{"id":9549,"date":"2025-12-03T15:01:27","date_gmt":"2025-12-03T07:01:27","guid":{"rendered":"https:\/\/www.cybermedian.com\/cn\/uml-activity-diagram-modeling-sequential-and-concurrent-system-flow\/"},"modified":"2026-04-14T10:57:30","modified_gmt":"2026-04-14T10:57:30","slug":"uml-activity-diagram-modeling-sequential-and-concurrent-system-flow","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/cn\/uml-activity-diagram-modeling-sequential-and-concurrent-system-flow\/","title":{"rendered":"UML\u6d3b\u52a8\u56fe\uff1a\u5efa\u6a21\u987a\u5e8f\u548c\u5e76\u53d1\u7cfb\u7edf\u6d41\u7a0b"},"content":{"rendered":"<p>\u8be5<a href=\"https:\/\/chat.visual-paradigm.com\/diagram\/uml-activity-diagram\/\">UML\u6d3b\u52a8\u56fe<\/a>\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u6d41\u7a0b\u56fe\uff0c\u7528\u4e8e\u5efa\u6a21\u6d41\u7a0b\u7684\u987a\u5e8f\u548c\u5e76\u53d1\u6b65\u9aa4\u6216\u6d3b\u52a8\u3002\u5b83\u7528\u4e8e\u63cf\u8ff0\u7cfb\u7edf\u7684\u52a8\u6001\u65b9\u9762\uff0c\u91cd\u70b9\u5173\u6ce8\u4ece\u4e00\u4e2a\u6d3b\u52a8\u5230\u4e0b\u4e00\u4e2a\u6d3b\u52a8\u7684\u63a7\u5236\u6d41\u3002<\/p>\n<p>\u8be5\u56fe\u5bf9\u4e8e\u5efa\u6a21\u4e1a\u52a1\u6d41\u7a0b\u3001\u5b9a\u4e49\u4e0d\u540c\u7ec4\u4ef6\u4e4b\u95f4\u7684\u5de5\u4f5c\u6d41\u4ee5\u53ca\u8bb0\u5f55\u7cfb\u7edf\u6216\u65b9\u6cd5\u7684\u5185\u90e8\u903b\u8f91\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/repository\/images\/0906ba8d-8066-4ef9-9059-d353c21f6c2c\/activity-diagram-design\/uml-activity-diagram-example-article-submission.png\"\/><\/p>\n<h2>\u6d3b\u52a8\u6d41\u7684\u6838\u5fc3\u5143\u7d20<\/h2>\n<p>\u6d3b\u52a8\u56fe\u57fa\u4e8e\u8282\u70b9\uff08\u8868\u793a\u6b65\u9aa4\uff09\u548c\u8fb9\uff08\u8868\u793a\u63a7\u5236\u6d41\uff09\u6784\u5efa\u3002<\/p>\n<h3>A. \u6d3b\u52a8\u4e0e\u64cd\u4f5c\u8282\u70b9<\/h3>\n<p>\u5b83\u4eec\u8868\u793a\u6d41\u7a0b\u4e2d\u7684\u4e00\u4e2a\u6b65\u9aa4\u6216\u4efb\u52a1\u3002<\/p>\n<p><img alt=\"\" class=\"alignnone size-full wp-image-14474\" decoding=\"async\" height=\"289\" loading=\"lazy\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Activity-and-Action-Nodes.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Activity-and-Action-Nodes.png 432w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Activity-and-Action-Nodes-300x201.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Activity-and-Action-Nodes-120x80.png 120w\" width=\"432\"\/><\/p>\n<ul>\n<li><strong>\u7b26\u53f7\u8868\u793a\uff1a<\/strong> \u4e00\u4e2a\u5706\u89d2\u77e9\u5f62\u3002<\/li>\n<li><strong>\u64cd\u4f5c\u8282\u70b9\uff1a<\/strong> \u8868\u793a\u4e00\u4e2a\u539f\u5b50\u4e14\u4e0d\u53ef\u4e2d\u65ad\u7684\u6b65\u9aa4\uff08\u4f8b\u5982\uff0c<em>\u68c0\u67e5\u5e93\u5b58<\/em>).<\/li>\n<li><strong>\u6d3b\u52a8\u8282\u70b9\uff1a<\/strong> \u8868\u793a\u4e00\u4e2a\u9ad8\u5c42\u6b21\u76ee\u6807\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5206\u89e3\u4e3a\u5b50\u6d3b\u52a8\uff08\u4f8b\u5982\uff0c<em>\u5b8c\u6210\u8ba2\u5355<\/em>).<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u7528\u4e8e\u5b9a\u4e49\u9700\u8981\u6267\u884c\u7684\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n<h3>B. \u63a7\u5236\u6d41\uff08\u8fb9\uff09<\/h3>\n<p>\u63a7\u5236\u6d41\u662f\u8fde\u63a5\u4e24\u4e2a\u8282\u70b9\u7684\u7bad\u5934\uff0c\u8868\u793a\u4ece\u4e00\u4e2a\u64cd\u4f5c\u5230\u4e0b\u4e00\u4e2a\u64cd\u4f5c\u7684\u8f6c\u6362\u3002<\/p>\n<p><img alt=\"\" class=\"alignnone size-full wp-image-14475\" decoding=\"async\" height=\"233\" loading=\"lazy\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Control-Flow-Edgesv2.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Control-Flow-Edgesv2.png 432w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/activity-diagram-Control-Flow-Edgesv2-300x162.png 300w\" width=\"432\"\/><\/p>\n<ul>\n<li><strong>\u7b26\u53f7\u8868\u793a\uff1a<\/strong> \u4e00\u6761\u5b9e\u5fc3\u7bad\u5934\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u8868\u793a\u6267\u884c\u987a\u5e8f\u3002<\/li>\n<\/ul>\n<h3>C. \u5f00\u59cb\u548c\u7ed3\u675f\u8282\u70b9<\/h3>\n<p>\u6bcf\u4e2a\u56fe\u90fd\u5fc5\u987b\u6709\u4e00\u4e2a\u8d77\u59cb\u70b9\u548c\u4e00\u4e2a\u6216\u591a\u4e2a\u7ed3\u675f\u70b9\u3002<\/p>\n<p><img alt=\"\" class=\"alignnone size-full wp-image-14472\" decoding=\"async\" height=\"217\" loading=\"lazy\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Start-and-End-Nodes.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Start-and-End-Nodes.png 640w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Start-and-End-Nodes-300x102.png 300w\" width=\"640\"\/><\/p>\n<ul>\n<li><strong>\u521d\u59cb\u8282\u70b9\uff08\u5f00\u59cb\uff09\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong>\u4e00\u4e2a\u5b9e\u5fc3\u586b\u5145\u7684\u5706\u5708\u3002<\/li>\n<li><strong>\u7528\u9014\uff1a<\/strong>\u63a7\u5236\u6d41\u7684\u5165\u53e3\u70b9\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6d3b\u52a8\u6700\u7ec8\u8282\u70b9\uff08\u7ed3\u675f\uff09\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong>\u4e00\u4e2a\u88ab\u8f83\u5927\u7a7a\u5fc3\u5706\u5305\u56f4\u7684\u5b9e\u5fc3\u5706\u3002<\/li>\n<li><strong>\u7528\u9014\uff1a<\/strong>\u8868\u793a\u6d3b\u52a8\u5185\u6240\u6709\u6d41\u7a0b\u7684\u5b8c\u6210\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6d41\u7a0b\u6700\u7ec8\u8282\u70b9\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong>\u4e00\u4e2a\u5185\u90e8\u5e26\u6709\u2018X\u2019\u7684\u5706\u5708\u3002<\/li>\n<li><strong>\u7528\u9014\uff1a<\/strong>\u8868\u793a\u7279\u5b9a\u8def\u5f84\uff08\u6d41\u7a0b\uff09\u7684\u7ed3\u675f\uff0c\u4f46<strong>\u5e76\u4e0d<\/strong>\u4e00\u5b9a\u4e0d\u4f1a\u7ec8\u6b62\u6574\u4e2a\u6d3b\u52a8\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u5efa\u6a21\u51b3\u7b56\u4e0e\u5206\u652f\u903b\u8f91<\/h2>\n<p>\u6d3b\u52a8\u56fe\u4f7f\u7528\u7279\u5b9a\u8282\u70b9\u6765\u5904\u7406\u6761\u4ef6\u903b\u8f91\uff0c\u7c7b\u4f3c\u4e8e\u4ee3\u7801\u4e2d\u7684<code>if-else<\/code>\u6216<code>switch<\/code>\u8bed\u53e5\u3002<\/p>\n<h3>A. \u51b3\u7b56\u4e0e\u5408\u5e76\u8282\u70b9<\/h3>\n<p>\u8fd9\u4e9b\u8282\u70b9\u7528\u4e8e\u5efa\u6a21\u6761\u4ef6\u5206\u652f\u4ee5\u53ca\u540e\u7eed\u8def\u5f84\u7684\u91cd\u65b0\u6c47\u5408\u3002<\/p>\n<p><img alt=\"\" class=\"alignnone size-full wp-image-14476\" decoding=\"async\" height=\"231\" loading=\"lazy\" sizes=\"auto, (max-width: 588px) 100vw, 588px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Decision-Merge-Nodes.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Decision-Merge-Nodes.png 588w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Decision-Merge-Nodes-300x118.png 300w\" width=\"588\"\/><\/p>\n<ul>\n<li><strong>\u51b3\u7b56\u8282\u70b9\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong>\u83f1\u5f62\u3002<\/li>\n<li><strong>\u7528\u6cd5\uff1a<\/strong>\u4e00\u4e2a\u8f93\u5165\u6d41\u548c\u591a\u4e2a\u8f93\u51fa\u6d41\u3002\u6bcf\u4e2a\u8f93\u51fa\u6d41\u5fc5\u987b\u6709\u4e00\u4e2a<strong>\u4fdd\u62a4\u6761\u4ef6<\/strong>\uff08\u65b9\u62ec\u53f7\u4e2d\u7684\u6761\u4ef6\uff0c\u4f8b\u5982<code>[\u5e93\u5b58 &gt; 0]<\/code>\uff09\u51b3\u5b9a\u9009\u62e9\u54ea\u6761\u8def\u5f84\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5408\u5e76\u8282\u70b9\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong> \u4e00\u4e2a\u83f1\u5f62\u3002<\/li>\n<li><strong> \u7528\u6cd5\uff1a<\/strong> \u591a\u4e2a\u8f93\u5165\u6d41\u548c\u4e00\u4e2a\u8f93\u51fa\u6d41\u3002\u5b83\u4ec5\u8868\u793a\u4e0d\u540c\u5206\u652f\u91cd\u65b0\u6c47\u5408\u7684\u70b9\uff0c\u8868\u660e\u4efb\u610f\u4e00\u4e2a\u8f93\u5165\u5206\u652f\u90fd\u53ef\u4ee5\u8fdb\u5165\u4e0b\u4e00\u6b65\u3002\u5b83\u4e0d\u4f1a\u540c\u6b65\u5e76\u53d1\u6d41\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u5efa\u6a21\u5e76\u53d1\u4e0e\u540c\u6b65<\/h2>\n<p>\u4e0e<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/solutions\/free-flowchart-maker-online\/\">\u6d41\u7a0b\u56fe<\/a>\u901a\u5e38\u4e3a\u987a\u5e8f\u7ed3\u6784\u4e0d\u540c\uff0c\u6d3b\u52a8\u56fe\u64c5\u957f\u4f7f\u7528\u540c\u6b65\u6761\u6765\u5c55\u793a\u5e76\u884c\u6267\u884c\u3002<\/p>\n<h3>A. \u5206\u53c9\u4e0e\u6c47\u5408\u8282\u70b9<\/h3>\n<p>\u8fd9\u4e9b\u8282\u70b9\u7528\u4e8e\u5c06\u5355\u4e00\u63a7\u5236\u6d41\u62c6\u5206\u4e3a\u591a\u4e2a\u5e76\u53d1\u6d41\uff0c\u4e4b\u540e\u7b49\u5f85\u8fd9\u4e9b\u5e76\u53d1\u6d41\u5b8c\u6210\u3002<\/p>\n<p><img alt=\"\" class=\"alignnone size-full wp-image-14477\" decoding=\"async\" height=\"318\" loading=\"lazy\" sizes=\"auto, (max-width: 676px) 100vw, 676px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Fork-and-Join-Node.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Fork-and-Join-Node.png 676w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Fork-and-Join-Node-300x141.png 300w\" width=\"676\"\/><\/p>\n<ul>\n<li><strong>\u5206\u53c9\u8282\u70b9\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong> \u4e00\u6761\u7c97\u7684\u6c34\u5e73\u6216\u5782\u76f4\u6761\u3002<\/li>\n<li><strong> \u7528\u6cd5\uff1a<\/strong> \u4e00\u4e2a\u8f93\u5165\u6d41\u548c\u591a\u4e2a\u8f93\u51fa\u6d41\u3002\u6240\u6709\u8f93\u51fa\u6d41\u4ece\u6b64\u70b9\u5f00\u59cb<em>\u5e76\u53d1<\/em>\uff08\u5e76\u884c\uff09\u6267\u884c\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6c47\u5408\u8282\u70b9\uff1a<\/strong>\n<ul>\n<li><strong>\u7b26\u53f7\uff1a<\/strong> \u4e00\u6761\u7c97\u7684\u6c34\u5e73\u6216\u5782\u76f4\u6761\u3002<\/li>\n<li><strong> \u7528\u6cd5\uff1a<\/strong> \u591a\u4e2a\u8f93\u5165\u6d41\u548c\u4e00\u4e2a\u8f93\u51fa\u6d41\u3002\u8f93\u51fa\u6d41\u5fc5\u987b\u7b49\u5230<strong>\u6240\u6709<\/strong> \u8f93\u5165\u7684\u5e76\u53d1\u6d41\u90fd\u5b8c\u6210\uff08\u540c\u6b65\uff09\u540e\u624d\u80fd\u5f00\u59cb\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u7ec4\u7ec7\u5143\u7d20\uff1a\u6cf3\u9053<\/h2>\n<p><a href=\"https:\/\/guides.visual-paradigm.com\/a-guide-to-swimlane-activity-diagrams\/\">\u6cf3\u9053<\/a>\uff08\u4e5f\u79f0\u4e3a\u5206\u533a\uff09\u5bf9\u4e8e\u663e\u793a\u54ea\u4e2a\u90e8\u95e8\u3001\u7ec4\u4ef6\u6216\u53c2\u4e0e\u8005\u8d1f\u8d23\u54ea\u9879\u6d3b\u52a8\u81f3\u5173\u91cd\u8981\u3002\u5b83\u4eec\u5c06\u56fe\u8868\u5728\u89c6\u89c9\u4e0a\u5212\u5206\u4e3a\u5782\u76f4\u6216\u6c34\u5e73\u533a\u57df\u3002<\/p>\n<ul>\n<li><strong>\u7b26\u53f7\u8868\u793a\uff1a<\/strong>\u5782\u76f4\u6216\u6c34\u5e73\u7684\u5e73\u884c\u7ebf\uff0c\u7528\u4e8e\u5206\u9694\u4e0d\u540c\u7684\u8d23\u4efb\u533a\u57df\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong>\u6309\u8d1f\u8d23\u6267\u884c\u5404\u9879\u64cd\u4f5c\u7684\u5b9e\u4f53\u5bf9\u64cd\u4f5c\u8fdb\u884c\u5206\u7ec4\uff0c\u4ece\u800c\u5728\u4e0d\u540c\u7ec4\u7ec7\u5355\u5143\u4e4b\u95f4\u63d0\u4f9b\u660e\u786e\u7684\u8d23\u4efb\u5f52\u5c5e\uff08\u4f8b\u5982\uff0c\u201c\u5ba2\u6237\u201d\u3001\u201cWeb\u7cfb\u7edf\u201d\u3001\u201c\u4ed3\u5e93\u201d\uff09\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/repository\/images\/963809e4-f9d7-4d8e-8729-5df34911c892\/activity-diagram-design\/order-fulfilment.png\"\/><\/p>\n<h2>\u6d3b\u52a8\u56fe\u6700\u4f73\u5b9e\u8df5\u603b\u7ed3<\/h2>\n<ul>\n<li><strong>\u5efa\u6a21\u6d41\u7a0b\uff0c\u800c\u975e\u5bf9\u8c61\uff1a<\/strong>\u5173\u6ce8\u6b65\u9aa4\u7684\u987a\u5e8f\u548c\u63a7\u5236\u6d41\uff0c\u800c\u975e\u7c7b\u4e4b\u95f4\u7684\u7ed3\u6784\u5173\u7cfb\uff08\u8fd9\u662f\u7c7b\u56fe\u7684\u4efb\u52a1\uff09\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6cf3\u9053\uff1a<\/strong>\u59cb\u7ec8\u4f7f\u7528\u6cf3\u9053\u6765\u6e05\u6670\u5730\u5212\u5206\u6bcf\u4e2a\u52a8\u4f5c\u7684\u6267\u884c\u8005\uff08\u4eba\u6216\u4e8b\u7269\uff09\uff0c\u5c24\u5176\u662f\u5728\u8de8\u804c\u80fd\u4e1a\u52a1\u6d41\u7a0b\u4e2d\u3002<\/li>\n<li><strong>\u6807\u6ce8\u5b88\u536b\u6761\u4ef6\uff1a<\/strong> \u786e\u4fdd\u6bcf\u4e2a\u4ece\u51b3\u7b56\u8282\u70b9\u53d1\u51fa\u7684\u6d41\u7a0b\u90fd\u6807\u6ce8\u6709\u6e05\u6670\u4e14\u4e92\u65a5\u7684\u5b88\u536b\u6761\u4ef6\uff08\u4f8b\u5982\uff0c<code>[A]<\/code>, <code>[B]<\/code>, <code>[\u5426\u5219]<\/code>).<\/li>\n<li><strong>\u540c\u6b65\u5206\u53c9\uff1a<\/strong> \u6bcf\u4e2a<strong>\u5206\u53c9<\/strong> \u5fc5\u987b\u7531\u4e00\u4e2a<strong>\u6c47\u5408<\/strong>\u6765\u786e\u4fdd\u540e\u7eed\u6b65\u9aa4\u7b49\u5f85\u6240\u6709\u5e76\u884c\u6d3b\u52a8\u5b8c\u6210\u3002<\/li>\n<\/ul>\n<p>\u8981\u66f4\u6df1\u5165\u5730\u7406\u89e3UML\u4ee5\u53ca\u4eba\u5de5\u667a\u80fd\u5982\u4f55\u5bf9\u5176\u8fdb\u884c\u53ef\u89c6\u5316\uff0c\u53ef\u8bbf\u95ee\u6211\u4eec\u7684<a 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