{"id":10701,"date":"2026-03-05T14:16:41","date_gmt":"2026-03-05T06:16:41","guid":{"rendered":"https:\/\/www.archimetric.com\/cn\/understanding-uml-multiplicity\/"},"modified":"2026-03-05T14:16:41","modified_gmt":"2026-03-05T06:16:41","slug":"understanding-uml-multiplicity","status":"publish","type":"post","link":"https:\/\/www.archimetric.com\/cn\/understanding-uml-multiplicity\/","title":{"rendered":"\u7406\u89e3UML\u591a\u91cd\u6027"},"content":{"rendered":"<p>\u5728\u8f6f\u4ef6\u8bbe\u8ba1\u4e0e\u5efa\u6a21\u9886\u57df\uff0c\u7edf\u4e00\u5efa\u6a21\u8bed\u8a00\uff08UML\uff09\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u53ef\u89c6\u5316\u548c\u8bb0\u5f55\u7cfb\u7edf\u7684\u7ed3\u6784\u4e0e\u884c\u4e3a\u3002UML\u4e2d\u7684\u4e00\u4e2a\u5173\u952e\u6982\u5ff5\u662f<a href=\"https:\/\/blog.visual-paradigm.com\/what-is-multiplicity\/\"><strong>\u591a\u91cd\u6027<\/strong><\/a>\uff0c\u5b83\u5b9a\u4e49\u4e86\u53c2\u4e0e\u5173\u8054\u7684\u5bf9\u8c61\u6570\u91cf\u7684\u7ea6\u675f\u3002\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u4e86\u591a\u91cd\u6027\u7684\u6982\u5ff5\u3001\u5176\u91cd\u8981\u6027\u4ee5\u53ca\u5b83\u5728UML\u56fe\u4e2d\u7684\u5e94\u7528\u65b9\u5f0f\u3002<\/p>\n<h4>\u4ec0\u4e48\u662f\u591a\u91cd\u6027\uff1f<\/h4>\n<p><a href=\"https:\/\/blog.visual-paradigm.com\/what-is-multiplicity\/\">UML\u4e2d\u7684\u591a\u91cd\u6027<\/a>\u662f\u4e00\u79cd\u7ea6\u675f\uff0c\u7528\u4e8e\u6307\u5b9a\u53c2\u4e0e\u5173\u8054\u4e00\u7aef\u7684\u5bf9\u8c61\u6570\u91cf\u3002\u5b83\u56de\u7b54\u8bf8\u5982\u201c\u4e00\u4e2a\u4eba\u53ef\u4ee5\u62e5\u6709\u591a\u5c11\u8f86\u6c7d\u8f66\uff1f\u201d\u6216\u201c\u4e00\u8f86\u8f66\u53ef\u4ee5\u7531\u591a\u5c11\u4eba\u9a7e\u9a76\uff1f\u201d\u4e4b\u7c7b\u7684\u95ee\u9898\u3002\u901a\u8fc7\u5b9a\u4e49\u591a\u91cd\u6027\uff0c\u60a8\u53ef\u4ee5\u8bbe\u5b9a\u7c7b\u4e2d\u5bf9\u8c61\u4e4b\u95f4\u5173\u7cfb\u7684\u89c4\u5219\uff0c\u4ece\u800c\u4ee5\u6e05\u6670\u7b80\u6d01\u7684\u65b9\u5f0f\u8868\u8fbe\u8fd9\u4e9b\u5173\u7cfb\u3002<\/p>\n<h4>\u8868\u8fbe\u591a\u91cd\u6027<\/h4>\n<p>\u591a\u91cd\u6027\u901a\u5e38\u4ee5\u4e00\u4e2a\u8303\u56f4\u6765\u8868\u793a\uff0c\u8be5\u8303\u56f4\u5b9a\u4e49\u4e86\u5173\u8054\u4e2d\u5141\u8bb8\u7684\u5bf9\u8c61\u7684\u6700\u5c0f\u548c\u6700\u5927\u6570\u91cf\u3002\u8868\u8fbe\u591a\u91cd\u6027\u7684\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u786e\u5207\u6570\u91cf<\/strong>\uff1a\u4e00\u4e2a\u5355\u4e00\u6570\u5b57\uff0c\u8868\u793a\u5bf9\u8c61\u7684\u786e\u5207\u6570\u91cf\u3002<\/li>\n<li><strong>\u8303\u56f4<\/strong>\uff1a\u4e24\u4e2a\u7531\u4e24\u4e2a\u70b9\uff08..\uff09\u5206\u9694\u7684\u6570\u5b57\uff0c\u8868\u793a\u6700\u5c0f\u548c\u6700\u5927\u6570\u91cf\u3002<\/li>\n<li><strong>\u661f\u53f7\uff08*\uff09<\/strong>\uff1a\u8868\u793a\u5bf9\u8c61\u6570\u91cf\u65e0\u9650\u5236\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code class=\"\">1<\/code>\uff1a\u6070\u597d\u4e00\u4e2a\u5bf9\u8c61\u3002<\/li>\n<li><code class=\"\">0..1<\/code>\uff1a\u96f6\u4e2a\u6216\u4e00\u4e2a\u5bf9\u8c61\u3002<\/li>\n<li><code class=\"\">1..*<\/code>\uff1a\u81f3\u5c11\u4e00\u4e2a\u5bf9\u8c61\uff0c\u65e0\u4e0a\u9650\u3002<\/li>\n<li><code class=\"\">*<\/code>\uff1a\u4efb\u610f\u6570\u91cf\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u96f6\u3002<\/li>\n<\/ul>\n<p><img alt=\"What is Multiplicity\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/05-multiplicities-examples.png\"\/><\/p>\n<h4>\u5728\u5173\u8054\u4e2d\u5e94\u7528\u591a\u91cd\u6027<\/h4>\n<p>\u5728\u5bf9\u7c7b\u4e4b\u95f4\u7684\u5173\u8054\u8fdb\u884c\u5efa\u6a21\u65f6\uff0c\u591a\u91cd\u6027\u88ab\u5206\u914d\u5230\u5173\u8054\u7684\u6bcf\u4e00\u7aef\u3002\u4f8b\u5982\uff0c\u8003\u8651\u201c<code class=\"\">\u4eba<\/code>\u201d\u7c7b\u4e0e\u201c<code class=\"\">\u6c7d\u8f66<\/code>\u201d\u7c7b\u4e4b\u95f4\u7684\u5173\u8054\uff1a<\/p>\n<ul>\n<li><strong>\u95ee\u98981<\/strong>: \u4e00\u4e2a\u4eba\u6700\u591a\u53ef\u4ee5\u62e5\u6709\u591a\u5c11\u8f86\u6c7d\u8f66\uff1f<\/li>\n<li><strong>\u95ee\u98982<\/strong>: \u4e00\u8f86\u7ed9\u5b9a\u7684\u6c7d\u8f66\u53ef\u4ee5\u7531\u591a\u5c11\u4eba\u9a7e\u9a76\uff1f<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u95ee\u9898\u7684\u7b54\u6848\u4f1a\u653e\u5728\u5173\u8054\u4e2d\u76f8\u5e94\u7c7b\u7684\u65c1\u8fb9\u3002\u5982\u679c\u4e00\u4e2a\u4eba\u53ef\u4ee5\u62e5\u6709\u96f6\u8f86\u5230\u591a\u8f86\u6c7d\u8f66\uff0c\u90a3\u4e48\u9760\u8fd1\u201c<code class=\"\">\u6c7d\u8f66<\/code>\u201d\u7c7b\u7684\u591a\u91cd\u6027\u5c06\u662f<code class=\"\">0..*<\/code>\u3002\u76f8\u53cd\uff0c\u5982\u679c\u4e00\u8f86\u6c7d\u8f66\u53ef\u4ee5\u7531\u4e00\u4eba\u5230\u591a\u4eba\u9a7e\u9a76\uff0c\u90a3\u4e48\u9760\u8fd1\u201c<code class=\"\">\u4eba<\/code>\u201d\u7c7b\u7684\u591a\u91cd\u6027\u5c06\u662f<code class=\"\">1..*<\/code>.<\/p>\n<h4>\u793a\u4f8b\uff1a\u8fd0\u8f93\u548c\u4ea7\u54c1<\/h4>\n<p>\u4e3a\u4e86\u8bf4\u660e\uff0c\u8003\u8651\u4e00\u79cd\u60c5\u51b5\uff1a\u4e00\u4e2a<code class=\"\">\u8fd0\u8f93<\/code>\u5fc5\u987b\u81f3\u5c11\u5305\u542b\u4e00\u4e2a<code class=\"\">\u4ea7\u54c1<\/code>\uff0c\u4f46\u53ef\u4ee5\u5305\u542b\u6240\u9700\u6570\u91cf\u7684\u591a\u4e2a\u4ea7\u54c1\u3002\u5173\u8054\u7684<code class=\"\">\u4ea7\u54c1<\/code>\u7aef\u7684\u591a\u91cd\u6027\u5c06\u662f<code class=\"\">1..*<\/code>\uff0c\u8868\u793a\u4e00\u4e2a\u8fd0\u8f93\u5fc5\u987b\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u4ea7\u54c1\uff0c\u4f46\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u3002<\/p>\n<h4>\u7b26\u53f7\u4e0e\u8868\u793a\u6cd5<\/h4>\n<p>\u5728UML\u56fe\u4e2d\uff0c\u591a\u91cd\u6027\u4f7f\u7528\u7279\u5b9a\u7684\u7b26\u53f7\u8868\u793a\uff1a<\/p>\n<ul>\n<li><strong>\u661f\u53f7\uff08*\uff09<\/strong>\uff1a\u8868\u793a\u5bf9\u8c61\u7684\u6570\u91cf\u65e0\u9650\u5236\u3002<\/li>\n<li><strong>\u8303\u56f4\uff08<code class=\"\">\u6700\u5c0f\u503c..\u6700\u5927\u503c<\/code>)<\/strong>: \u6307\u5b9a\u5bf9\u8c61\u7684\u6700\u5c0f\u548c\u6700\u5927\u6570\u91cf\u3002<\/li>\n<li><strong>\u7cbe\u786e\u6570\u91cf<\/strong>: \u8868\u793a\u5bf9\u8c61\u7684\u7cbe\u786e\u6570\u91cf\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u7b26\u53f7\u6709\u52a9\u4e8e\u6e05\u6670\u5730\u5b9a\u4e49\u7c7b\u4e4b\u95f4\u5173\u7cfb\u7684\u7ea6\u675f\u548c\u89c4\u5219\u3002<\/p>\n<h3>\u793a\u4f8b 1\uff1a\u4eba\u5458\u4e0e\u6c7d\u8f66<\/h3>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4e00\u4e2a<code class=\"\">\u4eba\u5458<\/code>\u53ef\u4ee5\u62e5\u6709\u96f6\u4e2a\u5230\u591a\u4e2a<code class=\"\">\u6c7d\u8f66<\/code>\uff0c\u5e76\u4e14\u4e00\u672c<code class=\"\">\u6c7d\u8f66<\/code>\u53ef\u4ee5\u7531\u4e00\u4e2a\u5230\u591a\u4e2a<code class=\"\">\u4eba\u5458<\/code>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8a9b1e6.png\"\/><\/p>\n<h3>\u793a\u4f8b 2\uff1a\u8fd0\u8f93\u4e0e\u4ea7\u54c1<\/h3>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4e00\u4e2a<code class=\"\">\u8fd0\u8f93<\/code>\u5fc5\u987b\u81f3\u5c11\u5305\u542b\u4e00\u4e2a<code class=\"\">\u4ea7\u54c1<\/code>\u4f46\u53ef\u4ee5\u5305\u542b\u6240\u9700\u6570\u91cf\u7684\u591a\u4e2a\u4ea7\u54c1\u3002<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbO8piWio4tDAr6evkLIKD1EpiyhISpCAmueoayfJIufrj2qKl39B2wnWGhOyNBLydB1D4C5eNepyv9pIbDIKpppO8OYjCD4OFhXrYePwkbfAIdewi9OC3Ej561kKG1gSaZDIm6x6W00 (321\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8b3ea92.png\"\/><\/p>\n<h3>\u793a\u4f8b 3\uff1a\u56fe\u4e66\u9986\u4e0e\u4e66\u7c4d<\/h3>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4e00\u4e2a<code class=\"\">\u56fe\u4e66\u9986<\/code>\u53ef\u4ee5\u62e5\u6709\u591a\u4e2a<code class=\"\">\u4e66\u7c4d<\/code>\uff0c\u5e76\u4e14\u4e00\u672c<code class=\"\">\u4e66\u7c4d<\/code>\u53ef\u4ee5\u5b58\u5728\u4e8e\u4e00\u4e2a<code class=\"\">\u56fe\u4e66\u9986<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbRmoKmgIYogLAZcvL9GqCv8B7RApyykrj2q0ieKbzY0U7QyNBMyN30D816ewhJyqhmKppoe4H0zO2PK0yni9KCb1LrT1IK3FJqj9OW1LWh9-NabYPbvnGf0unrIyrB0RW80 (210\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8be004c.png\"\/><\/p>\n<h3>\u793a\u4f8b 4\uff1a\u6559\u5e08\u548c\u5b66\u751f<\/h3>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4e00\u4e2a<code class=\"\">\u6559\u5e08<\/code>\u53ef\u4ee5\u6559\u6388\u8bb8\u591a<code class=\"\">\u5b66\u751f<\/code>\uff0c\u5e76\u4e14\u4e00\u4e2a<code class=\"\">\u5b66\u751f<\/code>\u53ef\u4ee5\u7531\u4e00\u4f4d<code class=\"\">\u6559\u5e08<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbO8IKrCpaWjKgZcvL9Gq2u1yug3IqfJKlDAYZKqhHHyCejBRA02ThnSjRnSCArGGPZMnDBqZ1AdIgY18ArG9bGJp2ObGoK5NLq59GCzFIqbk25M2b2x5O2MEAJcfO3T2000 (279\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8c80d65.png\"\/><\/p>\n<h3>\u793a\u4f8b 5\uff1a\u8ba2\u5355\u548c\u9879\u76ee<\/h3>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4e00\u4e2a<code class=\"\">\u8ba2\u5355<\/code>\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a<code class=\"\">\u9879\u76ee<\/code>\uff0c\u5e76\u4e14\u4e00\u540d<code class=\"\">\u9879\u76ee<\/code>\u53ef\u4ee5\u5c5e\u4e8e\u96f6\u4e2a\u6216\u591a\u4e2a<code class=\"\">\u8ba2\u5355<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbRmBqf9BLAevkLIKD1EpiyhISpCA_OiISqjrj2qKl39B2wn0V7iUBbgURbWUa0YK2q5GDFyqy2687I0kJ0j40kK3FNqj9GKT7KLb0p0BB0PLWemAnM0oXrIyrB0BWC0 (239\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8d1e04f.png\"\/><\/p>\n<h3>\u793a\u4f8b 6\uff1a\u516c\u53f8\u548c\u5458\u5de5<\/h3>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4e00\u4e2a<code class=\"\">\u516c\u53f8<\/code>\u53ef\u4ee5\u62e5\u6709\u8bb8\u591a<code class=\"\">\u5458\u5de5<\/code>\uff0c\u5e76\u4e14\u4e00\u540d<code class=\"\">\u5458\u5de5<\/code>\u4e3a\u4e00\u5bb6<code class=\"\">\u516c\u53f8<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbPmpiyjICohLAZcvL9GqCv8B7RDBSZ9hqnDBTRGj5BmoImkiO69sF5orV9omJJ2HA4wo_EBielTyekWve4qGvbGNJ2Bb0oL57Hr5PGCzFIqb12cM2caWfd52a1h75BpKi1k1000 (277\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8db7999.png\"\/><\/p>\n<p>\u8fd9\u4e9b\u793a\u4f8b\u8bf4\u660e\u4e86\u5982\u4f55\u4f7f\u7528\u591a\u91cd\u6027\u6765\u5b9a\u4e49\u53c2\u4e0e\u5173\u8054\u7684\u5bf9\u8c61\u6570\u91cf\uff0c\u63d0\u4f9b\u4e86\u4e00\u79cd\u6e05\u6670\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u8868\u8fbe\u4e4b\u95f4\u7684\u5173\u7cfb<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/class-diagram-tutorial\/\">UML\u4e2d\u7684\u7c7b<\/a>\u56fe\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u591a\u91cd\u6027\u662fUML\u4e2d\u7684\u4e00\u4e2a\u57fa\u672c\u6982\u5ff5\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\u6765\u5b9a\u4e49\u53c2\u4e0e\u5173\u8054\u7684\u5bf9\u8c61\u6570\u91cf\u3002\u901a\u8fc7\u6307\u5b9a\u591a\u91cd\u6027\uff0c\u8bbe\u8ba1\u4eba\u5458\u53ef\u4ee5\u786e\u4fdd\u7c7b\u4e4b\u95f4\u7684\u5173\u7cfb\u88ab\u660e\u786e\u5b9a\u4e49\u5e76\u88ab\u7406\u89e3\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u5065\u58ee\u548c\u53ef\u7ef4\u62a4\u7684\u7cfb\u7edf\u8bbe\u8ba1\u3002\u65e0\u8bba\u60a8\u662f\u5728\u5efa\u6a21\u7b80\u5355\u7684\u5173\u8054\u8fd8\u662f\u590d\u6742\u7684\u5173\u8054\uff0c\u7406\u89e3\u548c\u5e94\u7528\u591a\u91cd\u6027\u5bf9\u4e8e\u6709\u6548\u7684UML\u5efa\u6a21\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002<\/p>\n<h2>\u8d44\u6e90<\/h2>\n<ol>\n<li><strong>\u5728Visual Paradigm\u4e2d\u7ed8\u5236\u5b9e\u4f53\u5173\u7cfb\u56fe<\/strong>\n<ul>\n<li>Visual Paradigm.\uff08\u65e0\u65e5\u671f\uff09<a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85375_drawingentit.html\">\u5728Visual Paradigm\u4e2d\u7ed8\u5236\u5b9e\u4f53\u5173\u7cfb\u56fe<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85375_drawingentit.html\" rel=\"noopener\" target=\"_blank\">4<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5b9e\u4f53\u5173\u7cfb\u56fe\u2014\u2014\u591a\u91cd\u6027<\/strong>\n<ul>\n<li>Stack Overflow.\uff08\u65e0\u65e5\u671f\uff09<a href=\"https:\/\/stackoverflow.com\/questions\/41731377\/entity-relationship-diagram-multiplicities\">\u5b9e\u4f53\u5173\u7cfb\u56fe\u2014\u2014\u591a\u91cd\u6027<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/stackoverflow.com\/questions\/41731377\/entity-relationship-diagram-multiplicities\" rel=\"noopener\" target=\"_blank\">5<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5b9e\u4f53\u5173\u7cfb\u56fe<\/strong>\n<ul>\n<li>GitHub.\uff08\u65e0\u65e5\u671f\uff09<a href=\"https:\/\/github.com\/weston-bailey\/entity-relationship-diagrams\">\u5b9e\u4f53\u5173\u7cfb\u56fe<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/github.com\/weston-bailey\/entity-relationship-diagrams\" rel=\"noopener\" target=\"_blank\">6<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5728UML\u5f62\u72b6\u4e0a\u6307\u5b9a\u591a\u91cd\u6027<\/strong>\n<ul>\n<li>Microsoft Support.\uff08\u65e0\u65e5\u671f\uff09<a href=\"https:\/\/support.microsoft.com\/en-us\/office\/specify-multiplicity-on-an-uml-shape-e2dcac55-e9b6-40fa-a976-eb5f6ef2df3b\">\u5728UML\u5f62\u72b6\u4e0a\u6307\u5b9a\u591a\u91cd\u6027<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/support.microsoft.com\/en-us\/office\/specify-multiplicity-on-an-uml-shape-e2dcac55-e9b6-40fa-a976-eb5f6ef2df3b\" rel=\"noopener\" target=\"_blank\">7<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u4ec0\u4e48\u662f\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\uff1f<\/strong>\n<ul>\n<li>Visual Paradigm.\uff08\u65e0\u65e5\u671f\uff09<a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-modeling\/what-is-entity-relationship-diagram\/\">\u4ec0\u4e48\u662f\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\uff1f<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/guide\/data-modeling\/what-is-entity-relationship-diagram\/\" rel=\"noopener\" target=\"_blank\">8<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Visual Paradigm ER\u56fe\u6dfb\u52a0\u8868<\/strong>\n<ul>\n<li>Stack Overflow. (\u65e0\u65e5\u671f).\u00a0<a href=\"https:\/\/stackoverflow.com\/questions\/36464950\/visual-paradigm-er-diagram-adding-tables\">Visual Paradigm ER\u56fe\u6dfb\u52a0\u8868<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/stackoverflow.com\/questions\/36464950\/visual-paradigm-er-diagram-adding-tables\" rel=\"noopener\" target=\"_blank\">9<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5982\u4f55\u5728 Visual Paradigm \u4e2d\u4e3a\u7c7b\u56fe\u6dfb\u52a0\u591a\u91cd\u6027\uff1f<\/strong>\n<ul>\n<li>TheNewsIndependent. (2020\u5e7412\u670829\u65e5).\u00a0<a href=\"https:\/\/www.thenewsindependent.com\/how-do-you-add-a-multiplicity-to-a-class-diagram-in-visual-paradigm\/\">\u5982\u4f55\u5728 Visual Paradigm \u4e2d\u4e3a\u7c7b\u56fe\u6dfb\u52a0\u591a\u91cd\u6027\uff1f<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.thenewsindependent.com\/how-do-you-add-a-multiplicity-to-a-class-diagram-in-visual-paradigm\/\" rel=\"noopener\" target=\"_blank\">10<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5b9e\u4f53\u5173\u7cfb\uff08ER\uff09\u56fe\u5165\u95e8\u6307\u5357<\/strong>\n<ul>\n<li>Visual Paradigm \u535a\u5ba2. (2023\u5e749\u670821\u65e5).\u00a0<a href=\"https:\/\/blog.visual-paradigm.com\/beginners-guide-to-entity-relationship-er-diagrams\/\">\u5b9e\u4f53\u5173\u7cfb\uff08ER\uff09\u56fe\u5165\u95e8\u6307\u5357<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/blog.visual-paradigm.com\/beginners-guide-to-entity-relationship-er-diagrams\/\" rel=\"noopener\" target=\"_blank\">11<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u591a\u91cd\u6027\u4e0e\u57fa\u6570<\/strong>\n<ul>\n<li>Stack Overflow. (\u65e0\u65e5\u671f).\u00a0<a href=\"https:\/\/stackoverflow.com\/questions\/17877582\/multiplicity-vs-cardinality\">\u591a\u91cd\u6027\u4e0e\u57fa\u6570<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/stackoverflow.com\/questions\/17877582\/multiplicity-vs-cardinality\" rel=\"noopener\" target=\"_blank\">12<\/a>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><\/h2>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u8f6f\u4ef6\u8bbe\u8ba1\u4e0e\u5efa\u6a21\u9886\u57df\uff0c\u7edf\u4e00\u5efa\u6a21\u8bed\u8a00\uff08UM<\/p>\n","protected":false},"author":3479,"featured_media":10702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/05-multiplicities-examples.png","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[],"class_list":["post-10701","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - 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