{"id":9943,"date":"2026-05-22T17:42:53","date_gmt":"2026-05-22T09:42:53","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/cn\/architecting-with-clarity-a-comprehensive-case-study-on-uml-building-blocks\/"},"modified":"2026-05-30T14:07:10","modified_gmt":"2026-05-30T06:07:10","slug":"architecting-with-clarity-a-comprehensive-case-study-on-uml-building-blocks","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/cn\/architecting-with-clarity-a-comprehensive-case-study-on-uml-building-blocks\/","title":{"rendered":"\u6e05\u6670\u67b6\u6784\uff1aUML\u6784\u5efa\u5757\u7684\u7efc\u5408\u6848\u4f8b\u7814\u7a76"},"content":{"rendered":"<h2 data-nodeid=\"10018\">\u5f15\u8a00<\/h2>\n<p data-nodeid=\"10019\">\u73b0\u4ee3\u8f6f\u4ef6\u7cfb\u7edf\u672c\u8d28\u4e0a\u975e\u5e38\u590d\u6742\uff0c\u7531\u6570\u767e\u4e2a\u76f8\u4e92\u4ea4\u4e92\u7684\u7ec4\u4ef6\u3001\u5e76\u53d1\u8fdb\u7a0b\u548c\u590d\u6742\u7684\u6570\u636e\u663e\u793a\u6d41\u6784\u6210\u3002\u5f25\u5408\u62bd\u8c61\u4e1a\u52a1\u9700\u6c42\u4e0e\u5177\u4f53\u6280\u672f\u5b9e\u73b0\u4e4b\u95f4\u7684\u5dee\u8ddd\uff0c\u9700\u8981\u4e00\u79cd\u6807\u51c6\u5316\u4e14\u65e0\u6b67\u4e49\u7684\u6c9f\u901a\u5a92\u4ecb\u3002\u7edf\u4e00\u5efa\u6a21\u8bed\u8a00\uff08UML\uff09\u6b63\u662f\u8fd9\u79cd\u901a\u7528\u84dd\u56fe\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u89c6\u89c9\u5316\u7684\u8bcd\u6c47\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u3001\u67b6\u6784\u5e08\u548c\u5229\u76ca\u76f8\u5173\u8005\u80fd\u591f\u5728\u4e0d\u540c\u4e13\u4e1a\u9886\u57df\u4e4b\u95f4\u5171\u4eab\u3002<\/p>\n<p data-nodeid=\"10020\">\u5c3d\u7ba1\u638c\u63e1UML\u8bed\u6cd5\u7684\u7406\u8bba\u77e5\u8bc6\u5f88\u6709\u4ef7\u503c\uff0c\u4f46\u771f\u6b63\u7684\u7cbe\u901a\u5728\u4e8e\u5c06\u8fd9\u4e9b\u6982\u5ff5\u5e94\u7528\u4e8e\u8fde\u8d2f\u4e14\u771f\u5b9e\u7684\u573a\u666f\u4e2d\u3002\u672c\u6848\u4f8b\u7814\u7a76\u5c55\u793a\u4e86UML\u7684\u4e09\u4e2a\u57fa\u7840\u6784\u5efa\u5757\u2014\u2014<strong data-nodeid=\"10132\">\u4e8b\u7269<\/strong>,\u00a0<strong data-nodeid=\"10133\">\u5173\u7cfb<\/strong>\uff0c\u4ee5\u53ca<strong data-nodeid=\"10134\">\u56fe<\/strong>\u2014\u2014\u5982\u4f55\u76f8\u4e92\u5173\u8054\u4ee5\u5efa\u6a21\u5b8c\u6574\u7684\u8f6f\u4ef6\u67b6\u6784\u3002\u901a\u8fc7\u5c06\u6bcf\u4e2aUML\u5143\u7d20\u5e94\u7528\u4e8e\u73b0\u4ee3\u7535\u5b50\u5546\u52a1\u5e73\u53f0\u7684\u8bbe\u8ba1\uff0c\u6211\u4eec\u5c06\u62bd\u8c61\u7684\u5efa\u6a21\u539f\u5219\u8f6c\u5316\u4e3a\u53ef\u64cd\u4f5c\u3001\u53ef\u6295\u5165\u751f\u4ea7\u7684\u53ef\u89c6\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\u201cShopSphere\u201d\u7535\u5b50\u5546\u52a1\u5e73\u53f0<\/h2>\n<p data-nodeid=\"10023\"><strong data-nodeid=\"10144\">ShopSphere<\/strong>\u662f\u4e00\u4e2a\u53ef\u6269\u5c55\u7684\u3001\u57fa\u4e8e\u4e91\u7684\u5728\u7ebf\u5e02\u573a\uff0c\u8fde\u63a5\u4e70\u5bb6\u3001\u7b2c\u4e09\u65b9\u5356\u5bb6\u548c\u7ba1\u7406\u4eba\u5458\u3002\u8be5\u7cfb\u7edf\u5fc5\u987b\u5904\u7406\u7528\u6237\u8eab\u4efd\u9a8c\u8bc1\u3001\u4ea7\u54c1\u76ee\u5f55\u7ba1\u7406\u3001\u8d2d\u7269\u8f66\u64cd\u4f5c\u3001\u5b89\u5168\u652f\u4ed8\u5904\u7406\u3001\u8ba2\u5355\u5c65\u884c\u548c\u5b9e\u65f6\u5e93\u5b58\u8ddf\u8e2a\u3002\u4e3a\u786e\u4fdd\u7cfb\u7edf\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u56e2\u961f\u95f4\u6e05\u6670\u7684\u6c9f\u901a\uff0c\u67b6\u6784\u56e2\u961f\u5df2\u91c7\u7528UML\u4f5c\u4e3a\u5176\u4e3b\u8981\u5efa\u6a21\u6807\u51c6\u3002<\/p>\n<hr data-nodeid=\"10024\"\/>\n<h2 data-nodeid=\"10025\">\u7b2c\u4e00\u90e8\u5206\uff1a\u4f7f\u7528UML\u201c\u4e8b\u7269\u201d\u5efa\u6a21<\/h2>\n<p data-nodeid=\"10026\">\u4e8b\u7269\u662f\u4efb\u4f55UML\u6a21\u578b\u4e2d\u7684\u7b2c\u4e00\u7c7b\u516c\u6c11\u3002\u5b83\u4eec\u4ee3\u8868\u9759\u6001\u540d\u8bcd\u3001\u52a8\u6001\u52a8\u8bcd\u3001\u7ec4\u7ec7\u5bb9\u5668\u4ee5\u53ca\u89e3\u91ca\u6027\u6ce8\u91ca\uff0c\u6784\u6210\u4e86ShopSphere\u67b6\u6784\u7684\u57fa\u7840\u3002<\/p>\n<h3 data-nodeid=\"10027\">1. \u7ed3\u6784\u4e8b\u7269\uff08\u9759\u6001\u540d\u8bcd\uff09<\/h3>\n<p data-nodeid=\"10028\">\u7ed3\u6784\u4e8b\u7269\u5b9a\u4e49\u4e86\u7cfb\u7edf\u4e2d\u6301\u4e45\u5b58\u5728\u7684\u7269\u7406\u548c\u6982\u5ff5\u6027\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>\u5728VPasCode\u4e2d\u7f16\u8f91PlantUML<\/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:JL5FIrj14By_UDzXyT98lq4GKNAG78g1P_4eaztHBDct4sPtOrCHMiYXHG_IUlBWoOCz5Iy63Eg7QPBtDJelYU1jPdRczsztGWIEgNHvza7Dh_vMr_VLm_JVj-zIp5ukvhykg-buDdsiRiQBoMH-zMFs_2fFUGREqMbflrX_KfzMqz-Bs_7iwQBw-QUwUvBJFDCEGb2j52ALoEeipvJwM4IM4uKbMFT-uA74PSzuOaD4RcpcsNcUMI_rCMXKxGwCIlHn3oAUmcYD1odsYErNR419oSUcCfIw3ZURgala4FnoJSCW9iP6PF01TBJaswQfLkIoEoHhbdmhqVjia3jC6aEGXKFY_h7uLLkQd8CkCTG8stcM0ce8g3PQFTHzId53GL2VMqTl_HjYsmz5E_6e67bT80-jMDggbGnnU-s5a-y8lX0Uz1Z1r178E0sCM2uYwVuw54tbWBpWgNKcdyWa9_bvCgXQZfAfAP2FTW-BFDj1R-IB_mC0\" \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' \u542f\u7528\u7c7b\u3001\u7528\u4f8b\u548c\u7ec4\u4ef6\u7684\u6df7\u5408\u4f7f\u7528\r\nallowmixing\r\n' \u7ed3\u6784\u4e8b\u7269\u793a\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 \"Checkout\" 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:JL5FIrj14By_UDzXyT98lq4GKNAG78g1P_4eaztHBDct4sPtOrCHMiYXHG_IUlBWoOCz5Iy63Eg7QPBtDJelYU1jPdRczsztGWIEgNHvza7Dh_vMr_VLm_JVj-zIp5ukvhykg-buDdsiRiQBoMH-zMFs_2fFUGREqMbflrX_KfzMqz-Bs_7iwQBw-QUwUvBJFDCEGb2j52ALoEeipvJwM4IM4uKbMFT-uA74PSzuOaD4RcpcsNcUMI_rCMXKxGwCIlHn3oAUmcYD1odsYErNR419oSUcCfIw3ZURgala4FnoJSCW9iP6PF01TBJaswQfLkIoEoHhbdmhqVjia3jC6aEGXKFY_h7uLLkQd8CkCTG8stcM0ce8g3PQFTHzId53GL2VMqTl_HjYsmz5E_6e67bT80-jMDggbGnnU-s5a-y8lX0Uz1Z1r178E0sCM2uYwVuw54tbWBpWgNKcdyWa9_bvCgXQZfAfAP2FTW-BFDj1R-IB_mC0\" \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>\u5728VPasCode\u4e2d\u7f16\u8f91PlantUML<\/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\">\u7c7b<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10156\">Customer<\/code>\uff09\uff1a\u5b9a\u4e49\u5e26\u6709\u5c5e\u6027\u548c\u64cd\u4f5c\u7684\u5bf9\u8c61\u84dd\u56fe\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10033\">\n<p data-nodeid=\"10034\"><strong data-nodeid=\"10165\">\u63a5\u53e3<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10163\">IPaymentGateway<\/code>\uff09\uff1a\u6307\u5b9a\u4e0d\u5305\u542b\u5b9e\u73b0\u7ec6\u8282\u7684\u5951\u7ea6\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10035\">\n<p data-nodeid=\"10036\"><strong data-nodeid=\"10172\">\u534f\u4f5c<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10170\">[\u8ba2\u5355\u5904\u7406\u5de5\u4f5c\u6d41]<\/code>): \u5bf9\u534f\u540c\u5de5\u4f5c\u4ee5\u5b9e\u73b0\u5171\u540c\u76ee\u6807\u7684\u89d2\u8272\u8fdb\u884c\u5efa\u6a21\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10037\">\n<p data-nodeid=\"10038\"><strong data-nodeid=\"10179\">\u7528\u4f8b<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10177\">\u7ed3\u8d26<\/code>): \u6355\u83b7\u5916\u90e8\u53ef\u89c1\u7684\u7cfb\u7edf\u884c\u4e3a\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10039\">\n<p data-nodeid=\"10040\"><strong data-nodeid=\"10186\">\u4e3b\u52a8\u7c7b<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10184\">[\u5e93\u5b58\u540c\u6b65\u670d\u52a1]<\/code>): \u8868\u793a\u5e76\u53d1\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10041\">\n<p data-nodeid=\"10042\"><strong data-nodeid=\"10193\">\u7ec4\u4ef6<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10191\">[\u652f\u4ed8\u6a21\u5757]<\/code>): \u53ef\u90e8\u7f72\u3001\u53ef\u66ff\u6362\u7684\u7269\u7406\u6a21\u5757\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10043\">\n<p data-nodeid=\"10044\"><strong data-nodeid=\"10200\">\u8282\u70b9<\/strong>\u00a0(<code data-backticks=\"1\" data-nodeid=\"10198\">[\u4e91\u670d\u52a1\u5668_AWS]<\/code>): \u8fd0\u884c\u65f6\u8ba1\u7b97\u8d44\u6e90\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"10045\">2. \u884c\u4e3a\u4e8b\u7269\uff08\u52a8\u6001\u52a8\u8bcd\uff09<\/h3>\n<p data-nodeid=\"10046\">\u884c\u4e3a\u4e8b\u7269\u6355\u6349\u7cfb\u7edf\u968f\u65f6\u95f4\u6f14\u53d8\u4ee5\u53ca\u5bf9\u523a\u6fc0\u7684\u54cd\u5e94\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>\u5728VPasCode\u4e2d\u7f16\u8f91PlantUML<\/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:SoWkIImgAStDuULILtYoQycJNPFUx-bujgtZMUDw8FTPxwBtUpfvkPxsDptPqVUYeLNXoSuDJzTjGnPviMNjyywLB_OkGnPyDcNzazqpdkwP-cno7oyNH9E2hXr2iOALGc9AIa1HVaffSec6qfETovGqURaGqa2ro6O0bPSbvcIc99QaEWCTh05KYoAjYsPsCb1H64Y3Wgr2IL5fAY-NGsfU2j2V0000\" \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' \u4ea4\u4e92\uff08\u6d88\u606f\u4ea4\u6362\uff09\r\n\u53c2\u4e0e\u8005 \u4e70\u5bb6\r\n\u53c2\u4e0e\u8005 \u8d2d\u7269\u8f66\r\n\u53c2\u4e0e\u8005 \u652f\u4ed8\u5f15\u64ce\r\n\u4e70\u5bb6 -&gt; \u8d2d\u7269\u8f66 : addProduct(\"\u4e66\")\r\n\u8d2d\u7269\u8f66 -&gt; \u652f\u4ed8\u5f15\u64ce : validateCart()\r\n\u652f\u4ed8\u5f15\u64ce --&gt; \u8d2d\u7269\u8f66 : cartValid = true\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULILtYoQycJNPFUx-bujgtZMUDw8FTPxwBtUpfvkPxsDptPqVUYeLNXoSuDJzTjGnPviMNjyywLB_OkGnPyDcNzazqpdkwP-cno7oyNH9E2hXr2iOALGc9AIa1HVaffSec6qfETovGqURaGqa2ro6O0bPSbvcIc99QaEWCTh05KYoAjYsPsCb1H64Y3Wgr2IL5fAY-NGsfU2j2V0000\" \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>\u5728VPasCode\u4e2d\u7f16\u8f91PlantUML<\/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\">\u4ea4\u4e92<\/strong>: \u6d88\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\u5bf9\u8c61\u4e4b\u95f4\u4ea4\u6362\u3002<\/p>\n<\/li>\n<li data-nodeid=\"10051\">\n<p data-nodeid=\"10052\"><strong data-nodeid=\"10222\">\u72b6\u6001\u673a<\/strong>: \u751f\u547d\u5468\u671f\u8f6c\u6362\uff08<code data-backticks=\"1\" data-nodeid=\"10216\">\u5f85\u5904\u7406<\/code>\u00a0\u2192\u00a0<code data-backticks=\"1\" data-nodeid=\"10218\">\u5904\u7406\u4e2d<\/code>\u00a0\u2192\u00a0<code data-backticks=\"1\" data-nodeid=\"10220\">\u5df2\u53d1\u8d27\/\u5df2\u53d6\u6d88<\/code>) \u7531\u4e8b\u4ef6\u89e6\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"10053\">3. \u5206\u7ec4\u4e8b\u7269\uff08\u7ec4\u7ec7\u5bb9\u5668\uff09<\/h3>\n<p data-nodeid=\"10054\">\u5206\u7ec4\u4e8b\u7269\u5c06\u590d\u6742\u7684\u6a21\u578b\u5206\u89e3\u4e3a\u53ef\u7ba1\u7406\u7684\u547d\u540d\u7a7a\u95f4\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\u7f16\u8f91 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:NP31IWCn54NtWVn3wCRVQ1bQc8KeYAlIHSWyXc3oChoaTK04HGkbT56aIp-WAy6D7HZ4dvau_Gn7GMpTlSlb72wlxuEaCBM6inCHv_Vxboe-R-DwrLHtxQQErKDJBJztkxXUDEyVxMRRljRnQTNMZqtznfaqnbrRNMhCEIkakf8vY5xY219dBP22dhZXJ0XbfFVYZ3AWlvZYp6a5dDqUm9SUw5HYTrl0S8GdKn-SFJGCCglncpXs3Ci0XDAa620d6RH3_sjojd3OcSNu8f0kkg68e8AZoRzw1Dcm79odanzt7p3htlG5\" \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\u8bb8\u5728\u540c\u4e00\u753b\u5e03\u4e0a\u6df7\u5408\u4f7f\u7528\u7c7b\u548c\u7ec4\u4ef6\r\nallowmixing\r\npackage \"CoreCommerce\" {\r\n  class Order\r\n  class Invoice\r\n}\r\npackage \"UserManagement\" {\r\n  class Customer\r\n  class AdminUser\r\n}\r\npackage \"ExternalIntegrations\" {\r\n  component [StripeConnector]\r\n  component [FedExAPI]\r\n}\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:NP31IWCn54NtWVn3wCRVQ1bQc8KeYAlIHSWyXc3oChoaTK04HGkbT56aIp-WAy6D7HZ4dvau_Gn7GMpTlSlb72wlxuEaCBM6inCHv_Vxboe-R-DwrLHtxQQErKDJBJztkxXUDEyVxMRRljRnQTNMZqtznfaqnbrRNMhCEIkakf8vY5xY219dBP22dhZXJ0XbfFVYZ3AWlvZYp6a5dDqUm9SUw5HYTrl0S8GdKn-SFJGCCglncpXs3Ci0XDAa620d6RH3_sjojd3OcSNu8f0kkg68e8AZoRzw1Dcm79odanzt7p3htlG5\" \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\u7f16\u8f91 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\">\u5305<\/strong>: \u4ec5\u4f5c\u4e3a\u6982\u5ff5\u6027\u5bb9\u5668\uff0c\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7ec4\u7ec7\u76f8\u5173\u5143\u7d20\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"10059\">4. \u6ce8\u91ca\u6027\u4e8b\u7269\uff08\u89e3\u91ca\u6027\u6ce8\u91ca\uff09<\/h3>\n<p data-nodeid=\"10060\">\u6ce8\u91ca\u6027\u4e8b\u7269\u63d0\u4f9b\u6e05\u6670\u6027\u3001\u7ea6\u675f\u6761\u4ef6\u548c\u5f00\u53d1\u4eba\u5458\u6307\u5bfc\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\u7f16\u8f91 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:SoWkIImgAStDuULApaaiBbRmBqf9BLAevkLIKD1soIzDoabLACalISnnpCqlpIi12mUN56NcfIi0TPQK5lDorV9ovUMNf2eKPQPdb2Zafq6C0AbyicFMqww5BvQtFEsO-NxFhATpLZplslQieV75tZNFUXSzsR7hKSECfqjQdazeUx9ZxQE6cKzsTZ_jx7s_fmV9HeMd-rjVBjpzjAVrwOJL84EVh-XxiMNdqqazB_PF038UDpJnSgNcfIY0tC3BvG1a0dq30000\" \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 Order {\r\n  +Double totalAmount\r\n  +String status\r\n}\r\nnote right of Order\r\n  \u4e1a\u52a1\u89c4\u5219\uff1a\u5728\u72b6\u6001\u8f6c\u6362\u4e3a\u2018\u5904\u7406\u4e2d\u2019\u4e4b\u524d\uff0ctotalAmount \u5fc5\u987b\u5305\u542b\r\n  \u7a0e\u8d39\u548c\u8fd0\u8d39\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:SoWkIImgAStDuULApaaiBbRmBqf9BLAevkLIKD1soIzDoabLACalISnnpCqlpIi12mUN56NcfIi0TPQK5lDorV9ovUMNf2eKPQPdb2Zafq6C0AbyicFMqww5BvQtFEsO-NxFhATpLZplslQieV75tZNFUXSzsR7hKSECfqjQdazeUx9ZxQE6cKzsTZ_jx7s_fmV9HeMd-rjVBjpzjAVrwOJL84EVh-XxiMNdqqazB_PF038UDpJnSgNcfIY0tC3BvG1a0dq30000\" \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\u7f16\u8f91 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\">\u6ce8\u91ca<\/strong>: \u9644\u52a0\u5230\u5143\u7d20\u4e0a\u7684\u6298\u89d2\u6587\u672c\u5757\uff0c\u7528\u4e8e\u7ea6\u675f\u3001\u5907\u6ce8\u6216\u6587\u6863\u8bf4\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 \u5173\u7cfb\u8fde\u63a5\u5143\u7d20<\/h2>\n<p data-nodeid=\"10067\">\u5173\u7cfb\u5b9a\u4e49\u4e86\u7ed1\u5b9a\u4e8b\u7269\u5728\u4e00\u8d77\u7684\u8bed\u4e49\u548c\u7ed3\u6784\u4f9d\u8d56\u3002ShopSphere \u7684\u67b6\u6784\u4f9d\u8d56\u4e8e\u56db\u79cd\u4e3b\u8981\u7684\u5173\u7cfb\u6784\u5efa\u6a21\u5757\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\u7f16\u8f91 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:RPBBQi9058RtWRp38Pk2aA6sNOa4mLLN5No2a4nhG1EPn4AX6sa5xSMw4A6Msb9ABmkbaXR4I_Co6ITT-GeTZRQYRlyp_pVV72PXEofn2hciA6n1EcFbq_aC9XZyNfirpsd9PUw0TGUqTIaAMbQrxTcXl64U9NblaQNKanmsdJGcnuQ6HS4m7KmELGt3_doK8fQ6RTiYYqgIODrmE4HV6_5AIiqknLEtA0B_-pxuQeHEas4vk6solZSPLaHXsGaGKbQ480Rnk3_oMFrDKKBS3W8E2efrlrSDYarQAtCYxRGuaVPUWfik7JtDqCc2xLWvJ42AIX2HPP2s4Of8S41q7iQ0rH_6vHhCiRiSoo7LZpy_Ul78tllKEsETDdt-39dhR-VMfygcRKsfUmZ6xXszQlmxRg2kh0racHCtNSMb1w_ZYlTJkcQZZYWaiAdp7_0B\" \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\u5173\u7cfb\u7c7b\u578b\r\nclass ShoppingCart\r\nclass PaymentService\r\ninterface IPaymentProcessor\r\nclass CreditCardProcessor\r\nclass PayPalProcessor\r\n\r\n' 1. \u4f9d\u8d56\u5173\u7cfb\uff08\u865a\u7ebf\uff09\r\nShoppingCart ..&gt; PaymentService : &lt;&lt;\u4f7f\u7528&gt;&gt;\r\n\r\n' 2. \u5173\u8054\u4e0e\u805a\u5408\uff08\u5b9e\u7ebf\u5e26\u83f1\u5f62\uff09\r\nCustomer \"1\" *-- \"0..*\" Order : \u751f\u6210 &gt;\r\n\r\n' 3. \u5b9e\u73b0\uff08\u865a\u7ebf\u52a0\u7a7a\u5fc3\u7bad\u5934\uff09\r\nCreditCardProcessor ..|&gt; IPaymentProcessor\r\n\r\n' 4. \u6cdb\u5316\uff08\u5b9e\u7ebf\u52a0\u7a7a\u5fc3\u7bad\u5934\uff09\r\nPayPalProcessor --|&gt; CreditCardProcessor : \u7ee7\u627f\u914d\u7f6e\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:RPBBQi9058RtWRp38Pk2aA6sNOa4mLLN5No2a4nhG1EPn4AX6sa5xSMw4A6Msb9ABmkbaXR4I_Co6ITT-GeTZRQYRlyp_pVV72PXEofn2hciA6n1EcFbq_aC9XZyNfirpsd9PUw0TGUqTIaAMbQrxTcXl64U9NblaQNKanmsdJGcnuQ6HS4m7KmELGt3_doK8fQ6RTiYYqgIODrmE4HV6_5AIiqknLEtA0B_-pxuQeHEas4vk6solZSPLaHXsGaGKbQ480Rnk3_oMFrDKKBS3W8E2efrlrSDYarQAtCYxRGuaVPUWfik7JtDqCc2xLWvJ42AIX2HPP2s4Of8S41q7iQ0rH_6vHhCiRiSoo7LZpy_Ul78tllKEsETDdt-39dhR-VMfygcRKsfUmZ6xXszQlmxRg2kh0racHCtNSMb1w_ZYlTJkcQZZYWaiAdp7_0B\" \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>\u5728VPasCode\u4e2d\u7f16\u8f91PlantUML<\/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\u8d56<\/strong>: \u5bf9\u00a0\u7684\u66f4\u6539<code data-backticks=\"1\" data-nodeid=\"10245\">\u652f\u4ed8\u670d\u52a1<\/code>\u00a0\u53ef\u80fd\u5f71\u54cd\u00a0<code data-backticks=\"1\" data-nodeid=\"10247\">\u8d2d\u7269\u8f66<\/code>.<\/p>\n<\/li>\n<li data-nodeid=\"10072\">\n<p data-nodeid=\"10073\"><strong data-nodeid=\"10262\">\u5173\u8054\/\u805a\u5408<\/strong>:\u00a0<code data-backticks=\"1\" data-nodeid=\"10254\">\u5ba2\u6237<\/code>\u00a0\u4e0e\u00a0\u4fdd\u6301\u7ed3\u6784\u6027\u7684\u201c\u6574\u4f53\/\u90e8\u5206\u201d\u5173\u8054<code data-backticks=\"1\" data-nodeid=\"10260\">\u8ba2\u5355<\/code>.<\/p>\n<\/li>\n<li data-nodeid=\"10074\">\n<p data-nodeid=\"10075\"><strong data-nodeid=\"10271\">\u5b9e\u73b0<\/strong>:\u00a0<code data-backticks=\"1\" data-nodeid=\"10267\">\u4fe1\u7528\u5361\u5904\u7406\u5668<\/code>\u00a0\u4fdd\u8bc1\u7531\u00a0\u6307\u5b9a\u7684\u5408\u7ea6<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\u5904\u7406\u5668<\/code>\u00a0\u4e13\u95e8\u5316\u00a0<code data-backticks=\"1\" data-nodeid=\"10278\">\u4fe1\u7528\u5361\u5904\u7406\u5668<\/code>\uff0c\u7ee7\u627f\u5176\u7ed3\u6784\u548c\u884c\u4e3a\u3002<\/p>\n<\/li>\n<\/ul>\n<hr data-nodeid=\"10078\"\/>\n<h2 data-nodeid=\"10079\">\u7b2c\u4e09\u90e8\u5206\uff1a\u4f7f\u7528UML\u56fe\u53ef\u89c6\u5316\u67b6\u6784<\/h2>\n<p data-nodeid=\"10080\">\u56fe\u8868\u662f\u5c06\u4e8b\u7269\u548c\u5173\u7cfb\u5206\u7ec4\u4e3a\u5229\u76ca\u76f8\u5173\u8005\u7279\u5b9a\u89c6\u56fe\u7684\u56fe\u5f62\u6295\u5f71\u3002\u4ee5\u4e0b\u662fShopSphere\u7684\u5b8c\u6574\u56fe\u8868\u5b9e\u73b0\uff0c\u6309\u7ed3\u6784\u548c\u884c\u4e3a\u89c6\u89d2\u5206\u7c7b\u3002<\/p>\n<h3 data-nodeid=\"10081\">\u7ed3\u6784\u56fe<\/h3>\n<p data-nodeid=\"10082\">\u6355\u6349\u9759\u6001\u67b6\u6784\u548c\u7269\u7406\u90e8\u7f72\u3002<\/p>\n<h4 data-nodeid=\"10083\">\u7c7b\u56fe<\/h4>\n<p data-nodeid=\"10084\">\u663e\u793a\u7cfb\u7edf\u7c7b\u3001\u63a5\u53e3\u53ca\u5176\u9759\u6001\u5173\u7cfb\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\u7f16\u8f91 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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10086\">\u5bf9\u8c61\u56fe<\/h4>\n<p data-nodeid=\"10087\">\u8868\u793a\u8fd0\u884c\u65f6\u5b9e\u4f8b\u5316\u5bf9\u8c61\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\u7f16\u8f91 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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10089\">\u7ec4\u4ef6\u56fe<\/h4>\n<p data-nodeid=\"10090\">\u5c55\u793a\u6a21\u5757\u5316\u4f9d\u8d56\u5173\u7cfb\u548c\u63a5\u53e3\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\u7f16\u8f91 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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10092\">\u90e8\u7f72\u56fe<\/h4>\n<p data-nodeid=\"10093\">\u5c06\u8f6f\u4ef6\u7ec4\u4ef6\u6620\u5c04\u5230\u7269\u7406\u8fd0\u884c\u65f6\u8282\u70b9\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\u7f16\u8f91 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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3 data-nodeid=\"10095\">\u884c\u4e3a\u56fe<\/h3>\n<p data-nodeid=\"10096\">\u6355\u6349\u52a8\u6001\u5de5\u4f5c\u6d41\u3001\u4ea4\u4e92\u548c\u63a7\u5236\u6d41\u3002<\/p>\n<h4 data-nodeid=\"10097\">\u7528\u4f8b\u56fe<\/h4>\n<p data-nodeid=\"10098\">\u5c06\u53c2\u4e0e\u8005\u6620\u5c04\u5230\u7cfb\u7edf\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\u7f16\u8f91 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-FbIamkoIzIS2ujBidFJIs2yHrJSZE1agN5gSc9nQaAIi-szhzOtl5yzhgdUwSgAIGMAuGw6o99Fr-tyFc4jgUx9ZzTEmCgRSJB1JDKGLVN3g81R2oK2rJWa9gN0dGT0000\" \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 \"\u6d4f\u89c8\u76ee\u5f55\" as UC1\r\nusecase \"\u7ba1\u7406\u5e93\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-FbIamkoIzIS2ujBidFJIs2yHrJSZE1agN5gSc9nQaAIi-szhzOtl5yzhgdUwSgAIGMAuGw6o99Fr-tyFc4jgUx9ZzTEmCgRSJB1JDKGLVN3g81R2oK2rJWa9gN0dGT0000\" \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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10100\">\u5e8f\u5217\u56fe<\/h4>\n<p data-nodeid=\"10101\">\u5f3a\u8c03\u6309\u65f6\u95f4\u987a\u5e8f\u7684\u6d88\u606f\u4ea4\u6362\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\u7f16\u8f91 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:SoWkIImgAStDuULwsj_qP4VVYuPMXUTJLZphs8uiycBBskUTAr_iNOOiw1ZWoSi5KQkWQuTGes2bK9oQavfSubcIcgkXoSk5a04g0-e2AaZEI4tE3Yx9Jyu6AG29wQ8R0P9qB4lCp4bCoab5CGIe4cejqA3ylBJCebp7b1IGGGwfUIb0pm00\" \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\u53c2\u4e0e\u8005 \u7528\u6237\r\n\u53c2\u4e0e\u8005 \u8d2d\u7269\u8f66\r\n\u53c2\u4e0e\u8005 API\r\n\u7528\u6237 -&gt; \u8d2d\u7269\u8f66 : selectItem()\r\n\u8d2d\u7269\u8f66 -&gt; API : checkStock()\r\nAPI --&gt; \u8d2d\u7269\u8f66 : stockAvailable\r\n\u8d2d\u7269\u8f66 --&gt; \u7528\u6237 : confirmAdd()\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuULwsj_qP4VVYuPMXUTJLZphs8uiycBBskUTAr_iNOOiw1ZWoSi5KQkWQuTGes2bK9oQavfSubcIcgkXoSk5a04g0-e2AaZEI4tE3Yx9Jyu6AG29wQ8R0P9qB4lCp4bCoab5CGIe4cejqA3ylBJCebp7b1IGGGwfUIb0pm00\" \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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10103\">\u901a\u4fe1\u56fe<\/h4>\n<p data-nodeid=\"10104\">\u5173\u6ce8\u6d88\u606f\u4f20\u9012\u5bf9\u8c61\u7684\u7ed3\u6784\u7ec4\u7ec7\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\u7f16\u8f91 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:SoWkIImgAStDuULwkdxdYuqB5PvFMV6iOpkS-sBBskUTAr_iNGONSGpmvEM2g5BGjKCeKB1ICBHIA4xDIKqkyIn9pTNGvEL2I09L0ZK2rHXPAIHdf2Pd1vVa9sU3r824TT4CChPIA4ejAItA2qejBiqf0IbpICrB0ReJ0000\" \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\u5bf9\u8c61 \u7528\u6237\r\n\u5bf9\u8c61 \u8d2d\u7269\u8f66\r\n\u5bf9\u8c61 API\r\n\u7528\u6237 -&gt; \u8d2d\u7269\u8f66 : 1: selectItem()\r\n\u8d2d\u7269\u8f66 -&gt; API : 2: checkStock()\r\nAPI --&gt; \u8d2d\u7269\u8f66 : 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:SoWkIImgAStDuULwkdxdYuqB5PvFMV6iOpkS-sBBskUTAr_iNGONSGpmvEM2g5BGjKCeKB1ICBHIA4xDIKqkyIn9pTNGvEL2I09L0ZK2rHXPAIHdf2Pd1vVa9sU3r824TT4CChPIA4ejAItA2qejBiqf0IbpICrB0ReJ0000\" \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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10106\">\u72b6\u6001\u56fe<\/h4>\n<p data-nodeid=\"10107\">\u663e\u793a\u53cd\u5e94\u5f0f\u72b6\u6001\u8f6c\u6362\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\u7f16\u8f91 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:SoWkIImgAStDuUMArefLqDMrKtZMEVdfdWPUBWYj01HvshhvvVIr2bOAoHcfoTdvfIKQchnSK46GZgVRDptjd_XYotAWaeB4ojpKl1BddDJ4ejGKi4AuB5JjouR65_lsWIKWJB04q7fUBeVKl1IWOm00\" \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; \u6253\u5f00\r\n\u6253\u5f00 -&gt; \u5173\u95ed : checkout()\r\n\u5173\u95ed --&gt; \u5df2\u53d1\u8d27 : paymentCleared()\r\n\u5df2\u53d1\u8d27 --&gt; \u5df2\u9001\u8fbe\r\n\u5df2\u9001\u8fbe --&gt; [*]\r\n@enduml\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com#plantuml:SoWkIImgAStDuUMArefLqDMrKtZMEVdfdWPUBWYj01HvshhvvVIr2bOAoHcfoTdvfIKQchnSK46GZgVRDptjd_XYotAWaeB4ojpKl1BddDJ4ejGKi4AuB5JjouR65_lsWIKWJB04q7fUBeVKl1IWOm00\" \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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h4 data-nodeid=\"10109\">\u6d3b\u52a8\u56fe<\/h4>\n<p data-nodeid=\"10110\">\u7a81\u51fa\u663e\u793a\u987a\u5e8f\u548c\u5e76\u53d1\u7684\u63a7\u5236\u6d41\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\u7f16\u8f91 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:SoWkIImgAStDuULwkgVXwV9kNYwhPtrBdqtPzcBTegUzKws1uXrjJ_ixURaK5AoUBcbvFg7joUuPpzRi0ycqzJvRin1PlgFjPMllqrsJdwwT0PH_ldloixdpOV9MpwVCVzOnuMd_nETBLu1qDyvvjdOHBvT3QbuAq040\" \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\u5f00\u59cb\r\n:\u63a5\u6536\u8ba2\u5355;\r\n\u5206\u53c9\r\n  :\u5904\u7406\u4ed8\u6b3e;\r\n\u518d\u6b21\u5206\u53c9\r\n  :\u5206\u914d\u5e93\u5b58;\r\n\u7ed3\u675f\u5206\u53c9\r\n:\u751f\u6210\u53d1\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:SoWkIImgAStDuULwkgVXwV9kNYwhPtrBdqtPzcBTegUzKws1uXrjJ_ixURaK5AoUBcbvFg7joUuPpzRi0ycqzJvRin1PlgFjPMllqrsJdwwT0PH_ldloixdpOV9MpwVCVzOnuMd_nETBLu1qDyvvjdOHBvT3QbuAq040\" \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\u7f16\u8f91 PlantUML<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<hr data-nodeid=\"10112\"\/>\n<h2 data-nodeid=\"10113\">\u7ed3\u8bba<\/h2>\n<p data-nodeid=\"10114\">\u7edf\u4e00\u5efa\u6a21\u8bed\u8a00\u8fdc\u4e0d\u6b62\u662f\u4e00\u7ec4\u56fe\u8868\u548c\u8bed\u6cd5\u89c4\u5219\uff1b\u5b83\u662f\u4e00\u79cd\u7cfb\u7edf\u6027\u601d\u8003\u7cfb\u7edf\u590d\u6742\u6027\u7684\u4e25\u8c28\u6846\u67b6\u3002\u901a\u8fc7\u5c06 ShopSphere \u5206\u89e3\u4e3a<strong data-nodeid=\"10319\">\u4e8b\u7269<\/strong>\uff0c\u6211\u4eec\u5efa\u7acb\u4e86\u4e00\u5957\u7cbe\u786e\u7684\u8bcd\u6c47\uff0c\u7528\u4e8e\u63cf\u8ff0\u9759\u6001\u7ed3\u6784\u3001\u52a8\u6001\u884c\u4e3a\u3001\u7ec4\u7ec7\u8fb9\u754c\u548c\u6587\u6863\u3002\u901a\u8fc7<strong data-nodeid=\"10320\">\u5173\u7cfb<\/strong>\uff0c\u6211\u4eec\u7ed8\u5236\u4e86\u51b3\u5b9a\u8fd9\u4e9b\u5143\u7d20\u5982\u4f55\u4ea4\u4e92\u3001\u7ee7\u627f\u548c\u5b9e\u73b0\u5951\u7ea6\u7684\u8bed\u4e49\u4f9d\u8d56\u5173\u7cfb\u3002\u6700\u540e\uff0c\u901a\u8fc7\u5c06\u8fd9\u4e9b\u5143\u7d20\u6295\u5c04\u5230\u76ee\u6807<strong data-nodeid=\"10321\">\u56fe\u8868<\/strong>\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u5b9a\u5236\u5316\u7684\u53ef\u89c6\u5316\u56fe\u8868\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u5229\u76ca\u76f8\u5173\u8005\u7684\u9700\u6c42\u2014\u2014\u4ece\u4ea7\u54c1\u7ecf\u7406\u6240\u9700\u7684\u9ad8\u5c42\u6b21\u7528\u4f8b\u5230DevOps\u5de5\u7a0b\u5e08\u6240\u9700\u7684\u5177\u4f53\u90e8\u7f72\u56fe\u3002<\/p>\n<p class=\"\" data-nodeid=\"10115\">\u638c\u63e1UML\u662f\u4e00\u4e2a\u8fed\u4ee3\u7684\u8fc7\u7a0b\u3002\u968f\u7740\u7cfb\u7edf\u4e0d\u65ad\u6f14\u8fdb\uff0c\u6a21\u578b\u5fc5\u987b\u4fdd\u6301\u4e3a\u52a8\u6001\u7684\u3001\u6301\u7eed\u53d1\u6325\u4f5c\u7528\u7684\u4ea7\u7269\uff0c\u4ee5\u6307\u5bfc\u5f00\u53d1\u3001\u4fc3\u8fdb\u65b0\u6210\u5458\u5165\u804c\u5e76\u9632\u6b62\u67b6\u6784\u6f02\u79fb\u3002\u901a\u8fc7\u5c06\u62bd\u8c61\u7684UML\u6982\u5ff5\u624e\u6839\u4e8e\u5177\u4f53\u7684\u6848\u4f8b\u7814\u7a76\uff0c\u5e76\u5229\u7528PlantUML\u7b49\u73b0\u4ee3\u5efa\u6a21\u5de5\u5177\uff0c\u5f00\u53d1\u56e2\u961f\u80fd\u591f\u5c06\u6a21\u7cca\u6027\u8f6c\u5316\u4e3a\u6e05\u6670\u6027\uff0c\u786e\u4fdd\u8f6f\u4ef6\u67b6\u6784\u5982\u540c\u5b9e\u73b0\u5b83\u4eec\u7684\u4ee3\u7801\u4e00\u6837\u575a\u56fa\u3001\u53ef\u6269\u5c55\u4e14\u6587\u6863\u5b8c\u5584\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 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