bEPavRORCdHFEpAH64Ie4Z6JJXMvSMBgGs5KNqbQKjW_J95VVmdFJ2ExEd9_lRtP318wfT7dsH2q-dLKVl_qv_xAOV7quUIVr_6xwU_A-kXhFVrrNdyVBcvl5wMH-Uo-ZF0FdwBYqhwm_gg-hgzFbRBeycSr_JgiF5zNbMAxpJ3i8GRLIY5GYgpTvfjHM4Lck59PWtVyD3oMkten7DaJancQUlSqpwwK-18sgtO5HYJxkGSHZ6Atn8CKUiNsD3IWf-TXKXbBNuMPJTOaSWb-jQHZ4nDY833w0ZfPyspJL8xdi3icQ5T-ZwETia3jC6aEGXNtY_g5OLjkQd8CkCTG8EtcM0ce8g3OaWyMFxniAWdhPEcZrKFSfnNzuRJyKvSIZOkHrWJoqOcYxrZ74dRKJJhuZw4BteiS8fWv0scbWn70HIVVNaMWg1-G5JwqJUKOcEKdFaq7LSfHCJO5yy7I_oBDTz4Q--Iy0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n' \u555f\u7528\u985e\u5225\u3001\u7528\u4f8b\u8207\u7d44\u4ef6\u7684\u6df7\u5408\u4f7f\u7528\r\nallowmixing\r\n' \u7d50\u69cb\u6027\u4e8b\u7269\u7bc4\u4f8b\r\nclass Customer {\r\n  +String email\r\n  +String name\r\n  +register()\r\n}\r\ninterface IPaymentGateway {\r\n  +authorize(amount: double): boolean\r\n  +capture(transactionId: String): void\r\n}\r\nclass OrderProcessingWorkflow &lt;collaboration&gt;\r\nusecase \"\u7d50\u5e33\" as UC_Checkout\r\nclass InventorySyncService &lt;active&gt; {\r\n  +runPollingThread()\r\n  +updateStock()\r\n}\r\ncomponent PaymentModule\r\nnode CloudServer_AWS\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:JL7DQbD15DvVkEymT6DAto2KKicYP246hj9bEPavRORCdHFEpAH64Ie4Z6JJXMvSMBgGs5KNqbQKjW_J95VVmdFJ2ExEd9_lRtP318wfT7dsH2q-dLKVl_qv_xAOV7quUIVr_6xwU_A-kXhFVrrNdyVBcvl5wMH-Uo-ZF0FdwBYqhwm_gg-hgzFbRBeycSr_JgiF5zNbMAxpJ3i8GRLIY5GYgpTvfjHM4Lck59PWtVyD3oMkten7DaJancQUlSqpwwK-18sgtO5HYJxkGSHZ6Atn8CKUiNsD3IWf-TXKXbBNuMPJTOaSWb-jQHZ4nDY833w0ZfPyspJL8xdi3icQ5T-ZwETia3jC6aEGXNtY_g5OLjkQd8CkCTG8EtcM0ce8g3OaWyMFxniAWdhPEcZrKFSfnNzuRJyKvSIZOkHrWJoqOcYxrZ74dRKJJhuZw4BteiS8fWv0scbWn70HIVVNaMWg1-G5JwqJUKOcEKdFaq7LSfHCJO5yy7I_oBDTz4Q--Iy0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:JL7DQW8n4Bulx3iCNggqJo0Y5f7YeLHOYqSPar63IKOcYJyjVVVEhbfwcnc-V7-Pf8oII_1rzGIpY1jF2OAxkBW3teBnc1Ab5oY9m60tOhHWE1mvKiofhj1xFj-Uj2HDbc9o4VImtEijmUo2uUYfhZesc9QKEP30Trq1F2k-5QE0ply_H0pKxK8xbp99Vr1NFtNbeivRD0Jp1Lw3UdZ3J6Uytlcmv3sB-w8-1Yun3y5oqLY38MoOFM7iO0QFQfBwMJ0cDDbndDiXtCGLUs9dExsRwG-n90jXGoafOCLos6fi61ds7ZSis3ACwqgBQdk2tdHFvi0bzm0JV4xNZ_t1E8ydzSvoRQxHD2Gdfv56hPCJZUzPfCI5yglWSY-4jgr0p-LeDNAJsHpkfVpz1zmxUMTRsieZMuAfvs9R2PBrwwgfgmb5gt_-2m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<ul data-nodeid=\"10030\">\n<li data-nodeid=\"10031\">\n<p data-nodeid=\"10032\"><strong data-nodeid=\"10158\">\u985e\u5225<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10156\">Customer<\/code>\uff09\uff1a\u5b9a\u7fa9\u5177\u6709\u5c6c\u6027\u548c\u64cd\u4f5c\u7684\u7269\u4ef6\u85cd\u5716\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10033\">\n<p data-nodeid=\"10034\"><strong data-nodeid=\"10165\">\u4ecb\u9762<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10163\">IPaymentGateway<\/code>\uff09\uff1a\u6307\u5b9a\u5408\u7d04\uff0c\u800c\u4e0d\u5305\u542b\u5be6\u4f5c\u7d30\u7bc0\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10035\">\n<p data-nodeid=\"10036\"><strong data-nodeid=\"10172\">\u5354\u4f5c<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10170\">[\u8a02\u55ae\u8655\u7406\u5de5\u4f5c\u6d41\u7a0b]<\/code>\uff09\uff1a\u6a21\u64ec\u5354\u4f5c\u89d2\u8272\uff0c\u5171\u540c\u671d\u5411\u5171\u540c\u76ee\u6a19\u52aa\u529b\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10037\">\n<p data-nodeid=\"10038\"><strong data-nodeid=\"10179\">\u4f7f\u7528\u6848\u4f8b<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10177\">\u7d50\u5e33<\/code>\uff09\uff1a\u6355\u6349\u5916\u90e8\u53ef\u898b\u7684\u7cfb\u7d71\u884c\u70ba\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10039\">\n<p data-nodeid=\"10040\"><strong data-nodeid=\"10186\">\u4e3b\u52d5\u985e\u5225<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10184\">[\u5eab\u5b58\u540c\u6b65\u670d\u52d9]<\/code>\uff09\uff1a\u4ee3\u8868\u4e26\u884c\u8655\u7406\u6216\u57f7\u884c\u7dd2\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10041\">\n<p data-nodeid=\"10042\"><strong data-nodeid=\"10193\">\u7d44\u4ef6<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10191\">[\u4ed8\u6b3e\u6a21\u7d44]<\/code>\uff09\uff1a\u53ef\u90e8\u7f72\u3001\u53ef\u66f4\u63db\u7684\u5be6\u9ad4\u6a21\u7d44\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10043\">\n<p data-nodeid=\"10044\"><strong data-nodeid=\"10200\">\u7bc0\u9ede<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10198\">[\u96f2\u7aef\u4f3a\u670d\u5668_AWS]<\/code>\uff09\uff1a\u57f7\u884c\u6642\u671f\u7684\u904b\u7b97\u8cc7\u6e90\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"10045\">2. \u884c\u70ba\u4e8b\u7269\uff08\u52d5\u614b\u52d5\u8a5e\uff09<\/h3>\n<p data-nodeid=\"10046\">\u884c\u70ba\u4e8b\u7269\u6355\u6349\u7cfb\u7d71\u96a8\u6642\u9593\u6f14\u8b8a\u4ee5\u53ca\u5c0d\u523a\u6fc0\u7684\u56de\u61c9\u65b9\u5f0f\u3002<\/p>\n<p id=\"Tlvijau\"><img alt=\"\" class=\"alignnone size-full wp-image-24790\" decoding=\"async\" height=\"269\" loading=\"lazy\" sizes=\"auto, (max-width: 377px) 100vw, 377px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10259dcffb5.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10259dcffb5.png 377w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10259dcffb5-300x214.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10259dcffb5-150x107.png 150w\" width=\"377\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:PO_F2eCm38Vl1TyXU9ax-0A33N5us64W37OFRT0oJQMcOxxzucvbfq2-tvS_pIeO9SrJOGvmOw68LdnWgEwqhZWGT1yx8WzqB8oY4A5D6yN2BEfvwnTaWSSObiNpSDLUJdhSPcBfUF1CXVcvK5yo0qw0plKnk6IbAjiGNgLkooAgPAFKUUFa7GhjlD9ypkl_9LRBSvVW31AJdjCGE_tz2m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULILtYoQzBJxgdlztIyMD7rh77zarrBdlNFVh-davVhnV99BpetARpOlEV5fkql6bfvkPxsDx_eQ0SoGOBFErU-sDs5BFXazundQ_OztJFrsUG-e7QOFWLTEuHw1Ik5n9IKWABybDBa4WsbPxDtFD_OgwG9LWvL0LIER19GHrbYJcPAOacgCz3P6a2rADAwQCOd0nM5WJGes2gK59Mcyd8vfEQb07qB0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n' \u4e92\u52d5\uff08\u8a0a\u606f\u4ea4\u63db\uff09\r\n\u89d2\u8272 \u8cfc\u8cb7\u8005\r\n\u53c3\u8207\u8005 \u8cfc\u7269\u8eca\r\n\u53c3\u8207\u8005 \u4ed8\u6b3e\u5f15\u64ce\r\n\u8cfc\u8cb7\u8005 -&gt; \u8cfc\u7269\u8eca : addProduct(\"\u66f8\u7c4d\")\r\n\u8cfc\u7269\u8eca -&gt; \u4ed8\u6b3e\u5f15\u64ce : validateCart()\r\n\u4ed8\u6b3e\u5f15\u64ce --&gt; \u8cfc\u7269\u8eca : cartValid = true\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULILtYoQzBJxgdlztIyMD7rh77zarrBdlNFVh-davVhnV99BpetARpOlEV5fkql6bfvkPxsDx_eQ0SoGOBFErU-sDs5BFXazundQ_OztJFrsUG-e7QOFWLTEuHw1Ik5n9IKWABybDBa4WsbPxDtFD_OgwG9LWvL0LIER19GHrbYJcPAOacgCz3P6a2rADAwQCOd0nM5WJGes2gK59Mcyd8vfEQb07qB0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:PO_F2eCm38Vl1TyXU9ax-0A33N5us64W37OFRT0oJQMcOxxzucvbfq2-tvS_pIeO9SrJOGvmOw68LdnWgEwqhZWGT1yx8WzqB8oY4A5D6yN2BEfvwnTaWSSObiNpSDLUJdhSPcBfUF1CXVcvK5yo0qw0plKnk6IbAjiGNgLkooAgPAFKUUFa7GhjlD9ypkl_9LRBSvVW31AJdjCGE_tz2m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<ul data-nodeid=\"10048\">\n<li data-nodeid=\"10049\">\n<p data-nodeid=\"10050\"><strong data-nodeid=\"10211\">\u4e92\u52d5<\/strong>\uff1a\u8a0a\u606f\u5e8f\u5217\uff08<code data-backticks=\"1\" data-nodeid=\"10207\">validateCart()<\/code>,\u00a0<code data-backticks=\"1\" data-nodeid=\"10209\">cartValid = true<\/code>) \u5728\u7269\u4ef6\u4e4b\u9593\u4ea4\u63db\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10051\">\n<p data-nodeid=\"10052\"><strong data-nodeid=\"10222\">\u72c0\u614b\u6a5f<\/strong>: \u751f\u547d\u9031\u671f\u8f49\u63db\uff08<code data-backticks=\"1\" data-nodeid=\"10216\">\u5f85\u8655\u7406<\/code>\u00a0\u2192\u00a0<code data-backticks=\"1\" data-nodeid=\"10218\">\u8655\u7406\u4e2d<\/code>\u00a0\u2192\u00a0<code data-backticks=\"1\" data-nodeid=\"10220\">\u5df2\u51fa\u8ca8\/\u5df2\u53d6\u6d88<\/code>) \u7531\u4e8b\u4ef6\u89f8\u767c\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"10053\">3. \u7d44\u5408\u4e8b\u7269\uff08\u7d44\u7e54\u5bb9\u5668\uff09<\/h3>\n<p data-nodeid=\"10054\">\u7d44\u5408\u4e8b\u7269\u5c07\u8907\u96dc\u7684\u6a21\u578b\u5206\u89e3\u70ba\u53ef\u7ba1\u7406\u7684\u547d\u540d\u7a7a\u9593\u3002<\/p>\n<p id=\"tCgLjMh\"><img alt=\"\" class=\"alignnone size-full wp-image-24792\" decoding=\"async\" height=\"112\" loading=\"lazy\" sizes=\"auto, (max-width: 882px) 100vw, 882px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10261a6a3c1.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10261a6a3c1.png 882w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10261a6a3c1-300x38.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10261a6a3c1-768x98.png 768w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10261a6a3c1-150x19.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10261a6a3c1-400x51.png 400w\" width=\"882\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:NP31QW9138Rl0_CEmOkluR9Os4DfeNWg7i9CM8VE94iIxKBfktTLHEqj8NnVadzZZkh7LcDOGrUhV1kqCXSU8LKq8mFa34dQ94pi1iBW1mB3Hf2GJsWnu1cyOZ5CcBvm95ZrejHBQwI9Ll0J0roTyAQPzDuEV9AIA8RV1tXdfA_8IzsMjKzuVpINzcZeSYjy9fuTszb96Ul0JgEY5s6xcMuFmUU7QvcMGvafkUZ-t_Y5ydRkteVznRqXpajQVm00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULILtZQslXYnSQdSrOydT3pP4V3ywchd-veVhAZwzdsxKydT3pPk__vb1Kl5yvxsh7qHKVxywqjJtPlu-LApCd9By_DhCZCI-VbAaXCpavCJrLGUhPWnzFzpIzdxtuwjKr9ePgNIq4XEIUnk5ZXnOgcfzFM8VZFP-vvldG5BrSjacQ8JIyQMf-lM_Xy0gh-f-iMFUlOXgGVhEJfv8LmJQXcFLqoxMNpYcTJjm1z03CeFxSWFoyrhqGXEhYaABCWLU5bm-9dVKkVpbmHYoRlbfhYMg7W6E0P2pRL8JKl1HXM0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n' \u5141\u8a31\u5728\u540c\u4e00\u756b\u5e03\u4e0a\u6df7\u5408\u4f7f\u7528\u985e\u5225\u8207\u7d44\u4ef6\r\nallowmixing\r\npackage \"\u6838\u5fc3\u96fb\u5546\" {\r\n  class \u8a02\u55ae\r\n  class \u767c\u7968\r\n}\r\npackage \"\u4f7f\u7528\u8005\u7ba1\u7406\" {\r\n  class \u5ba2\u6236\r\n  class \u7ba1\u7406\u54e1\u4f7f\u7528\u8005\r\n}\r\npackage \"\u5916\u90e8\u6574\u5408\" {\r\n  component [Stripe \u9023\u63a5\u5668]\r\n  component [FedEx API]\r\n}\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULILtZQslXYnSQdSrOydT3pP4V3ywchd-veVhAZwzdsxKydT3pPk__vb1Kl5yvxsh7qHKVxywqjJtPlu-LApCd9By_DhCZCI-VbAaXCpavCJrLGUhPWnzFzpIzdxtuwjKr9ePgNIq4XEIUnk5ZXnOgcfzFM8VZFP-vvldG5BrSjacQ8JIyQMf-lM_Xy0gh-f-iMFUlOXgGVhEJfv8LmJQXcFLqoxMNpYcTJjm1z03CeFxSWFoyrhqGXEhYaABCWLU5bm-9dVKkVpbmHYoRlbfhYMg7W6E0P2pRL8JKl1HXM0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:NP31QW9138Rl0_CEmOkluR9Os4DfeNWg7i9CM8VE94iIxKBfktTLHEqj8NnVadzZZkh7LcDOGrUhV1kqCXSU8LKq8mFa34dQ94pi1iBW1mB3Hf2GJsWnu1cyOZ5CcBvm95ZrejHBQwI9Ll0J0roTyAQPzDuEV9AIA8RV1tXdfA_8IzsMjKzuVpINzcZeSYjy9fuTszb96Ul0JgEY5s6xcMuFmUU7QvcMGvafkUZ-t_Y5ydRkteVznRqXpajQVm00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<ul data-nodeid=\"10056\">\n<li data-nodeid=\"10057\">\n<p data-nodeid=\"10058\"><strong data-nodeid=\"10229\">\u5957\u4ef6<\/strong>: \u50c5\u70ba\u6982\u5ff5\u6027\u7684\u5bb9\u5668\uff0c\u5728\u958b\u767c\u671f\u9593\u7528\u4f86\u7d44\u7e54\u76f8\u95dc\u5143\u7d20\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"10059\">4. \u8a3b\u89e3\u4e8b\u7269\uff08\u89e3\u91cb\u6027\u8a3b\u89e3\uff09<\/h3>\n<p data-nodeid=\"10060\">\u8a3b\u89e3\u4e8b\u7269\u63d0\u4f9b\u6e05\u6670\u5ea6\u3001\u7d04\u675f\u689d\u4ef6\u8207\u958b\u767c\u8005\u6307\u5f15\u3002<\/p>\n<p id=\"TBrAEyH\"><img alt=\"\" class=\"alignnone size-full wp-image-24793\" decoding=\"async\" height=\"94\" loading=\"lazy\" sizes=\"auto, (max-width: 513px) 100vw, 513px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10264b8816c.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10264b8816c.png 513w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10264b8816c-300x55.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10264b8816c-150x27.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10264b8816c-400x73.png 400w\" width=\"513\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:JOzD2i9034Rt0tE7xBeGF82hAkuLFS6qZUt0D2dv0K6ykzFgmbq8xtl9rwebCPzB37r9gd2H0GLUCG3ipknTGJ2sL8upEzcslfja6g4cpJM6Tmp4XY1vd0puyLMivCar4rRfpGiU_ZqmknfaweiFkAAMdf1e09toigps3Xyi-3i29eaqMsRIZMPehi9zTLUssSU0DRj-4KDRnzhd0m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:JO_B2e9G68Jt1yux_FjUeXv5keCfv74LWHMceb8jBAmMRGeXR66RxZsC_dfSzGfPj6WtC3CVCsM52LscTaHAggAWAC238SuFqAC4e9Il_2nwu6K7J6Q2MEd8giI-3eQBv1H1qMQgGacV4abcTUYscoq6SkE7-KJH6wVRaEycQ1cls_8F1FZKyus9ZexJVHRekJ7Zff4FR1vTNpSdjLm-kkCwo6mjrMr-jzB9YXl7M7EuxsNJSN8AOyrDpZPQRgmDAQbBDVZCeAHSoEBK6m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\nclass \u8a02\u55ae {\r\n  +\u96d9\u7cbe\u5ea6 totalAmount\r\n  +\u5b57\u4e32 status\r\n}\r\nnote right of \u8a02\u55ae\r\n  \u5546\u696d\u898f\u5247\uff1atotalAmount \u5fc5\u9808\u5305\u542b\u7a05\u91d1\u8207\u904b\u8cbb\uff0c\u624d\u80fd\u5728\u72c0\u614b\u8f49\u63db\u81f3\u300c\u8655\u7406\u4e2d\u300d\u4e4b\u524d\u3002\r\nend note\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:JO_B2e9G68Jt1yux_FjUeXv5keCfv74LWHMceb8jBAmMRGeXR66RxZsC_dfSzGfPj6WtC3CVCsM52LscTaHAggAWAC238SuFqAC4e9Il_2nwu6K7J6Q2MEd8giI-3eQBv1H1qMQgGacV4abcTUYscoq6SkE7-KJH6wVRaEycQ1cls_8F1FZKyus9ZexJVHRekJ7Zff4FR1vTNpSdjLm-kkCwo6mjrMr-jzB9YXl7M7EuxsNJSN8AOyrDpZPQRgmDAQbBDVZCeAHSoEBK6m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:JOzD2i9034Rt0tE7xBeGF82hAkuLFS6qZUt0D2dv0K6ykzFgmbq8xtl9rwebCPzB37r9gd2H0GLUCG3ipknTGJ2sL8upEzcslfja6g4cpJM6Tmp4XY1vd0puyLMivCar4rRfpGiU_ZqmknfaweiFkAAMdf1e09toigps3Xyi-3i29eaqMsRIZMPehi9zTLUssSU0DRj-4KDRnzhd0m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<ul data-nodeid=\"10062\">\n<li data-nodeid=\"10063\">\n<p data-nodeid=\"10064\"><strong data-nodeid=\"10236\">\u8a3b\u89e3<\/strong>: \u9644\u52a0\u65bc\u5143\u7d20\u4e0a\u7684\u6298\u89d2\u6587\u5b57\u5340\u584a\uff0c\u7528\u65bc\u7d04\u675f\u3001\u8a3b\u89e3\u6216\u6587\u4ef6\u8aaa\u660e\u3002<\/p>\n<\/li>\n<\/ul>\n<hr data-nodeid=\"10065\"\/>\n<h2 data-nodeid=\"10066\">\u7b2c\u4e8c\u90e8\u5206\uff1a\u4f7f\u7528 UML \u95dc\u4fc2\u9023\u7d50\u5143\u7d20<\/h2>\n<p data-nodeid=\"10067\">\u95dc\u4fc2\u5b9a\u7fa9\u4e86\u8a9e\u7fa9\u8207\u7d50\u69cb\u4e0a\u7684\u4f9d\u8cf4\u95dc\u4fc2\uff0c\u5c07\u4e8b\u7269\u9023\u7d50\u5728\u4e00\u8d77\u3002ShopSphere \u7684\u67b6\u69cb\u4f9d\u8cf4\u65bc\u56db\u7a2e\u4e3b\u8981\u7684\u95dc\u4fc2\u69cb\u5efa\u6a21\u7d44\uff1a<\/p>\n<p id=\"PLWTJej\"><img alt=\"\" class=\"alignnone size-full wp-image-24794\" decoding=\"async\" height=\"296\" loading=\"lazy\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1026822658b.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1026822658b.png 498w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1026822658b-300x178.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1026822658b-150x89.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1026822658b-400x238.png 400w\" width=\"498\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:RPB1QW8n48Rl2_iEmnvQQzbGQqyYYw9GUgfq-m8X6NS7iab8OiNIX-_ehY3gCNyot_ppJnOnoP1sdScpH_X28nCv6rloy7tm684irAtpjMynO9uf8sCyAPvii-BIixQHXmvjgZ7yaEANP1E6hLG87yFL9ZY5CRfmBba5r9GOec-kk6GZpOLyj3SHi4QFLgDL1nYjPMnHWo6BJtbswGc4gAuCmGpcyrt4M5Kzx5N0aj6AJXF30ooR9c3JdqQrCzIZOK-f1KsoSrPpdzKk9jTXW69ImBWieNWHObp0Pz0ipi0RdZd2q6KgE5Hfw7VW3fwVeNN6k3t84Dp-IBsDWeVug-w5T-I-2NX7Y-42tLk-8Lyb2MN9r7ljPhnhNZAb2ChPBJLvjk2i-Mly0m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:RP7BJi9G443tJVeFasvCC6r4NHdIi7L7mXSqM8C9hxHrOU92y5L48Wj4Mv482rCIMs8mYbBip_Jstgxu1IyWn0UxoKpcp9cPkAf9YhQVpR3C2YJJ-KAoa9OL6Vo1ZSsJyARfUwMmtKAj2ikaCfAg0kcxkDmbmujv8gZt_E5jqAoYYi4oUpbDLdQbb0pR2UaWA-UqX99FoQgQL-ODljV6TGjLsyIunhKpP5Zp2kr8I1duaPzeHGNmF-z9_sMcCtPrOjpXDtFibbbceGE28FvoWIs8nVoHHsU9ueoqBW1ba6AFwEUaQAAQJc6ezqXXGSqEJwlawXcDEbCmSZg1_WfSb8C8pmEt9WWH3eXLGWs7elr1PH9yWpS4e1X_r5p8mIhWxWVoZh5ZXm_s5Fb_SIfzA2wxr0IwIVSU717z2Lqs5fxBk7_F1ZnFgKkcRG5-TuEoHomREIRBnENS3ltz5m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10068\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n' ShopSphere \u4e2d\u7684\u95dc\u4fc2\u985e\u578b\r\nclass \u8cfc\u7269\u8eca\r\nclass \u652f\u4ed8\u670d\u52d9\r\ninterface IPaymentProcessor\r\nclass \u4fe1\u7528\u5361\u8655\u7406\u5668\r\nclass PayPal \u8655\u7406\u5668\r\n\r\n' 1. \u4f9d\u8cf4\u95dc\u4fc2\uff08\u865b\u7dda\uff09\r\n\u8cfc\u7269\u8eca ..&gt; \u652f\u4ed8\u670d\u52d9 : &lt;&lt;\u4f7f\u7528&gt;&gt;\r\n\r\n' 2. \u95dc\u806f\u8207\u805a\u5408\uff08\u5be6\u7dda\u642d\u914d\u83f1\u5f62\uff09\r\n\u5ba2\u6236 \"1\" *-- \"0..*\" \u8a02\u55ae : \u4e0b\u55ae &gt;\r\n\r\n' 3. \u5be6\u4f5c\uff08\u865b\u7dda + \u7a7a\u5fc3\u7bad\u982d\uff09\r\n\u4fe1\u7528\u5361\u8655\u7406\u5668 ..|&gt; IPaymentProcessor\r\n\r\n' 4. \u4e00\u822c\u5316\uff08\u5be6\u7dda + \u7a7a\u5fc3\u7bad\u982d\uff09\r\nPayPal \u8655\u7406\u5668 --|&gt; \u4fe1\u7528\u5361\u8655\u7406\u5668 : \u7e7c\u627f\u8a2d\u5b9a\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:RP7BJi9G443tJVeFasvCC6r4NHdIi7L7mXSqM8C9hxHrOU92y5L48Wj4Mv482rCIMs8mYbBip_Jstgxu1IyWn0UxoKpcp9cPkAf9YhQVpR3C2YJJ-KAoa9OL6Vo1ZSsJyARfUwMmtKAj2ikaCfAg0kcxkDmbmujv8gZt_E5jqAoYYi4oUpbDLdQbb0pR2UaWA-UqX99FoQgQL-ODljV6TGjLsyIunhKpP5Zp2kr8I1duaPzeHGNmF-z9_sMcCtPrOjpXDtFibbbceGE28FvoWIs8nVoHHsU9ueoqBW1ba6AFwEUaQAAQJc6ezqXXGSqEJwlawXcDEbCmSZg1_WfSb8C8pmEt9WWH3eXLGWs7elr1PH9yWpS4e1X_r5p8mIhWxWVoZh5ZXm_s5Fb_SIfzA2wxr0IwIVSU717z2Lqs5fxBk7_F1ZnFgKkcRG5-TuEoHomREIRBnENS3ltz5m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:RPB1QW8n48Rl2_iEmnvQQzbGQqyYYw9GUgfq-m8X6NS7iab8OiNIX-_ehY3gCNyot_ppJnOnoP1sdScpH_X28nCv6rloy7tm684irAtpjMynO9uf8sCyAPvii-BIixQHXmvjgZ7yaEANP1E6hLG87yFL9ZY5CRfmBba5r9GOec-kk6GZpOLyj3SHi4QFLgDL1nYjPMnHWo6BJtbswGc4gAuCmGpcyrt4M5Kzx5N0aj6AJXF30ooR9c3JdqQrCzIZOK-f1KsoSrPpdzKk9jTXW69ImBWieNWHObp0Pz0ipi0RdZd2q6KgE5Hfw7VW3fwVeNN6k3t84Dp-IBsDWeVug-w5T-I-2NX7Y-42tLk-8Lyb2MN9r7ljPhnhNZAb2ChPBJLvjk2i-Mly0m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<ul data-nodeid=\"10069\">\n<li data-nodeid=\"10070\">\n<p data-nodeid=\"10071\"><strong data-nodeid=\"10249\">\u4f9d\u8cf4<\/strong>: \u67d0\u9805\u8b8a\u66f4\u53ef\u80fd\u5f71\u97ff<code data-backticks=\"1\" data-nodeid=\"10245\">\u4ed8\u6b3e\u670d\u52d9<\/code>\u53ef\u80fd\u5f71\u97ff<code data-backticks=\"1\" data-nodeid=\"10247\">\u8cfc\u7269\u8eca<\/code>.<\/p>\n<\/li>\n<li data-nodeid=\"10072\">\n<p data-nodeid=\"10073\"><strong data-nodeid=\"10262\">\u95dc\u806f\/\u805a\u5408<\/strong>:\u00a0<code data-backticks=\"1\" data-nodeid=\"10254\">\u5ba2\u6236<\/code>\u8207\u2026\u7dad\u6301\u7d50\u69cb\u6027\u7684\u300c\u6574\u9ad4\/\u90e8\u5206\u300d\u9023\u7d50<code data-backticks=\"1\" data-nodeid=\"10260\">\u8a02\u55ae<\/code>.<\/p>\n<\/li>\n<li data-nodeid=\"10074\">\n<p data-nodeid=\"10075\"><strong data-nodeid=\"10271\">\u5be6\u73fe<\/strong>:\u00a0<code data-backticks=\"1\" data-nodeid=\"10267\">\u4fe1\u7528\u5361\u8655\u7406\u5668<\/code>\u78ba\u4fdd\u9075\u5b88\u7531\u2026\u6240\u6307\u5b9a\u7684\u5408\u7d04<code data-backticks=\"1\" data-nodeid=\"10269\">IPaymentProcessor<\/code>.<\/p>\n<\/li>\n<li data-nodeid=\"10076\">\n<p data-nodeid=\"10077\"><strong data-nodeid=\"10280\">\u6cdb\u5316<\/strong>:\u00a0<code data-backticks=\"1\" data-nodeid=\"10276\">PayPal\u8655\u7406\u5668<\/code>\u5c08\u5316\u70ba<code data-backticks=\"1\" data-nodeid=\"10278\">\u4fe1\u7528\u5361\u8655\u7406\u5668<\/code>\uff0c\u7e7c\u627f\u5176\u7d50\u69cb\u8207\u884c\u70ba\u3002<\/p>\n<\/li>\n<\/ul>\n<hr data-nodeid=\"10078\"\/>\n<h2 data-nodeid=\"10079\">\u7b2c\u4e09\u90e8\u5206\uff1a\u4f7f\u7528 UML \u5716\u8868\u5448\u73fe\u67b6\u69cb<\/h2>\n<p data-nodeid=\"10080\">\u5716\u8868\u662f\u5c07\u4e8b\u7269\u8207\u95dc\u4fc2\u5206\u7d44\u70ba\u5229\u5bb3\u95dc\u4fc2\u4eba\u7279\u5b9a\u8996\u5716\u7684\u5716\u5f62\u6295\u5f71\u3002\u4ee5\u4e0b\u662f ShopSphere \u7684\u5b8c\u6574\u5716\u8868\u5be6\u4f5c\uff0c\u4f9d\u7d50\u69cb\u8207\u884c\u70ba\u89c0\u9ede\u5206\u985e\u3002<\/p>\n<h3 data-nodeid=\"10081\">\u7d50\u69cb\u5716<\/h3>\n<p data-nodeid=\"10082\">\u6355\u6349\u975c\u614b\u67b6\u69cb\u8207\u5be6\u969b\u90e8\u7f72\u3002<\/p>\n<h4 data-nodeid=\"10083\">\u985e\u5225\u5716<\/h4>\n<p data-nodeid=\"10084\">\u986f\u793a\u7cfb\u7d71\u985e\u5225\u3001\u4ecb\u9762\u53ca\u5176\u975c\u614b\u95dc\u4fc2\u3002<\/p>\n<p id=\"CIPWwrn\"><img alt=\"\" class=\"alignnone size-full wp-image-24795\" decoding=\"async\" height=\"202\" loading=\"lazy\" sizes=\"auto, (max-width: 291px) 100vw, 291px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1027ee4af39.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1027ee4af39.png 291w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1027ee4af39-150x104.png 150w\" width=\"291\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:LSzD2i8m40NWVI1t6BBoXmQzG2dKZIi5Jp0qemJoKoRJXQXtrsgjk7iC7uytJH5a6MBGgWjO2hH3aHo9uQOLmFeaxDC5AA8FeDL3goyyi9lL3eKWZuTtcfnFGdp6Zc1_n6ka91FlENTKocBvtzWoEIyjijFgby7QUpqtZ7gUQBO6gge6ix5sPJwBj6eekTT3Jm00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:LSzD2i8m40NWVI1t6BBoXmQzG2dKZIi5Jp0qemJoKoRJXQXtrsgjk7iC7uytJH5a6MBGgWjO2hH3aHo9uQOLmFeaxDC5AA8FeDL3goyyi9lL3eKWZuTtcfnFGdp6Zc1_n6ka91FlENTKocBvtzWoEIyjijFgby7QUpqtZ7gUQBO6gge6ix5sPJwBj6eekTT3Jm00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10085\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\nclass Customer {\r\n  +String email \r\n}\r\n\r\nclass Order {\r\n  +Date orderDate \r\n}\r\n\r\ninterface IPayment {\r\n  +process() \r\n}\r\n\r\nclass CreditCard\r\nCreditCard ..|&gt; IPayment\r\n\r\nCustomer \"1\" --&gt; \"0..*\" Order\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:LSzD2i8m40NWVI1t6BBoXmQzG2dKZIi5Jp0qemJoKoRJXQXtrsgjk7iC7uytJH5a6MBGgWjO2hH3aHo9uQOLmFeaxDC5AA8FeDL3goyyi9lL3eKWZuTtcfnFGdp6Zc1_n6ka91FlENTKocBvtzWoEIyjijFgby7QUpqtZ7gUQBO6gge6ix5sPJwBj6eekTT3Jm00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:LSzD2i8m40NWVI1t6BBoXmQzG2dKZIi5Jp0qemJoKoRJXQXtrsgjk7iC7uytJH5a6MBGgWjO2hH3aHo9uQOLmFeaxDC5AA8FeDL3goyyi9lL3eKWZuTtcfnFGdp6Zc1_n6ka91FlENTKocBvtzWoEIyjijFgby7QUpqtZ7gUQBO6gge6ix5sPJwBj6eekTT3Jm00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10086\">\u7269\u4ef6\u5716<\/h4>\n<p data-nodeid=\"10087\">\u4ee3\u8868\u57f7\u884c\u6642\u5be6\u4f8b\u5316\u7269\u4ef6\u7684\u5feb\u7167\u3002<\/p>\n<p id=\"EjFMVwR\"><img alt=\"\" class=\"alignnone size-full wp-image-24796\" decoding=\"async\" height=\"162\" loading=\"lazy\" sizes=\"auto, (max-width: 139px) 100vw, 139px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10283717380.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10283717380.png 139w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10283717380-129x150.png 129w\" width=\"139\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAJyfAJIvHKChApyXpACx8Bz1BpizLKaWiLaWsHCZw5wMa5Yae6neOcO3bye5ooOOAkhfsGAQ2bK91Jc9oQh627I-NGsfU2j1W0000\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAJyfAJIvHKChApyXpACx8Bz1BpizLKaWiLaWsHCZw5wMa5Yae6neOcO3bye5ooOOAkhfsGAQ2bK91Jc9oQh627I-NGsfU2j1W0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10088\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\nobject \"john@shop.com\" as c1\r\nobject \"Order #1024\" as o1\r\nc1 --&gt; o1 : places &gt;\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAJyfAJIvHKChApyXpACx8Bz1BpizLKaWiLaWsHCZw5wMa5Yae6neOcO3bye5ooOOAkhfsGAQ2bK91Jc9oQh627I-NGsfU2j1W0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAJyfAJIvHKChApyXpACx8Bz1BpizLKaWiLaWsHCZw5wMa5Yae6neOcO3bye5ooOOAkhfsGAQ2bK91Jc9oQh627I-NGsfU2j1W0000\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10089\">\u5143\u4ef6\u5716<\/h4>\n<p data-nodeid=\"10090\">\u8aaa\u660e\u6a21\u7d44\u5316\u4f9d\u8cf4\u95dc\u4fc2\u8207\u4ecb\u9762\u3002<\/p>\n<p id=\"zJkFkHt\"><img alt=\"\" class=\"alignnone size-full wp-image-24797\" decoding=\"async\" height=\"271\" loading=\"lazy\" sizes=\"auto, (max-width: 144px) 100vw, 144px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102848bf268.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102848bf268.png 144w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102848bf268-80x150.png 80w\" width=\"144\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULApiyjoCzBpIjHY0vFJN8iA8X54VClIaaj2aujAijCJaMLSN42yc5w57HrxJ0Ke_8XIi2w75BpKe2M0m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULApiyjoCzBpIjHY0vFJN8iA8X54VClIaaj2aujAijCJaMLSN42yc5w57HrxJ0Ke_8XIi2w75BpKe2M0m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10091\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\ncomponent [WebApp]\r\ncomponent [OrderService]\r\ncomponent [DB]\r\n[WebApp] --&gt; [OrderService]\r\n[OrderService] --&gt; [DB]\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULApiyjoCzBpIjHY0vFJN8iA8X54VClIaaj2aujAijCJaMLSN42yc5w57HrxJ0Ke_8XIi2w75BpKe2M0m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULApiyjoCzBpIjHY0vFJN8iA8X54VClIaaj2aujAijCJaMLSN42yc5w57HrxJ0Ke_8XIi2w75BpKe2M0m00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10092\">\u90e8\u7f72\u5716<\/h4>\n<p data-nodeid=\"10093\">\u5c07\u8edf\u9ad4\u5143\u4ef6\u5c0d\u61c9\u81f3\u5be6\u969b\u7684\u57f7\u884c\u6642\u7bc0\u9ede\u3002<\/p>\n<p id=\"bTiZzYf\"><img alt=\"\" class=\"alignnone size-full wp-image-24798\" decoding=\"async\" height=\"323\" loading=\"lazy\" sizes=\"auto, (max-width: 266px) 100vw, 266px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1028585dd88.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1028585dd88.png 266w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1028585dd88-247x300.png 247w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a1028585dd88-124x150.png 124w\" width=\"266\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAoqz9LL3ooKzCSKhCISnBJYrIKgZcvL9GW4Wu5XG4fnQLfHR56nX29HGKalDp2_BpKlDA5AB3KvE0Ic91uhMyNBKmyrmIInAJ4ejJdNDAYqlWHYBf2yWlBaalIWqEz8a5QuCPfA2hQuScwv2Qbm9qAW00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAoqz9LL3ooKzCSKhCISnBJYrIKgZcvL9GW4Wu5XG4fnQLfHR56nX29HGKalDp2_BpKlDA5AB3KvE0Ic91uhMyNBKmyrmIInAJ4ejJdNDAYqlWHYBf2yWlBaalIWqEz8a5QuCPfA2hQuScwv2Qbm9qAW00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10094\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\nnode \"LoadBalancer\" {\r\n  node \"AppServer_01\" {\r\n    component [WebApp]\r\n  }\r\n}\r\nnode \"DatabaseCluster\" {\r\n  component [PostgreSQL]\r\n}\r\n[WebApp] --&gt; [PostgreSQL]\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAoqz9LL3ooKzCSKhCISnBJYrIKgZcvL9GW4Wu5XG4fnQLfHR56nX29HGKalDp2_BpKlDA5AB3KvE0Ic91uhMyNBKmyrmIInAJ4ejJdNDAYqlWHYBf2yWlBaalIWqEz8a5QuCPfA2hQuScwv2Qbm9qAW00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAoqz9LL3ooKzCSKhCISnBJYrIKgZcvL9GW4Wu5XG4fnQLfHR56nX29HGKalDp2_BpKlDA5AB3KvE0Ic91uhMyNBKmyrmIInAJ4ejJdNDAYqlWHYBf2yWlBaalIWqEz8a5QuCPfA2hQuScwv2Qbm9qAW00\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3 data-nodeid=\"10095\">\u884c\u70ba\u5716<\/h3>\n<p data-nodeid=\"10096\">\u6355\u6349\u52d5\u614b\u5de5\u4f5c\u6d41\u7a0b\u3001\u4e92\u52d5\u8207\u63a7\u5236\u6d41\u7a0b\u3002<\/p>\n<h4 data-nodeid=\"10097\">\u7528\u4f8b\u5716<\/h4>\n<p data-nodeid=\"10098\">\u5c07\u53c3\u8207\u8005\u5c0d\u61c9\u81f3\u7cfb\u7d71\u529f\u80fd\u3002<\/p>\n<p id=\"BXyoaMj\"><img alt=\"\" class=\"alignnone size-full wp-image-24799\" decoding=\"async\" height=\"197\" loading=\"lazy\" sizes=\"auto, (max-width: 296px) 100vw, 296px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10287443d64.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10287443d64.png 296w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a10287443d64-150x100.png 150w\" width=\"296\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:JOv12W8n34NtXTuXp7uMUW0PxSg5ImyGsbWBRGDfEkBjBJe3hiBdl__8qXH5UydMP7eeA8Ea-5G8ISXhuceDUcK1rvjo8TdpEPGqojx8OoEOBiAlSHqgPeuJO8ExE_m1DwmO2QvrfJe4xmqvMhEhOPvFlz5NliK1B5J3-F43\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAIKqhKIZ9LoZAJCyeKKZ9B4fDBidCp-FbIamkoIzIS2ujBidFJIs2yHrJSZE1agN5gSc9nQaAIiyR-byis_jyzhgNFIrA2ed52g7EXiZIwnO-dz3sTDVgfsjdGAMDUBbWXYhewjf1D82DXNA12XnIyrA0hWC0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10099\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\nleft to right direction\r\nactor Customer\r\nactor Admin\r\nusecase \"\u700f\u89bd\u76ee\u9304\" as UC1\r\nusecase \"\u7ba1\u7406\u5eab\u5b58\" as UC2\r\nCustomer --&gt; UC1\r\nAdmin --&gt; UC2\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAIKqhKIZ9LoZAJCyeKKZ9B4fDBidCp-FbIamkoIzIS2ujBidFJIs2yHrJSZE1agN5gSc9nQaAIiyR-byis_jyzhgNFIrA2ed52g7EXiZIwnO-dz3sTDVgfsjdGAMDUBbWXYhewjf1D82DXNA12XnIyrA0hWC0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:JOv12W8n34NtXTuXp7uMUW0PxSg5ImyGsbWBRGDfEkBjBJe3hiBdl__8qXH5UydMP7eeA8Ea-5G8ISXhuceDUcK1rvjo8TdpEPGqojx8OoEOBiAlSHqgPeuJO8ExE_m1DwmO2QvrfJe4xmqvMhEhOPvFlz5NliK1B5J3-F43\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10100\">\u5e8f\u5217\u5716<\/h4>\n<p data-nodeid=\"10101\">\u5f37\u8abf\u6309\u6642\u9593\u9806\u5e8f\u7684\u6d88\u606f\u4ea4\u63db\u3002<\/p>\n<p id=\"nVpYHSx\"><img alt=\"\" class=\"alignnone size-full wp-image-24800\" decoding=\"async\" height=\"298\" loading=\"lazy\" sizes=\"auto, (max-width: 275px) 100vw, 275px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102885eba51.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102885eba51.png 275w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102885eba51-138x150.png 138w\" width=\"275\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:LOvB2W8n343tXTuXIrtC1Lp855Up4yG3r3HYcNw6DkFvJGg2xi9xUIHpPzzupyaQZrmRt3irQpQ14UFc2yD5vd_YheirkWZJUMWuGQT4o0jJFXoj6L2aR8h35-5wuughEcNJJwZSlNrC_f7ecueV1oIkvHbRTY5eF5C9ykq7\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwiNpIYyvD2a_sxdy-PSMBXbPUhgVzpIywse5CXHURzpplNFbYTnUoe6E09oyNNBc2hXr2cOALGd5gJcfoYMT9Qgw69j1mk0nG6L0ZK45oHcfoTd19Vd8sI058J1VT292aOrbYPavYKaugYY50bGYRWMRbvwLb5kKwfgI0p798pKi1UWa0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10102\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n\u89d2\u8272 \u4f7f\u7528\u8005\r\n\u53c3\u8207\u8005 \u8cfc\u7269\u8eca\r\n\u53c3\u8207\u8005 API\r\n\u4f7f\u7528\u8005 -&gt; \u8cfc\u7269\u8eca : selectItem()\r\n\u8cfc\u7269\u8eca -&gt; API : checkStock()\r\nAPI --&gt; \u8cfc\u7269\u8eca : stockAvailable\r\n\u8cfc\u7269\u8eca --&gt; \u4f7f\u7528\u8005 : confirmAdd()\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwiNpIYyvD2a_sxdy-PSMBXbPUhgVzpIywse5CXHURzpplNFbYTnUoe6E09oyNNBc2hXr2cOALGd5gJcfoYMT9Qgw69j1mk0nG6L0ZK45oHcfoTd19Vd8sI058J1VT292aOrbYPavYKaugYY50bGYRWMRbvwLb5kKwfgI0p798pKi1UWa0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:LOvB2W8n343tXTuXIrtC1Lp855Up4yG3r3HYcNw6DkFvJGg2xi9xUIHpPzzupyaQZrmRt3irQpQ14UFc2yD5vd_YheirkWZJUMWuGQT4o0jJFXoj6L2aR8h35-5wuughEcNJJwZSlNrC_f7ecueV1oIkvHbRTY5eF5C9ykq7\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10103\">\u901a\u8a0a\u5716<\/h4>\n<p data-nodeid=\"10104\">\u8457\u91cd\u65bc\u50b3\u905e\u8a0a\u606f\u7684\u7269\u4ef6\u4e4b\u7d50\u69cb\u6027\u7d44\u7e54\u3002<\/p>\n<p id=\"QDorveF\"><img alt=\"\" class=\"alignnone size-full wp-image-24801\" decoding=\"async\" height=\"58\" loading=\"lazy\" sizes=\"auto, (max-width: 413px) 100vw, 413px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102899ccc4f.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102899ccc4f.png 413w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102899ccc4f-300x42.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102899ccc4f-150x21.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a102899ccc4f-400x56.png 400w\" width=\"413\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAJyfAJIvH22rEBO9pd86IS8vZW2Sl5qXQGTSEBADWfM1efL2ScWEKzIn9pTNGvEK2YmFbWOg1qaPM2iaPgSdPmINvoTaWQP2mBaAxiPL2KMf9QL5UK6fnQKu9I8L3QbuAq3q0\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwthdooUvj2a_sxdy-PSMBXbQuo8lDUu2i5xkxu2AE0PwyN7252hfs23KALWg6LWh5gJcfoIMU9Qcv6fgyN0X9e4gWNg0Q8ok5v8pKvEpWalpaR90QaB0kca76LWf5gIMbHNb1gSMbEIKWPGwfUIb0rm80\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10105\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n\u7269\u4ef6 \u4f7f\u7528\u8005\r\n\u7269\u4ef6 \u8cfc\u7269\u8eca\r\n\u7269\u4ef6 API\r\n\u4f7f\u7528\u8005 -&gt; \u8cfc\u7269\u8eca : 1: selectItem()\r\n\u8cfc\u7269\u8eca -&gt; API : 2: checkStock()\r\nAPI --&gt; \u8cfc\u7269\u8eca : 3: returnResult()\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwthdooUvj2a_sxdy-PSMBXbQuo8lDUu2i5xkxu2AE0PwyN7252hfs23KALWg6LWh5gJcfoIMU9Qcv6fgyN0X9e4gWNg0Q8ok5v8pKvEpWalpaR90QaB0kca76LWf5gIMbHNb1gSMbEIKWPGwfUIb0rm80\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUNAJyfAJIvH22rEBO9pd86IS8vZW2Sl5qXQGTSEBADWfM1efL2ScWEKzIn9pTNGvEK2YmFbWOg1qaPM2iaPgSdPmINvoTaWQP2mBaAxiPL2KMf9QL5UK6fnQKu9I8L3QbuAq3q0\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10106\">\u72c0\u614b\u5716<\/h4>\n<p data-nodeid=\"10107\">\u986f\u793a\u53cd\u61c9\u5f0f\u7684\u72c0\u614b\u8f49\u63db\u3002<\/p>\n<p id=\"WhYMAwj\"><img alt=\"\" class=\"alignnone size-full wp-image-24818\" decoding=\"async\" height=\"454\" loading=\"lazy\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cda3dc64.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cda3dc64.png 317w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cda3dc64-209x300.png 209w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cda3dc64-105x150.png 105w\" width=\"317\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUMArefLqDMrK_0lICtZvGAH2a2USqv-SMgAWfL2SaPgSdP-QOc69YyNL12aEZWZiw00hA0WiJ8tDQ_4EISriIWr1QGC9WTIvvAQarcM2fJWvO8pmH90Qtcv75BpKe2E0000\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUMArefLqDMrKtWvhVlfrFcyN11Q0IGoVSxBQPqALWh96Qd9sVcb9HgQG6c884Z7q_PTBpQj0CeN95RcfkQLEEUa9XQbfe1KGQN0vZOqlcoS0jG8fi52G2jvkHnIyrA03W00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10108\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n[*] --&gt; \u958b\u555f\r\n\u958b\u555f -&gt; \u95dc\u9589 : checkout()\r\n\u95dc\u9589 --&gt; \u51fa\u8ca8 : paymentCleared()\r\n\u51fa\u8ca8 --&gt; \u9001\u9054\r\n\u9001\u9054 --&gt; [*]\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUMArefLqDMrKtWvhVlfrFcyN11Q0IGoVSxBQPqALWh96Qd9sVcb9HgQG6c884Z7q_PTBpQj0CeN95RcfkQLEEUa9XQbfe1KGQN0vZOqlcoS0jG8fi52G2jvkHnIyrA03W00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUMArefLqDMrK_0lICtZvGAH2a2USqv-SMgAWfL2SaPgSdP-QOc69YyNL12aEZWZiw00hA0WiJ8tDQ_4EISriIWr1QGC9WTIvvAQarcM2fJWvO8pmH90Qtcv75BpKe2E0000\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10109\">\u6d3b\u52d5\u5716<\/h4>\n<p data-nodeid=\"10110\">\u5f37\u8abf\u9806\u5e8f\u8207\u4e26\u884c\u7684\u63a7\u5236\u6d41\u7a0b\u3002<\/p>\n<p id=\"eaAESho\"><img alt=\"\" class=\"alignnone size-full wp-image-24819\" decoding=\"async\" height=\"278\" loading=\"lazy\" sizes=\"auto, (max-width: 306px) 100vw, 306px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cf2947ac.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cf2947ac.png 306w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cf2947ac-300x273.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2026\/05\/img_6a158cf2947ac-150x136.png 150w\" width=\"306\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:BOv12iCm30Jl0lr1xt0kwQdqrD0V66TRJ1sfo6uWlu-RvhOmm-wEjKLltwKm7OafF92GLyZTP_Z0z3H_Cuc4oIsXLfdYja3RYII-OjP3k9HYAJR8JTSkc6_TWSxohmXNAFpabXE6twXzcCOkzGyx\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwEQtxwV9kNYwhPtrBdqtPzc95qzDfwwnvkPvsj3tjx-JbKb2mUZ5pwlC9RKzsptYsPXz8fgttsPg5IF90vilMtgUxLZzTEmCe_tphX6TpvyFahPvFMVHyolpdC_SyNxe2fBjnphErYtYv75BpKe0E0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\" data-nodeid=\"10111\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n\u958b\u59cb\r\n:\u63a5\u6536\u8a02\u55ae;\r\n\u5206\u53c9\r\n  :\u8655\u7406\u4ed8\u6b3e;\r\n\u518d\u6b21\u5206\u53c9\r\n  :\u5206\u914d\u5eab\u5b58;\r\n\u7d50\u675f\u5206\u53c9\r\n:\u7522\u751f\u767c\u7968;\r\n\u505c\u6b62\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwEQtxwV9kNYwhPtrBdqtPzc95qzDfwwnvkPvsj3tjx-JbKb2mUZ5pwlC9RKzsptYsPXz8fgttsPg5IF90vilMtgUxLZzTEmCe_tphX6TpvyFahPvFMVHyolpdC_SyNxe2fBjnphErYtYv75BpKe0E0000\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com#plantuml:BOv12iCm30Jl0lr1xt0kwQdqrD0V66TRJ1sfo6uWlu-RvhOmm-wEjKLltwKm7OafF92GLyZTP_Z0z3H_Cuc4oIsXLfdYja3RYII-OjP3k9HYAJR8JTSkc6_TWSxohmXNAFpabXE6twXzcCOkzGyx\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<hr data-nodeid=\"10112\"\/>\n<h2 data-nodeid=\"10113\">\u7d50\u8ad6<\/h2>\n<p data-nodeid=\"10114\">\u7d71\u4e00\u5efa\u6a21\u8a9e\u8a00\u9060\u4e0d\u6b62\u662f\u4e00\u7d44\u5716\u8868\u8207\u8a9e\u6cd5\u898f\u5247\uff1b\u5b83\u662f\u4e00\u5957\u6709\u689d\u7406\u7684\u6846\u67b6\uff0c\u7528\u4ee5\u601d\u8003\u7cfb\u7d71\u7684\u8907\u96dc\u6027\u3002\u900f\u904e\u5c07 ShopSphere \u5206\u89e3\u70ba<strong data-nodeid=\"10319\">\u7269\u4ef6<\/strong>\uff0c\u6211\u5011\u5efa\u7acb\u4e86\u4e00\u5957\u7cbe\u78ba\u7684\u8a5e\u5f59\uff0c\u7528\u65bc\u975c\u614b\u7d50\u69cb\u3001\u52d5\u614b\u884c\u70ba\u3001\u7d44\u7e54\u908a\u754c\u8207\u6587\u4ef6\u5316\u3002\u900f\u904e<strong data-nodeid=\"10320\">\u95dc\u4fc2<\/strong>\uff0c\u6211\u5011\u7e6a\u88fd\u4e86\u6c7a\u5b9a\u9019\u4e9b\u5143\u7d20\u5982\u4f55\u4e92\u52d5\u3001\u7e7c\u627f\u548c\u5be6\u73fe\u5408\u7d04\u7684\u8a9e\u7fa9\u4f9d\u8cf4\u95dc\u4fc2\u3002\u6700\u5f8c\uff0c\u900f\u904e\u5c07\u9019\u4e9b\u5143\u7d20\u6295\u5c04\u5230\u76ee\u6a19<strong data-nodeid=\"10321\">\u5716\u8868<\/strong>\uff0c\u6211\u5011\u5efa\u7acb\u4e86\u91cf\u8eab\u8a02\u505a\u7684\u8996\u89ba\u5316\u5448\u73fe\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u5229\u5bb3\u95dc\u4fc2\u4eba\u7684\u9700\u6c42\u2014\u2014\u5f9e\u7522\u54c1\u7d93\u7406\u6240\u9700\u7684\u9ad8\u968e\u4f7f\u7528\u6848\u4f8b\uff0c\u5230\u958b\u767c\u904b\u7dad\u5de5\u7a0b\u5e2b\u6240\u9700\u7684\u8a73\u7d30\u90e8\u7f72\u5730\u5716\u3002<\/p>\n<p class=\"\" data-nodeid=\"10115\">\u638c\u63e1UML\u662f\u4e00\u500b\u8fed\u4ee3\u7684\u904e\u7a0b\u3002\u96a8\u8457\u7cfb\u7d71\u7684\u6f14\u9032\uff0c\u6a21\u578b\u5fc5\u9808\u4fdd\u6301\u70ba\u6d3b\u8e8d\u7684\u5be6\u9ad4\uff0c\u4ee5\u5f15\u5c0e\u958b\u767c\u3001\u4fc3\u9032\u65b0\u6210\u54e1\u878d\u5165\uff0c\u4e26\u9632\u6b62\u67b6\u69cb\u504f\u79fb\u3002\u900f\u904e\u5c07\u62bd\u8c61\u7684UML\u6982\u5ff5\u5efa\u7acb\u5728\u5177\u9ad4\u7684\u6848\u4f8b\u7814\u7a76\u4e4b\u4e0a\uff0c\u4e26\u904b\u7528\u5982PlantUML\u7b49\u73fe\u4ee3\u5316\u5efa\u6a21\u5de5\u5177\uff0c\u958b\u767c\u5718\u968a\u80fd\u5920\u5c07\u6a21\u7cca\u6027\u8f49\u5316\u70ba\u6e05\u6670\u6027\uff0c\u78ba\u4fdd\u8edf\u9ad4\u67b6\u69cb\u5982\u540c\u5be6\u73fe\u5b83\u7684\u7a0b\u5f0f\u78bc\u4e00\u6a23\u5805\u56fa\u3001\u53ef\u64f4\u5c55\u4e14\u6587\u4ef6\u5b8c\u6574\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 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