{"id":3628,"date":"2022-02-11T10:57:20","date_gmt":"2022-02-11T02:57:20","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/tw\/?p=3628"},"modified":"2022-11-25T17:59:58","modified_gmt":"2022-11-25T09:59:58","slug":"everything-you-need-to-know-about-sequence-diagrams","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/tw\/everything-you-need-to-know-about-sequence-diagrams\/","title":{"rendered":"\u95dc\u65bc\u5e8f\u5217\u5716\u4f60\u9700\u8981\u77e5\u9053\u7684\u4e00\u5207"},"content":{"rendered":"<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Unified_Modeling_Language\" target=\"_blank\" rel=\"noopener\"><span>UML<\/span><\/a><span>\u00a0\u5e8f\u5217\u5716\u662f\u8a73\u7d30\u8aaa\u660e\u5982\u4f55\u57f7\u884c\u64cd\u4f5c\u7684\u4ea4\u4e92\u5716\u3002\u5b83\u5011\u6355\u7372\u5354\u4f5c\u4e0a\u4e0b\u6587\u4e2d\u5c0d\u8c61\u4e4b\u9593\u7684\u4ea4\u4e92\u3002\u5e8f\u5217\u5716\u662f\u6642\u9593\u7126\u9ede\uff0c\u5b83\u5011\u901a\u904e\u4f7f\u7528\u5716\u7684\u5782\u76f4\u8ef8\u4f86\u8868\u793a\u767c\u9001\u4ec0\u9ebc\u6d88\u606f\u4ee5\u53ca\u4f55\u6642\u767c\u9001\u7684\u6642\u9593\u4f86\u76f4\u89c0\u5730\u986f\u793a\u4ea4\u4e92\u7684\u9806\u5e8f\u3002<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/sequence-diagram-in-uml-diagram-hierarchy.png\" \/><\/p>\n<h2><span id=\"What_is_a_sequence_diagram\"><span>\u4ec0\u9ebc\u662f\u5e8f\u5217\u5716\uff1f<\/span><\/span><\/h2>\n<p><span>\u6642\u5e8f\u5716\uff0c\u53c8\u7a31\u6642\u5e8f\u5716\u3001\u6642\u5e8f\u5716\u6216\u6642\u5e8f\u5716\uff0c\u662f\u4e00\u7a2eUML\u4ea4\u4e92\u5716\u3002\u5b83\u901a\u904e\u63cf\u8ff0\u6d88\u606f\u5728\u5b83\u5011\u4e4b\u9593\u767c\u9001\u7684\u6642\u9593\u9806\u5e8f\u4f86\u986f\u793a\u591a\u500b\u5c0d\u8c61\u4e4b\u9593\u7684\u52d5\u614b\u5354\u4f5c\u3002<\/span><\/p>\n<p><span>\u5728 UML \u4e2d\uff0c\u5e8f\u5217\u5716\u4e2d\u7684\u5c0d\u50cf\u88ab\u7e6a\u88fd\u70ba\u5305\u542b\u5c0d\u8c61\u540d\u7a31\u7684\u77e9\u5f62\uff0c\u4e26\u5e36\u6709\u4e0b\u5283\u7dda\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u4e09\u7a2e\u65b9\u5f0f\u4e4b\u4e00\u547d\u540d\u5c0d\u8c61\uff1a\u5c0d\u8c61\u540d\u7a31\u3001\u5c0d\u8c61\u540d\u7a31\u53ca\u5176\u985e\uff0c\u6216\u50c5\u985e\u540d\u7a31\uff08\u533f\u540d\u5c0d\u8c61\uff09\u3002\u5c0d\u8c61\u7684\u4e09\u7a2e\u547d\u540d\u65b9\u5f0f\u5982\u4e0b\u5716\u6240\u793a\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13074\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/What-is-Sequence-Diagram.png\" alt=\"\" width=\"1045\" height=\"543\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/92698b4a-e5b4-488d-9e83-b8e517c366ea.xml&amp;name=Hotel%20Reservation\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h3><span id=\"The_Objects_of_Sequence_Diagram\"><span>\u6642\u5e8f\u5716\u7684\u5c0d\u8c61<\/span><\/span><\/h3>\n<ol>\n<li><span>\u986f\u793a\u5c0d\u8c61\u4e4b\u9593\u4ea4\u4e92\u7684\u9806\u5e8f\u3002\u5c07\u4ea4\u4e92\u884c\u70ba\u5efa\u6a21\u70ba\u6d88\u606f\u50b3\u905e\uff0c\u4e26\u901a\u904e\u63cf\u8ff0\u5c0d\u8c61\u4e4b\u9593\u5982\u4f55\u767c\u9001\u548c\u63a5\u6536\u6d88\u606f\u4f86\u52d5\u614b\u986f\u793a\u5c0d\u8c61\u4e4b\u9593\u7684\u4ea4\u4e92\u3002<\/span><\/li>\n<li><span>\u8207\u5176\u4ed6UML\u5716\u76f8\u6bd4\uff0c\u6642\u5e8f\u5716\u66f4\u5f37\u8abf\u4ea4\u4e92\u884c\u70ba\u7684\u6642\u9593\u9806\u5e8f\u3002<\/span><\/li>\n<li><span>\u5b83\u53ef\u4ee5\u5f62\u50cf\u5730\u63cf\u8ff0\u4e26\u767c\u7684\u904e\u7a0b\u3002<\/span><\/li>\n<\/ol>\n<h3><span id=\"The_Elements_of_Sequence_Diagram\"><span>\u5e8f\u5217\u5716\u7684\u5143\u7d20<\/span><\/span><\/h3>\n<p><span>1. Actor\u2014\u2014\u7cfb\u7d71\u53c3\u8207\u8005\uff0c\u53ef\u4ee5\u662f\u4eba\u3001\u6a5f\u5668\u3001\u5176\u4ed6\u7cfb\u7d71\u3001\u5b50\u7cfb\u7d71\uff1b\u7528\u65bc\u5728\u6642\u5e8f\u5716\u4e2d\u8868\u793a\u3002<\/span><\/p>\n<p><span>2. \u5c0d\u8c61\u2014\u2014\u5c0d\u8c61\u7684\u547d\u540d\u65b9\u5f0f\u6709\u4ee5\u4e0b\u4e09\u7a2e\uff1a<\/span><\/p>\n<ol>\n<li><span>\u5305\u62ec\u5c0d\u8c61\u540d\u548c\u985e\u540d\uff0c\u4f8b\u5982\uff1alive class:class\uff0c\u5728\u6642\u5e8f\u5716\u4e2d\uff0c\u5e36\u201cobject:class\u201d\u3002<\/span><\/li>\n<li><span>\u53ea\u986f\u793a\u985e\u540d\uff0c\u5373\u70ba\u533f\u540d\u5c0d\u8c61\uff0c\u4f8b\u5982\uff1a:course;\u00a0\u5728\u6642\u5e8f\u5716\u4e2d\uff0c\u5e36\u6709\u201c:class\u201d\u3002<\/span><\/li>\n<li><span>\u53ea\u986f\u793a\u5c0d\u8c61\u540d\uff0c\u4e0d\u986f\u793a\u985e\u540d\uff0ceg: lecturer;\u00a0\u5728\u6642\u5e8f\u5716\u4e2d\uff0c\u7528\u201cobject\u201d\u8868\u793a\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u4e09\u7a2e\u547d\u540d\u65b9\u5f0f\u4e00\u61c9\u4ff1\u5168\uff0c\u770b\u5e74\u8868\u7684\u4eba\u6700\u5bb9\u6613\u7406\u89e3\uff0c\u9078\u64c7\u54ea\u4e00\u7a2e\u3002<\/span><\/p>\n<p><span>3.\u5c0d\u8c61\u7684\u9806\u5e8f<\/span><\/p>\n<ul>\n<li><span>\u5c0d\u8c61\u7684\u5de6\u53f3\u9806\u5e8f\u4e26\u4e0d\u91cd\u8981\uff0c\u4f46\u70ba\u4e86\u4f7f\u5716\u8868\u6e05\u6670\u6574\u6f54\uff0c\u61c9\u9075\u5faa\u4ee5\u4e0b\u5169\u500b\u539f\u5247\uff1a \u4ea4\u4e92\u983b\u7e41\u7684\u5c0d\u8c61\u76e1\u53ef\u80fd\u9760\u8fd1\u653e\u7f6e\uff1b<\/span><\/li>\n<li><span>\u5c07\u521d\u59cb\u5316\u6574\u500b\u4ea4\u4e92\u6d3b\u52d5\u7684\u5c0d\u8c61\u653e\u5728\u6700\u5de6\u7aef\u3002<\/span><\/li>\n<\/ul>\n<h3><span id=\"Lifeline\"><span>\u751f\u547d\u7dda<\/span><\/span><\/h3>\n<p><span>\u6642\u5e8f\u5716\u4e2d\u5f9e\u5c0d\u50cf\u5716\u6a19\u5411\u4e0b\u5ef6\u4f38\u7684\u865b\u7dda\uff0c\u8868\u793a\u5c0d\u8c61\u5b58\u5728\u4e86\u591a\u9577\u6642\u9593\u3002<\/span><\/p>\n<ul>\n<li><strong><span>Focus of Control<\/span><\/strong><span>\uff08\u4e5f\u7a31\u70ba\u6fc0\u6d3b\u671f\uff09\u662f\u8868\u793a\u5c0d\u8c61\u5c07\u57f7\u884c\u76f8\u61c9\u64cd\u4f5c\u7684\u6642\u9593\u6bb5\u7684\u7b26\u865f\u3002\u5728C\u8a9e\u7fa9\u4e2d\u53ef\u4ee5\u89e3\u91cb\u70ba\u4e00\u5c0d\u62ec\u865f{}\uff1b\u7528\u4e00\u500b\u5c0f\u77e9\u5f62\u8868\u793a\u3002\u5b83\u8868\u793a\u5143\u7d20\u57f7\u884c\u64cd\u4f5c\u7684\u6642\u9593\u6bb5\u3002\u77e9\u5f62\u7684\u9802\u90e8\u548c\u5e95\u90e8\u5206\u5225\u8207\u958b\u59cb\u6642\u9593\u548c\u5b8c\u6210\u6642\u9593\u5c0d\u9f4a\u3002<\/span><\/li>\n<\/ul>\n<ul>\n<li><strong><span>\u6d88\u606f<\/span><\/strong><span>\u4e00\u822c\u5206\u70ba\u540c\u6b65\u6d88\u606f\u3001\u7570\u6b65\u6d88\u606f\u548c\u8fd4\u56de\u6d88\u606f\u3002<\/span><\/li>\n<\/ul>\n<p><strong><span>\u6ce8\u610f<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u7684\u767c\u9001\u8005\u5c07\u63a7\u5236\u50b3\u905e\u7d66\u6d88\u606f\u7684\u63a5\u6536\u8005\uff0c\u7136\u5f8c\u505c\u6b62\u6d3b\u52d5\u4e26\u7b49\u5f85\u6d88\u606f\u7684\u63a5\u6536\u8005\u653e\u68c4\u6216\u8fd4\u56de\u7528\u65bc\u6307\u793a\u540c\u6b65\u7684\u63a7\u5236\u3002<\/span><\/li>\n<\/ul>\n<ul>\n<li><span>\u6d88\u606f\u7684\u767c\u9001\u8005\u901a\u904e\u6d88\u606f\u5c07\u4fe1\u865f\u50b3\u905e\u7d66\u6d88\u606f\u7684\u63a5\u6536\u8005\uff0c\u7136\u5f8c\u7e7c\u7e8c\u5176\u6d3b\u52d5\uff0c\u800c\u7121\u9700\u7b49\u5f85\u63a5\u6536\u8005\u8fd4\u56de\u6d88\u606f\u6216\u63a7\u5236\u3002\u7570\u6b65\u6d88\u606f\u7684\u63a5\u6536\u8005\u548c\u767c\u9001\u8005\u540c\u6642\u5de5\u4f5c\u3002<\/span><\/li>\n<\/ul>\n<ul>\n<li><span>\u8fd4\u56de\u6d88\u606f\u8868\u793a\u5f9e\u904e\u7a0b\u8abf\u7528\u8fd4\u56de\u3002<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3 class=\"h3\"><span id=\"Creation_and_Destruction_Messages\"><span>\u5275\u5efa\u548c\u92b7\u6bc0\u6d88\u606f<\/span><\/span><\/h3>\n<p><span>\u53c3\u8207\u8005\u4e0d\u4e00\u5b9a\u5728\u5e8f\u5217\u5716\u4ea4\u4e92\u7684\u6574\u500b\u6301\u7e8c\u6642\u9593\u5167\u90fd\u5b58\u5728\u3002\u53ef\u4ee5\u6839\u64da\u50b3\u905e\u7684\u6d88\u606f\u5275\u5efa\u548c\u92b7\u6bc0\u53c3\u8207\u8005\u3002<\/span><\/p>\n<p><b><span>\u69cb\u9020\u51fd\u6578\u6d88\u606f<\/span><\/b><span>\u5275\u5efa\u5b83\u7684\u00a0\u00a0\u63a5\u6536\u8005\u3002\u5728\u4ea4\u4e92\u958b\u59cb\u6642\u5df2\u7d93\u5b58\u5728\u7684\u767c\u9001\u8005\u88ab\u653e\u7f6e\u5728\u5716\u8868\u7684\u9802\u90e8\u3002\u5728\u4ea4\u4e92\u904e\u7a0b\u4e2d\u901a\u904e\u69cb\u9020\u51fd\u6578\u8abf\u7528\u5275\u5efa\u7684\u76ee\u6a19\u6703\u81ea\u52d5\u653e\u7f6e\u5728\u5716\u8868\u7684\u66f4\u4e0b\u65b9\u3002<\/span><\/p>\n<p><b><span>\u6790\u69cb\u51fd\u6578\u6d88\u606f<\/span><\/b><span>\u92b7\u6bc0\u5b83\u7684\u00a0\u00a0\u63a5\u6536\u8005\u3002\u9084\u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u6307\u793a\u76ee\u6a19\u5728\u4ea4\u4e92\u904e\u7a0b\u4e2d\u88ab\u92b7\u6bc0\u3002\u53ea\u6709\u7576\u76ee\u6a19\u7684\u92b7\u6bc0\u8a2d\u7f6e\u70ba\u201c\u6790\u69cb\u51fd\u6578\u4e4b\u5f8c\u201d\u6642\uff0c\u60a8\u624d\u5fc5\u9808\u4f7f\u7528\u6790\u69cb\u51fd\u6578\u3002<\/span><\/p>\n<h3 class=\"h3\"><span id=\"Non_instantaneous_message\"><span>\u975e\u5373\u6642\u6d88\u606f<\/span><\/span><\/h3>\n<p><span>\u6d88\u606f\u901a\u5e38\u88ab\u8a8d\u70ba\u662f\u77ac\u6642\u7684\uff0c\u56e0\u6b64\u5230\u9054\u63a5\u6536\u8005\u6240\u9700\u7684\u6642\u9593\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8a08\u3002\u6d88\u606f\u7e6a\u88fd\u70ba\u6c34\u5e73\u7bad\u982d\u3002\u70ba\u4e86\u8868\u793a\u5728\u63a5\u6536\u8005\u5be6\u969b\u6536\u5230\u6d88\u606f\u4e4b\u524d\u9700\u8981\u4e00\u6bb5\u6642\u9593\uff0c\u4f7f\u7528\u4e86\u4e00\u500b\u00a0<\/span><b><span>\u50be\u659c\u7684\u7bad\u982d<\/span><\/b><span>\u3002<\/span><\/p>\n<h3><span id=\"Combination_fragments\"><span>\u7d44\u5408\u7247\u6bb5<\/span><\/span><\/h3>\n<p><span>\u5e8f\u5217\u7247\u6bb5\u8868\u793a\u70ba\u7a31\u70ba\u7d44\u5408\u7247\u6bb5\u7684\u6846\uff0c\u5b83\u5305\u542b\u5e8f\u5217\u5716\u4e2d\u4ea4\u4e92\u7684\u4e00\u90e8\u5206\u3002\u7247\u6bb5\u904b\u7b97\u7b26\uff08\u5728\u5de6\u4e0a\u89d2\uff09\u8868\u793a\u7247\u6bb5\u7684\u985e\u578b\u3002\u4ea4\u4e92\u5f0f\u7247\u6bb5\u5141\u8a31\u60a8\u5728\u5e8f\u5217\u5716\u4e2d\u5c0d\u76f8\u95dc\u6d88\u606f\u9032\u884c\u5206\u7d44\u3002\u63d0\u4f9b\u4e86\u5404\u7a2e\u9810\u5b9a\u7fa9\u7684\u7247\u6bb5\u985e\u578b\uff0c\u5141\u8a31\u60a8\u6307\u5b9a\u66ff\u4ee3\u7d50\u679c\u3001\u4e26\u884c\u6d88\u606f\u6216\u5faa\u74b0\u3002<\/span><\/p>\n<p><span>\u5e8f\u5217\u5716\u4e2d\u7684\u7247\u6bb5\u662f\u5728\u5716\u7684\u4e00\u90e8\u5206\u4e0a\u7e6a\u88fd\u7684\u77e9\u5f62\u6846\u3002\u5b83\u5011\u4ee3\u8868\u5f71\u97ff\u6d88\u606f\u6d41\u7684\u689d\u4ef6\u7d50\u69cb\u3002\u9019\u4e9b\u6846\u67b6\u5728 UML \u898f\u7bc4\u4e2d\u7a31\u70ba\u7d44\u5408\u7247\u6bb5\uff0c\u5bb9\u5668\u7a31\u70ba\u4ea4\u4e92\u64cd\u4f5c\u6578\u3002\u5e40\u6a19\u8a18\u5728\u5de6\u4e0a\u89d2\u3002\u6b64\u6a19\u7c64\u5728 UML \u4e2d\u7a31\u70ba\u4ea4\u4e92\u904b\u7b97\u7b26\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span id=\"Example_-_placing_an_order_scenario\"><span>\u793a\u4f8b\u2014\u2014\u4e0b\u8a02\u55ae\u5834\u666f<\/span><\/span><\/h3>\n<p><span>\u60f3\u5728\u7dda\u4e0b\u8a02\u55ae\u7684\u8239\u54e1\u3002\u8a02\u8cfc\u7684\u5546\u54c1\u5c07\u6839\u64da\u5979\u7684\u6703\u54e1\u8eab\u4efd\uff08VIP\u3001\u666e\u901a\u6703\u54e1\uff09\u901a\u904e\u5feb\u905e\u6216\u666e\u901a\u90f5\u4ef6\u767c\u9001\u7d66\u6703\u54e1\u3002\u5982\u679c\u6703\u54e1\u5728\u8a02\u55ae\u4e2d\u9078\u64c7\u901a\u77e5\u9078\u9805\uff0c\u5e97\u92ea\u5c07\u5411\u6703\u54e1\u767c\u9001\u78ba\u8a8d\u901a\u77e5\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13068 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Selection-and-Loops-in-a-Combination.png\" alt=\"\" width=\"823\" height=\"518\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/bb52d3d5-f881-4d3a-ab67-cad1858fa6d7.xml&amp;name=Selection%20and%20Loops%20in%20a%20Combination\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h3 class=\"h2\"><span id=\"Another_Example_Place_Order\"><span>\u53e6\u4e00\u500b\u4f8b\u5b50\uff1a\u4e0b\u8a02\u55ae<\/span><\/span><\/h3>\n<p><span>\u6642\u5e8f\u5716\u662f\u4e00\u500b\u4e8c\u7dad\u5716\uff0c\u6a6b\u8ef8\u4ee3\u8868\u5c0d\u8c61\uff0c\u7e31\u8ef8\u4ee3\u8868\u6642\u9593\uff0c\u6d88\u606f\u5728\u5c0d\u8c61\u4e4b\u9593\u6a6b\u5411\u50b3\u905e\uff0c\u7e31\u5411\u6309\u6642\u9593\u9806\u5e8f\u6392\u5217\u3002\u8a72\u793a\u4f8b\u986f\u793a\u4e86\u4e00\u500b\u5305\u542b\u4e09\u500b\u53c3\u8207\u5c0d\u8c61\u7684\u5e8f\u5217\u5716\uff1a\u5ba2\u6236\u3001\u8a02\u55ae\u548c\u5eab\u5b58\u3002\u751a\u81f3\u4e0d\u9700\u8981\u6b63\u5f0f\u5730\u4e86\u89e3\u7b26\u865f\uff0c\u60a8\u5c31\u53ef\u80fd\u5c0d\u6b63\u5728\u767c\u751f\u7684\u4e8b\u60c5\u6709\u4e00\u500b\u5f88\u597d\u7684\u4e86\u89e3\u3002<\/span><\/p>\n<ol class=\"contentPoint\">\n<li><span>\u7b2c 1 \u6b65\u548c\u7b2c 2 \u6b65\uff1a\u5ba2\u6236\u5275\u5efa\u8a02\u55ae\u3002<\/span><\/li>\n<li><span>\u7b2c 3 \u6b65\uff1a\u5ba2\u6236\u5c07\u5546\u54c1\u6dfb\u52a0\u5230\u8a02\u55ae\u4e2d\u3002<\/span><\/li>\n<li><span>\u7b2c 4 \u6b65\u3001\u7b2c 5 \u6b65\uff1a\u6aa2\u67e5\u6bcf\u500b\u9805\u76ee\u7684\u5eab\u5b58\u53ef\u7528\u6027\u3002<\/span><\/li>\n<li><span>\u7b2c 6\u30017\u30018 \u6b65\uff1a\u5982\u679c\u7522\u54c1\u53ef\u7528\uff0c\u5247\u5c07\u5176\u6dfb\u52a0\u5230\u8a02\u55ae\u4e2d\u3002<\/span><\/li>\n<li><span>\u7b2c\u4e5d\u6b65\u8fd4\u56de<\/span><\/li>\n<li><span>Step 10, 11: \u4fdd\u5b58\u4e26\u92b7\u6bc0\u8a02\u55ae<\/span><\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13091 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Place-Order.png\" alt=\"\" width=\"696\" height=\"628\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/b33b10cc-e1b2-490a-883b-c23eed9ca6b7.xml&amp;name=Place%20Order\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"YVfQmfd\"><span id=\"Commonly_used_combination_fragments\"><span>\u5e38\u7528\u7d44\u5408\u7247\u6bb5<\/span><\/span><\/h3>\n<p><span>\u7247\u6bb5\u985e\u578b\u5305\u62ec ref\u3001assert\u3001loop\u3001break\u3001alt\u3001opt \u548c neg\u3001ref\u3001sd\u3002<\/span><\/p>\n<table border=\"1\">\n<tbody>\n<tr>\n<td width=\"150\"><b><span>\u64cd\u4f5c\u54e1<\/span><\/b><\/td>\n<td><b><span>\u610f\u7fa9<\/span><\/b><\/td>\n<\/tr>\n<tr>\n<td><span>\u66ff\u4ee3<\/span><\/td>\n<td><b><span>\u53ef\u9078\u7684\u591a\u500b\u7247\u6bb5\uff1a\u53ea\u6709\u689d\u4ef6\u70ba\u771f\u7684\u7247\u6bb5\u624d\u6703\u57f7\u884c\u3002<\/span><\/b><\/td>\n<\/tr>\n<tr>\n<td><span>\u9078\u64c7<\/span><\/td>\n<td><b><span>\u53ef\u9078<\/span><\/b><span>\uff1a\u7247\u6bb5\u50c5\u5728\u63d0\u4f9b\u7684\u689d\u4ef6\u70ba\u771f\u6642\u57f7\u884c\u3002\u76f8\u7576\u65bc\u53ea\u6709\u4e00\u689d\u75d5\u8e5f\u7684 alt\u3002<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u6a19\u6e96\u687f<\/span><\/td>\n<td><b><span>\u4e26\u884c<\/span><\/b><span>\uff1a\u6bcf\u500b\u7247\u6bb5\u4e26\u884c\u904b\u884c\u3002<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u74b0\u5f62<\/span><\/td>\n<td><b><span>Loop<\/span><\/b><span>\uff1a\u7247\u6bb5\u53ef\u80fd\u6703\u57f7\u884c\u591a\u6b21\uff0c\u5b88\u885b\u8868\u793a\u8fed\u4ee3\u7684\u57fa\u790e\u3002<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u6279\u5224\u7684<\/span><\/td>\n<td><b><span>\u81e8\u754c\u5340<\/span><\/b><span>\uff1a\u7247\u6bb5\u4e00\u6b21\u53ea\u80fd\u6709\u4e00\u500b\u7dda\u7a0b\u57f7\u884c\u3002<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u5426\u5b9a<\/span><\/td>\n<td><b><span>\u5426\u5b9a<\/span><\/b><span>\uff1a\u7247\u6bb5\u986f\u793a\u7121\u6548\u4ea4\u4e92\u3002<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u53c3\u8003<\/span><\/td>\n<td><b><span>\u53c3\u8003<\/span><\/b><span>\uff1a\u6307\u7684\u662f\u5728\u53e6\u4e00\u500b\u5716\u4e0a\u5b9a\u7fa9\u7684\u4ea4\u4e92\u3002\u7e6a\u88fd\u6846\u67b6\u4ee5\u8986\u84cb\u4ea4\u4e92\u4e2d\u6d89\u53ca\u7684\u751f\u547d\u7dda\u3002\u60a8\u53ef\u4ee5\u5b9a\u7fa9\u53c3\u6578\u548c\u8fd4\u56de\u503c\u3002<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u6a19\u6e96\u5dee<\/span><\/td>\n<td><b><span>\u6642\u5e8f\u5716<\/span><\/b><span>\uff1a\u7528\u65bc\u5305\u570d\u6574\u500b\u6642\u5e8f\u5716\u3002<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span>\u6ce8\u610f\uff1a<\/span><\/p>\n<ul>\n<li><span>\u53ef\u4ee5\u7d44\u5408\u5e40\u4ee5\u6355\u7372\u4f8b\u5982\u5faa\u74b0\u6216\u5206\u652f\u3002<\/span><\/li>\n<li><strong><span>\u7d44\u5408\u7247\u6bb5<\/span><\/strong><span>\u00a0\u95dc\u9375\u5b57\uff1aalt\u3001opt\u3001break\u3001par\u3001seq\u3001strict\u3001neg\u3001critical\u3001ignore\u3001consider\u3001assert \u548c loop\u3002<\/span><\/li>\n<li><span>\u7d04\u675f\u901a\u5e38\u7528\u65bc\u986f\u793a\u5c0d\u6d88\u606f\u7684\u6642\u9593\u7d04\u675f\u3002\u5b83\u5011\u53ef\u4ee5\u61c9\u7528\u65bc\u4e00\u689d\u6d88\u606f\u7684\u6642\u9593\u6216\u6d88\u606f\u4e4b\u9593\u7684\u9593\u9694\u3002<\/span><\/li>\n<\/ul>\n<h3><span id=\"Examples_of_Combined_Fragments\"><span>\u7d44\u5408\u7247\u6bb5\u7684\u4f8b\u5b50<\/span><\/span><\/h3>\n<p><span>(1) Choice (Alt) \u2013 Alternative fragment \u63d0\u4f9b\u4e86\u5e7e\u500b\u53d7\u4fdd\u8b77\u7684alternative fragments\uff08\u4ee5\u4ea4\u4e92\u64cd\u4f5c\u6578\u5206\u9694\uff09\uff0c\u5373\u7528\u65bc\u6307\u5b9a\u5169\u500b\u6216\u591a\u500b\u6d88\u606f\u5e8f\u5217\u4e4b\u9593\u7684\u4e92\u65a5\u9078\u64c7\uff0c\u7b49\u540c\u65bc\u7d93\u5178\u7684if..else&#8230;\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13093 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/The-use-of-Choice-in-Sequence-Diagram.png\" alt=\"\" width=\"662\" height=\"502\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/16a62028-6ba3-49ec-a803-7ee1b610a1c5.xml&amp;name=Sequence%20Diagram%20Example%3A%20ATM\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p><span>(2) \u9078\u9805 (Opt) \u2013 \u5305\u542b\u53ef\u80fd\u51fa\u73fe\u6216\u4e0d\u51fa\u73fe\u7684\u5e8f\u5217\uff0c\u9019\u610f\u5473\u8457\u53ef\u9078\u7247\u6bb5\u50c5\u5728\u67d0\u4e9b\u4fdd\u8b77\u689d\u4ef6\u70ba\u771f\u6642\u624d\u57f7\u884c\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13095 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Use-of-Option-in-a-Sequence-Diagram.png\" alt=\"\" width=\"505\" height=\"396\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/28feb8b6-2373-4886-ba54-d51b68406ebb.xml&amp;name=Sequence%20Diagram%20Example%3A%20Examination\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"lSOROyw\"><span>(3) \u5faa\u74b0 (Loop) \u2013 \u5faa\u74b0\u5141\u8a31\u91cd\u8907\u7247\u6bb5\uff0c\u76f4\u5230\u67d0\u4e9b\u4fdd\u8b77\u689d\u4ef6\u8b8a\u70ba\u5047\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13097 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Use-of-Loop-in-a-Sequence-Diagram.png\" alt=\"\" width=\"542\" height=\"401\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/71b4b136-ce44-4517-a0d7-6d14d89bb0e0.xml&amp;name=Sequence%20Diagram%3A%20Synthesizer%20and%20Score\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h4><span id=\"Break\"><span>\u4f11\u606f<\/span><\/span><\/h4>\n<p><span>break \u5141\u8a31\u5728\u67d0\u4e9b\u5b88\u885b\u8b8a\u70ba\u771f\u6642\u8f49\u7fa9\u5c01\u9589\u5faa\u74b0\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13098 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Use-of-Break-in-a-Sequence-Diagram.png\" alt=\"\" width=\"743\" height=\"614\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/e2d7509e-b732-433e-8cdf-07f5ec42a10f.xml&amp;name=Break%20Communication%20Fragment\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"mRBYeao\"><span>\u4e2d\u65b7\u6700\u5e38\u7528\u65bc\u6a21\u64ec\u7570\u5e38\u8655\u7406\u3002\u6b64\u5e8f\u5217\u5716\u793a\u4f8b\u4f7f\u7528\u4e2d\u65b7\u7d44\u5408\u7247\u6bb5\uff0c\u56e0\u70ba\u5b83\u5c07 balance &lt; amount \u689d\u4ef6\u8996\u70ba\u7570\u5e38\u800c\u4e0d\u662f\u66ff\u4ee3\u6d41\u3002\u8981\u95b1\u8b80\u6b64\u793a\u4f8b\uff0c\u6211\u5011\u5f9e\u5e8f\u5217\u7684\u5de6\u4e0a\u89d2\u958b\u59cb\u5411\u4e0b\u95b1\u8b80\u3002\u7576\u5e8f\u5217\u5230\u9054\u8fd4\u56de\u503c\u201c\u9918\u984d\u201d\u6642\uff0c\u5b83\u6703\u6aa2\u67e5\u9918\u984d\u662f\u5426\u5c0f\u65bc\u91d1\u984d\u3002\u5982\u679c\u9918\u984d\u4e0d\u5c11\u65bc\u91d1\u984d\uff0c\u5247\u767c\u9001\u7684\u4e0b\u4e00\u689d\u6d88\u606f\u662f addDebitTransaction \u6d88\u606f\uff0c\u4e26\u4e14\u5e8f\u5217\u7167\u5e38\u7e7c\u7e8c\u3002<\/span><\/p>\n<h4><span id=\"Parallel\"><span>\u5e73\u884c<\/span><\/span><\/h4>\n<p><span>\u4e26\u884c\u7247\u6bb5\u5141\u8a31\u591a\u500b\u4ea4\u4e92\u4e26\u884c\u904b\u884c\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13099 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Use-of-Parallel-in-a-Sequence-Diagram.png\" alt=\"\" width=\"666\" height=\"412\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/3a8c69c5-b007-4e03-a100-cc8d71e0a994.xml&amp;name=Sequence%20Diagram%20Client%20and%20Server%20Parallel%20Call%20Example\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h3><span id=\"Frames\"><span>\u76f8\u6846<\/span><\/span><\/h3>\n<p><span>\u6846\u67b6\u63d0\u4f9b\u4e86\u4e00\u7a2e\u5c01\u88dd\u5e8f\u5217\u5716\u7684\u65b9\u6cd5\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13100 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Use-of-Frame-in-a-Sequence-Diagram.png\" alt=\"\" width=\"714\" height=\"536\" \/><\/p>\n<p><a id=\"tinymce\" class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/29f41692-dca8-4ad7-af5a-bb32201c2a4c.xml&amp;name=Sequence%20Diagram%3A%20ATM%20Transferal\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h3><span id=\"Reference_Ref\"><span>\u53c3\u8003 (Ref)<\/span><\/span><\/h3>\n<p><span>\u4e00\u500b\u5e40\u53ef\u4ee5\u5728\u53e6\u4e00\u500b\u5e8f\u5217\u5716\u4e2d\u88ab\u5f15\u7528\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13101 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/An-example-of-Interaction-Use.png\" alt=\"\" width=\"1074\" height=\"670\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/193ba62c-e5b5-4418-a58f-5bc82e0a9f40.xml&amp;name=Sequence%20Diagram%20Interaction%20Use%20Example\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h3 id=\"USZxdap\"><span id=\"Protocols\"><span>\u5354\u8b70<\/span><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13108 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Sequence-diagram-example.png\" alt=\"\" width=\"849\" height=\"706\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/ee2dee36-0056-4f6c-af39-ddfc67fd406d.xml&amp;name=Sequence%20Diagram%3A%20Supplier%20Selection\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"xHMmuEb\"><span>\u5408\u4f5c<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13111 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Sequence-diagram-Collaboration.png\" alt=\"\" width=\"582\" height=\"334\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/e874dc96-54b9-4d6f-8889-5643ef2ca680.xml&amp;name=Sequence%20Diagram%3A%20Collaborations\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"lekOtOh\"><span>\u5834\u666f<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13113 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Sequence-diagram-Scenarios.png\" alt=\"\" width=\"492\" height=\"314\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/4ec4943a-84ee-4fbe-a6d9-c8d6832418df.xml&amp;name=Sequence%20Diagram%20Example%3A%20File%20Controller\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"BVGUceg\"><span>\u4fe1\u865f\u548c\u63a5\u6536<\/span><\/p>\n<p><span>\u62cd\u8ce3\u5e2b\u5411\u64c1\u64e0\u7684\u623f\u9593\u88e1\u7126\u6025\u7684\u7af6\u6a19\u8005\u5ee3\u64ad\u4e00\u4ef6\u7269\u54c1\u7684\u5efa\u8b70\u50f9\u683c\u3002\u7576\u6295\u6a19\u4eba\u807d\u5230\u5efa\u8b70\u6642\uff0c\u4ed6\u6c7a\u5b9a\u63a5\u53d7\u6216\u4e0d\u63a5\u53d7\u8a72\u50f9\u683c\u3002<\/span><\/p>\n<p><span>\u5728\u81ea\u52d5\u62cd\u8ce3\u4e2d\uff0c\u62cd\u8ce3\u5e2b\u5c07\u5982\u4f55\u5ee3\u64ad\u63d0\u6848\uff1f\u5982\u679c\u63a5\u6536\u5230\u67d0\u4e9b\u985e\u578b\u7684\u5ee3\u64ad\u4fe1\u865f\uff0c\u5c0d\u8c61\u53ef\u80fd\u5177\u6709\u61c9\u81ea\u52d5\u8abf\u7528\u7684\u6307\u5b9a\u64cd\u4f5c\u3002\u9019\u4e9b\u65b9\u6cd5\u7a31\u70ba\u63a5\u6536\u3002\u4fe1\u865f\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u985e\u3002\u63a5\u6536\u540d\u7a31\u901a\u5e38\u8207\u4fe1\u865f\u540d\u7a31\u76f8\u5339\u914d\u3002\u63a5\u5f85\u8655\u986f\u793a\u5728\u4e00\u500b\u55ae\u7368\u7684\u9694\u9593\u4e2d\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13127 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Auctioneer-sequence-diagram-example.png\" alt=\"\" width=\"441\" height=\"155\" \/><\/p>\n<p><a id=\"tinymce\" class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=ClassDiagram&amp;gallery=\/repository\/649527aa-65ff-4010-a55e-19c1741d3f90.xml&amp;name=Class%20Diagram%3A%20Auctioneer%20and%20Bidder\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"PvFbdNS\"><span>\u5728\u5e8f\u5217\u5716\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u5c07\u4fe1\u865f\u8868\u793a\u70ba\u7570\u6b65\u4fe1\u865f\uff0c\u5c07\u63a5\u6536\u8868\u793a\u70ba\u63a5\u6536\u8abf\u7528\uff1a<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13129 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Sequence-diagram-Recursive-message.png\" alt=\"\" width=\"583\" height=\"374\" \/><\/p>\n<p><a id=\"tinymce\" class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/b34d0a63-1bef-455d-8667-e517b7dc000f.xml&amp;name=Sequence%20Diagram%20Example%3A%20Auctioneer%20and%20Bidder\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<p id=\"xYhPHzn\"><span>\u6279\u5224\u7684<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13130 aligncenter\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/02\/Sequence-diagram-Critical.png\" alt=\"\" width=\"773\" height=\"566\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SequenceDiagram&amp;gallery=\/repository\/9f1e012a-e8fa-4cbd-a3bb-b0afcd2aaf98.xml&amp;name=Sequence%20Diagram%3A%20Critical\"><span>\u7de8\u8f2f\u6b64\u5e8f\u5217\u5716<\/span><\/a><\/p>\n<h4><span id=\"Other_Fragment_Types\"><span>\u5176\u4ed6\u7247\u6bb5\u985e\u578b<\/span><\/span><\/h4>\n<ul>\n<li><span>\u56b4\u683c\u7684<\/span><\/li>\n<li><span>\u65b7\u8a00<\/span><\/li>\n<li><span>\u8003\u616e<\/span><\/li>\n<li><span>\u5ffd\u8996<\/span><\/li>\n<li><span>\u5730\u5340<\/span><\/li>\n<li><span>\u5426\u5b9a<\/span><\/li>\n<\/ul>\n<h3><span id=\"Sequence_Diagram_Notation_Summary\"><span>\u5e8f\u5217\u5716\u7b26\u865f\u7e3d\u7d50<\/span><\/span><\/h3>\n<div class=\"editions\">\n<table class=\"stack\" width=\"1212\">\n<tbody>\n<tr>\n<th><span>\u7b26\u865f\u8aaa\u660e<\/span><\/th>\n<th width=\"250\"><span>\u8996\u89ba\u8868\u73fe<\/span><\/th>\n<\/tr>\n<tr>\n<td><strong><span>\u6f14\u54e1<\/span><\/strong><\/p>\n<ul>\n<li><span>\u8207\u4e3b\u9ad4\u4ea4\u4e92\u7684\u5be6\u9ad4\u6240\u626e\u6f14\u7684\u4e00\u7a2e\u89d2\u8272\uff08\u4f8b\u5982\uff0c\u901a\u904e\u4ea4\u63db\u4fe1\u865f\u548c\u6578\u64da\uff09<\/span><\/li>\n<li><span>\u5728\u4e3b\u9ad4\u4e4b\u5916\uff08\u5373\uff0c\u5728\u67d0\u7a2e\u610f\u7fa9\u4e0a\uff0c\u53c3\u8207\u8005\u7684\u5be6\u4f8b\u4e0d\u662f\u5176\u5c0d\u61c9\u4e3b\u9ad4\u5be6\u4f8b\u7684\u4e00\u90e8\u5206\uff09\u3002<\/span><\/li>\n<li><span>\u4ee3\u8868\u4eba\u985e\u7528\u6236\u3001\u5916\u90e8\u786c\u4ef6\u6216\u5176\u4ed6\u4e3b\u9ad4\u626e\u6f14\u7684\u89d2\u8272\u3002<\/span><\/li>\n<\/ul>\n<p><span>\u6ce8\u610f\uff1a<\/span><\/p>\n<ul>\n<li><span>\u6f14\u54e1\u4e0d\u4e00\u5b9a\u4ee3\u8868\u7279\u5b9a\u7684\u7269\u7406\u5be6\u9ad4\uff0c\u800c\u53ea\u662f\u67d0\u500b\u5be6\u9ad4\u7684\u7279\u5b9a\u89d2\u8272<\/span><\/li>\n<li><span>\u4e00\u500b\u4eba\u53ef\u4ee5\u626e\u6f14\u5e7e\u500b\u4e0d\u540c\u6f14\u54e1\u7684\u89d2\u8272\uff0c\u53cd\u4e4b\uff0c\u4e00\u500b\u7d66\u5b9a\u7684\u6f14\u54e1\u53ef\u4ee5\u7531\u591a\u500b\u4e0d\u540c\u7684\u4eba\u626e\u6f14\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-2\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/03-sequence-diagram-actor-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1aActor \u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u751f\u547d\u7dda<\/span><\/strong><\/p>\n<ul>\n<li><span>\u751f\u547d\u7dda\u4ee3\u8868\u4ea4\u4e92\u4e2d\u7684\u55ae\u500b\u53c3\u8207\u8005\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-3\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/04-sequence-diagram-activation-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u6fc0\u6d3b\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u6fc0\u6d3b<\/span><\/strong><\/p>\n<ul>\n<li><span>\u751f\u547d\u7dda\u4e0a\u7684\u7d30\u77e9\u5f62\uff09\u8868\u793a\u5143\u7d20\u57f7\u884c\u64cd\u4f5c\u7684\u6642\u9593\u6bb5\u3002<\/span><\/li>\n<li><span>\u77e9\u5f62\u7684\u9802\u90e8\u548c\u5e95\u90e8\u5206\u5225\u8207\u958b\u59cb\u6642\u9593\u548c\u5b8c\u6210\u6642\u9593\u5c0d\u9f4a<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-6\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/04-sequence-diagram-activation-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u6fc0\u6d3b\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u4f86\u96fb\u7559\u8a00<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>\u8abf\u7528\u6d88\u606f\u662f\u4e00\u7a2e\u8868\u793a\u8abf\u7528\u76ee\u6a19\u751f\u547d\u7dda\u64cd\u4f5c\u7684\u6d88\u606f\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-4\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/05-sequence-diagram-call-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u8abf\u7528\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u8fd4\u56de\u6d88\u606f<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>\u8fd4\u56de\u6d88\u606f\u662f\u4e00\u7a2e\u6d88\u606f\uff0c\u8868\u793a\u5c07\u4fe1\u606f\u8fd4\u56de\u7d66\u76f8\u61c9\u7684\u5148\u524d\u6d88\u606f\u7684\u8abf\u7528\u8005\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-5\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/06-sequence-diagram-return-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u8fd4\u56de\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u81ea\u6211\u7559\u8a00<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>Self message\u662f\u4e00\u7a2e\u6d88\u606f\uff0c\u4ee3\u8868\u8abf\u7528\u540c\u4e00\u751f\u547d\u7dda\u7684\u6d88\u606f\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-7\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/07-sequence-diagram-self-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u81ea\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u905e\u6b78\u6d88\u606f<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>\u905e\u6b78\u6d88\u606f\u662f\u4e00\u7a2e\u4ee3\u8868\u540c\u4e00\u751f\u547d\u7dda\u6d88\u606f\u8abf\u7528\u7684\u6d88\u606f\u3002\u5b83\u7684\u76ee\u6a19\u6307\u5411\u5728\u8abf\u7528\u6d88\u606f\u7684\u6fc0\u6d3b\u4e4b\u4e0a\u7684\u6fc0\u6d3b\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-8\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/08-sequence-diagram-recursive-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u905e\u6b78\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u5275\u5efa\u6d88\u606f<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>\u5275\u5efa\u6d88\u606f\u662f\u4e00\u7a2e\u4ee3\u8868\uff08\u76ee\u6a19\uff09\u751f\u547d\u7dda\u5be6\u4f8b\u5316\u7684\u6d88\u606f\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-9\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/09-sequence-diagram-create-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u5275\u5efa\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u92b7\u6bc0\u6d88\u606f<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>\u92b7\u6bc0\u6d88\u606f\u662f\u4e00\u7a2e\u6d88\u606f\uff0c\u4ee3\u8868\u4e86\u92b7\u6bc0\u76ee\u6a19\u751f\u547d\u7dda\u751f\u547d\u9031\u671f\u7684\u8acb\u6c42\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-10\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/10-sequence-diagram-destroy-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u92b7\u6bc0\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u6301\u7e8c\u6642\u9593\u6d88\u606f<\/span><\/strong><\/p>\n<ul>\n<li><span>\u6d88\u606f\u5b9a\u7fa9\u4e86\u4ea4\u4e92\u751f\u547d\u7dda\u4e4b\u9593\u7684\u7279\u5b9a\u901a\u4fe1\u3002<\/span><\/li>\n<li><span>\u6301\u7e8c\u6642\u9593\u6d88\u606f\u986f\u793a\u6d88\u606f\u8abf\u7528\u7684\u5169\u500b\u6642\u523b\u4e4b\u9593\u7684\u8ddd\u96e2\u3002<\/span><\/li>\n<\/ul>\n<\/td>\n<td><img decoding=\"async\" id=\"thepasted-11\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/11-sequence-diagram-duration-message-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u6301\u7e8c\u6642\u9593\u6d88\u606f\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<tr>\n<td><strong><span>\u7b46\u8a18<\/span><\/strong><span>\u8a3b\u91cb\uff08\u8a3b\u91cb\uff09\u63d0\u4f9b\u4e86\u5c07\u5404\u7a2e\u8a3b\u91cb\u9644\u52a0\u5230\u5143\u7d20\u7684\u80fd\u529b\u3002\u8a3b\u91cb\u4e0d\u5177\u6709\u8a9e\u7fa9\u4f5c\u7528\uff0c\u4f46\u53ef\u80fd\u5305\u542b\u5c0d\u5efa\u6a21\u8005\u6709\u7528\u7684\u4fe1\u606f\u3002<\/span><\/td>\n<td><img decoding=\"async\" id=\"thepasted-14\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/12-sequence-diagram-note-symbol.png\" alt=\"UML \u5e8f\u5217\u5716\uff1a\u8a3b\u91cb\u793a\u4f8b\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>UML\u00a0Sequence Diagrams are interaction diagrams that detail how operations are carried out. They capture the interaction between objects in the context of a collaboration. 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