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alt=\"ERD - Small Loan System - Visual Paradigm Community Circle\" decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/ERD-Small-Loan-System.png\"\/><\/p>\n<p>\u4ee5\u4e0b\u662f\u985e\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\u4e4b\u9593\u7684\u4e00\u4e9b\u95dc\u9375\u5dee\u7570\uff1a<\/p>\n<ol>\n<li>\u76ee\u7684\uff1a\u985e\u5716\u7528\u65bc\u8868\u793a\u8edf\u9ad4\u7cfb\u7d71\u7684\u7d50\u69cb\uff0c\u800c\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u7528\u65bc\u8868\u793a\u8cc7\u6599\u5eab\u7cfb\u7d71\u7684\u7d50\u69cb\u3002<\/li>\n<li>\u62bd\u8c61\u5c64\u6b21\uff1a\u985e\u5716\u66f4\u5177\u62bd\u8c61\u6027\uff0c\u8457\u91cd\u65bc\u7cfb\u7d71\u7684\u8a2d\u8a08\uff0c\u800c\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u66f4\u70ba\u5177\u9ad4\uff0c\u8457\u91cd\u65bc\u7cfb\u7d71\u4e2d\u5c07\u5132\u5b58\u7684\u8cc7\u6599\u3002<\/li>\n<li>\u95dc\u4fc2\uff1a\u985e\u5716\u986f\u793a\u985e\u5225\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u800c\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u986f\u793a\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u3002<\/li>\n<li>\u5c6c\u6027\uff1a\u985e\u5716\u986f\u793a\u985e\u5225\u7684\u5c6c\u6027\uff0c\u800c\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u986f\u793a\u5be6\u9ad4\u7684\u5c6c\u6027\u3002<\/li>\n<\/ol>\n<p>\u7576\u60a8\u8a2d\u8a08\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\u7684\u7d50\u69cb\u6642\uff0c\u6703\u4f7f\u7528\u985e\u5716\uff1b\u7576\u60a8\u8a2d\u8a08\u8cc7\u6599\u5eab\u7cfb\u7d71\u7684\u7d50\u69cb\u6642\uff0c\u5247\u6703\u4f7f\u7528\u5be6\u9ad4\u95dc\u4fc2\u5716\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u540c\u6642\u4f7f\u7528\u9019\u5169\u7a2e\u5716\u8868\uff0c\u4ee5\u8a2d\u8a08\u540c\u6642\u5177\u5099\u7269\u4ef6\u5c0e\u5411\u8207\u8cc7\u6599\u5eab\u5143\u4ef6\u7684\u7cfb\u7d71\u3002<\/p>\n<p>\u7c21\u800c\u8a00\u4e4b\uff0c\u985e\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\u90fd\u662f\u8edf\u9ad4\u958b\u767c\u8005\u7684\u6709\u7528\u5de5\u5177\uff0c\u4f46\u7528\u9014\u4e0d\u540c\u3002\u985e\u5716\u7528\u65bc\u8a2d\u8a08\u8edf\u9ad4\u7cfb\u7d71\u7684\u7d50\u69cb\uff0c\u800c\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u7528\u65bc\u8a2d\u8a08\u8cc7\u6599\u5eab\u7cfb\u7d71\u7684\u7d50\u69cb\u3002<\/p>\n<h2>\u7269\u4ef6\u5efa\u6a21\u8207\u985e\u5716<\/h2>\n<p>\u7269\u4ef6\u5efa\u6a21\u662f\u8edf\u9ad4\u958b\u767c\u4e2d\u81f3\u95dc\u91cd\u8981\u7684\u74b0\u7bc0\uff0c\u56e0\u70ba\u5b83\u6709\u52a9\u65bc\u4ee5\u7cfb\u7d71\u5316\u4e14\u7d50\u69cb\u5316\u7684\u65b9\u5f0f\u5448\u73fe\u73fe\u5be6\u4e16\u754c\u7684\u60c5\u5883\u8207\u6d41\u7a0b\u3002UML\uff08\u7d71\u4e00\u6a21\u578b\u8a9e\u8a00\uff09\u662f\u5168\u7403\u8edf\u9ad4\u958b\u767c\u8005\u6700\u5e38\u4f7f\u7528\u7684\u5efa\u6a21\u8a9e\u8a00\u4e4b\u4e00\uff0c\u7528\u65bc\u5efa\u7acb\u8edf\u9ad4\u7cfb\u7d71\u7684\u8996\u89ba\u5316\u6a21\u578b\u3002UML\u7684\u4e3b\u8981\u7d44\u6210\u90e8\u5206\u4e4b\u4e00\u4fbf\u662f\u985e\u5716\uff0c\u7528\u65bc\u6a21\u64ec\u8edf\u9ad4\u7cfb\u7d71\u7684\u975c\u614b\u7d50\u69cb\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4f7f\u7528UML\u985e\u5716\u9032\u884c\u7269\u4ef6\u5efa\u6a21\u3002<\/p>\n<h3>\u7528\u65bc\u7269\u4ef6\u5efa\u6a21\u7684UML\u985e\u5716<\/h3>\n<p>UML\u985e\u5716\u662f\u8edf\u9ad4\u7cfb\u7d71\u7684\u5716\u5f62\u5316\u8868\u793a\uff0c\u7528\u4ee5\u5448\u73fe\u7cfb\u7d71\u4e2d\u7684\u985e\u5225\u53ca\u5176\u8207\u5176\u4ed6\u985e\u5225\u7684\u95dc\u4fc2\u3002\u985e\u5225\u662f\u4e00\u7a2e\u7bc4\u672c\u6216\u85cd\u5716\uff0c\u5b9a\u7fa9\u4e86\u4e00\u7d44\u7269\u4ef6\u7684\u5c6c\u6027\u8207\u884c\u70ba\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u985e\u5225\u4ee3\u8868\u4e00\u985e\u5171\u4eab\u5171\u540c\u5c6c\u6027\u8207\u65b9\u6cd5\u7684\u7269\u4ef6\u3002<\/p>\n<p>\u5728UML\u4e2d\uff0c\u985e\u5225\u4ee5\u4e00\u500b\u4e09\u683c\u77e9\u5f62\u8868\u793a\uff1a\u9802\u7aef\u683c\u5b50\u5305\u542b\u985e\u5225\u540d\u7a31\uff0c\u4e2d\u9593\u683c\u5b50\u5305\u542b\u5c6c\u6027\uff0c\u5e95\u7aef\u683c\u5b50\u5305\u542b\u65b9\u6cd5\u3002\u985e\u5225\u540d\u7a31\u901a\u5e38\u4ee5\u7c97\u9ad4\u66f8\u5beb\uff0c\u5c6c\u6027\u8207\u65b9\u6cd5\u5247\u5206\u5225\u5217\u65bc\u5c0d\u61c9\u683c\u5b50\u4e2d\u3002\u5c6c\u6027\u662f\u985e\u5225\u7684\u5c6c\u6027\uff0c\u800c\u65b9\u6cd5\u5247\u662f\u985e\u5225\u53ef\u57f7\u884c\u7684\u884c\u70ba\u6216\u52d5\u4f5c\u3002<\/p>\n<p>\u8981\u5efa\u7acb\u985e\u5716\uff0c\u60a8\u9700\u8981\u8b58\u5225\u7cfb\u7d71\u4e2d\u7684\u985e\u53ca\u5176\u8207\u5176\u4ed6\u985e\u7684\u95dc\u4fc2\u3002\u985e\u4e4b\u9593\u53ef\u80fd\u5b58\u5728\u5e7e\u7a2e\u4e0d\u540c\u985e\u578b\u7684\u95dc\u4fc2\uff0c\u5305\u62ec\u95dc\u806f\u3001\u805a\u5408\u3001\u7d44\u5408\u3001\u7e7c\u627f\u548c\u4f9d\u8cf4\u3002<\/p>\n<h3>\u70ba\u4ec0\u9ebc\u985e\u5728\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\u4e2d\u81f3\u95dc\u91cd\u8981<\/h3>\n<p>\u985e\u662f\u7269\u4ef6\u5c0e\u5411\uff08OO\uff09\u7cfb\u7d71\u4e2d\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u56e0\u70ba\u5b83\u5011\u63d0\u4f9b\u4e86\u4e00\u7a2e\u5728\u8edf\u9ad4\u7cfb\u7d71\u4e2d\u8868\u793a\u73fe\u5be6\u4e16\u754c\u7269\u4ef6\u53ca\u5176\u884c\u70ba\u7684\u65b9\u5f0f\u3002\u5728\u7269\u4ef6\u5c0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Microsoft Visio\u3001Eclipse \u6216 Rational Rose\u3002<\/p>\n<h2>\u7bc4\u4f8b \u2013 \u96f6\u552e\u516c\u53f8\u7684\u96fb\u5b50\u5546\u52d9\u5e73\u53f0<\/h2>\n<p>\u5047\u8a2d\u60a8\u88ab\u59d4\u6d3e\u8a2d\u8a08\u4e00\u500b\u96f6\u552e\u516c\u53f8\u7684\u5168\u65b0\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u3002\u516c\u53f8\u5e0c\u671b\u8b93\u5ba2\u6236\u80fd\u5920\u7dda\u4e0a\u700f\u89bd\u548c\u8cfc\u8cb7\u5546\u54c1\uff0c\u540c\u6642\u7ba1\u7406\u5176\u5e33\u6236\u8cc7\u8a0a\u548c\u8a02\u55ae\u6b77\u53f2\u3002\u8a72\u5e73\u53f0\u9700\u8981\u5177\u5099\u53ef\u64f4\u5c55\u6027\u3001\u5b89\u5168\u6027\uff0c\u4e26\u80fd\u8655\u7406\u5927\u91cf\u540c\u6642\u4f7f\u7528\u8005\u3002<\/p>\n<p>\u8981\u958b\u767c\u6b64\u5e73\u53f0\uff0c\u60a8\u9700\u8981\u5efa\u7acb\u4e00\u4efd\u8a73\u7d30\u7684\u85cd\u5716\uff0c\u63cf\u8ff0\u7cfb\u7d71\u7684\u67b6\u69cb\u8207\u529f\u80fd\u3002\u9019\u6b63\u662f\u985e\u5716\u3001ER\u5716\u548c\u7269\u4ef6\u5716\u6d3e\u4e0a\u7528\u5834\u7684\u5730\u65b9\u3002<\/p>\n<h3>\u5efa\u7acb\u985e\u5716<\/h3>\n<p>\u5982\u4e0b\u6240\u793a\u7684\u985e\u5716\uff0c\u63d0\u4f9b\u4e86\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\u4e2d\u985e\u53ca\u5176\u95dc\u4fc2\u7684\u6574\u9ad4\u6982\u89bd\u3002\u5728\u4e0a\u8ff0\u751f\u6210\u7684\u7bc4\u4f8b\u4e2d\uff0c\u8b58\u5225\u51fa\u7684\u985e\u5305\u62ec\u5ba2\u6236\uff08Customer\uff09\u3001\u7522\u54c1\uff08Product\uff09\u548c\u8a02\u55ae\uff08Order\uff09\uff0c\u6bcf\u500b\u985e\u90fd\u6709\u5176\u5c0d\u61c9\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u985e\u5716\u4e5f\u986f\u793a\u4e86\u985e\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u4f8b\u5982\u5ba2\u6236\u8207\u8a02\u55ae\u4e4b\u9593\u7684\u4e00\u5c0d\u591a\u95dc\u4fc2\uff0c\u4ee5\u53ca\u8a02\u55ae\u8207\u7522\u54c1\u4e4b\u9593\u7684\u591a\u5c0d\u591a\u95dc\u4fc2\u3002<\/p>\n<p id=\"DmHQNjL\"><img fetchpriority=\"high\" alt=\"UML Class Diagram for Customer-Order-Product example\" class=\"alignnone size-full wp-image-981\" decoding=\"async\" fetchpriority=\"high\" height=\"458\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/customer-order-and-product-class-diagram.png\" width=\"375\"\/><\/p>\n<h2>\u7269\u4ef6\u5716<\/h2>\n<div class=\"flex-1 overflow-hidden\">\n<div class=\"react-scroll-to-bottom--css-qjwkn-79elbk h-full dark:bg-gray-800\">\n<div class=\"react-scroll-to-bottom--css-qjwkn-1n7m0yu\">\n<div class=\"flex flex-col items-center text-sm dark:bg-gray-800\">\n<div class=\"group w-full text-gray-800 dark:text-gray-100 border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\">\n<div class=\"text-base gap-4 md:gap-6 md:max-w-2xl lg:max-w-2xl xl:max-w-3xl p-4 md:py-6 flex lg:px-0 m-auto\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-4 whitespace-pre-wrap\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u4e0b\u65b9\u7684\u7269\u4ef6\u5716\u986f\u793a\u4e86\u67d0\u4e00\u7279\u5b9a\u6642\u523b\u4e0b\u67d0\u500b\u985e\u7684\u5177\u9ad4\u5be6\u4f8b\u3002\u5b83\u5448\u73fe\u7cfb\u7d71\u4e2d\u7684\u7269\u4ef6\u53ca\u5176\u95dc\u4fc2\u3002\u5728\u4e0a\u8ff0\u751f\u6210\u7684\u7bc4\u4f8b\u4e2d\uff0c\u7269\u4ef6\u5716\u986f\u793a\u4e86\u5ba2\u6236\u3001\u8a02\u55ae\u548c\u7522\u54c1\u7684\u5177\u9ad4\u5be6\u4f8b\u3002\u5716\u4e2d\u986f\u793a\u5ba2\u6236\u7269\u4ef6\u8207\u7279\u5b9a\u8a02\u55ae\u7269\u4ef6\u76f8\u95dc\u806f\uff0c\u4e14\u8a72\u8a02\u55ae\u7269\u4ef6\u5305\u542b\u7279\u5b9a\u7684\u7522\u54c1\u7269\u4ef6\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u985e\u5716\u7528\u65bc\u63d0\u4f9b\u985e\u53ca\u5176\u95dc\u4fc2\u7684\u6574\u9ad4\u6982\u89bd\uff0c\u800c\u7269\u4ef6\u5716\u5247\u7528\u65bc\u5448\u73fe\u7279\u5b9a\u6642\u523b\u4e0b\u985e\u7684\u5177\u9ad4\u5be6\u4f8b\u53ca\u5176\u95dc\u4fc2\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"absolute bottom-0 left-0 w-full border-t md:border-t-0 dark:border-white\/20 md:border-transparent md:dark:border-transparent md:bg-vert-light-gradient bg-white dark:bg-gray-800 md:!bg-transparent dark:md:bg-vert-dark-gradient pt-2\">\n<form class=\"stretch mx-2 flex flex-row gap-3 last:mb-2 md:mx-4 md:last:mb-6 lg:mx-auto lg:max-w-3xl\">\n<div class=\"relative flex h-full flex-1 md:flex-col\">\n<div class=\"flex ml-1 md:w-full md:m-auto md:mb-2 gap-0 md:gap-2 justify-center\"><img alt=\"UML Object Diagram for a Customer-Order-Product example\" class=\"alignnone size-full wp-image-980\" decoding=\"async\" height=\"374\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/customer-order-and-product-object-diagram.png\" width=\"447\"\/><\/div>\n<\/div>\n<\/form>\n<\/div>\n<h3 id=\"pJsCwgX\">\u5efa\u7acbER\u5716<\/h3>\n<p>\u985e\u5716\u8207ER\u5716\uff08\u5be6\u9ad4\u95dc\u4fc2\u5716\uff09\u90fd\u662f\u7528\u4f86\u8868\u793a\u7cfb\u7d71\u4e2d\u8cc7\u6599\u7d50\u69cb\u8207\u5be6\u9ad4\u4e4b\u9593\u95dc\u4fc2\u7684\u5efa\u6a21\u5de5\u5177\u3002<\/p>\n<p>\u985e\u5716\u4e3b\u8981\u7528\u65bc\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u986f\u793a\u985e\u5225\u3001\u5176\u5c6c\u6027\u3001\u65b9\u6cd5\u4ee5\u53ca\u8207\u5176\u4ed6\u985e\u5225\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u5b83\u901a\u5e38\u7528\u4f86\u63cf\u8ff0\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\u7684\u975c\u614b\u7d50\u69cb\u3002\u5728\u4e0a\u65b9\u7684\u7bc4\u4f8b\u985e\u5716\u4e2d\uff0c\u6240\u8b58\u5225\u7684\u985e\u5225\u5305\u62ec\u5ba2\u6236\u3001\u7522\u54c1\u548c\u8a02\u55ae\uff0c\u6bcf\u500b\u985e\u5225\u90fd\u6709\u5176\u5c0d\u61c9\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u985e\u5716\u9084\u986f\u793a\u4e86\u985e\u5225\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u4f8b\u5982\u5ba2\u6236\u8207\u8a02\u55ae\u4e4b\u9593\u7684\u4e00\u5c0d\u591a\u95dc\u4fc2\uff0c\u4ee5\u53ca\u8a02\u55ae\u8207\u7522\u54c1\u4e4b\u9593\u7684\u591a\u5c0d\u591a\u95dc\u4fc2\u3002<\/p>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u7528\u65bc\u8868\u793a\u7cfb\u7d71\u7684\u8cc7\u6599\u7d50\u69cb\u4ee5\u53ca\u7cfb\u7d71\u4e2d\u5404\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u5b83\u4e3b\u8981\u7528\u65bc\u8cc7\u6599\u5eab\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u63cf\u8ff0\u8cc7\u6599\u5eab\u7684\u908f\u8f2f\u7d50\u69cb\u3002\u5728\u4e0b\u65b9\u7684\u7bc4\u4f8b\u5be6\u9ad4\u95dc\u4fc2\u5716\u4e2d\uff0c\u6240\u8b58\u5225\u7684\u5be6\u9ad4\u5305\u62ec\u5ba2\u6236\u3001\u7522\u54c1\u548c\u8a02\u55ae\uff0c\u6bcf\u500b\u5be6\u9ad4\u90fd\u6709\u5176\u5c0d\u61c9\u7684\u5c6c\u6027\u3002\u5be6\u9ad4\u95dc\u4fc2\u5716\u4e5f\u986f\u793a\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u4f8b\u5982\u5ba2\u6236\u8207\u8a02\u55ae\u4e4b\u9593\u7684\u4e00\u5c0d\u591a\u95dc\u4fc2\uff0c\u4ee5\u53ca\u8a02\u55ae\u8207\u7522\u54c1\u4e4b\u9593\u7684\u591a\u5c0d\u591a\u95dc\u4fc2\u3002<\/p>\n<p><img alt=\"ER Diagram for a Customer-Order-Product example\" class=\"alignnone size-full wp-image-979\" decoding=\"async\" height=\"420\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/customer-order-and-product-er-diagram.png\" width=\"377\"\/><\/p>\n<p>\u96d6\u7136\u985e\u5716\u548c\u5be6\u9ad4\u95dc\u4fc2\u5716\u90fd\u662f\u7528\u4f86\u8868\u793a\u8cc7\u6599\u7d50\u69cb\u8207\u95dc\u4fc2\u7684\u5efa\u6a21\u5de5\u5177\uff0c\u4f46\u985e\u5716\u4e3b\u8981\u7528\u65bc\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u5448\u73fe\u7cfb\u7d71\u7684\u975c\u614b\u7d50\u69cb\uff0c\u800c\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u4e3b\u8981\u7528\u65bc\u8cc7\u6599\u5eab\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u63cf\u8ff0\u8cc7\u6599\u5eab\u7684\u908f\u8f2f\u7d50\u69cb\u3002<\/p>\n<h3>\u6839\u64da\u5be6\u9ad4\u95dc\u4fc2\u5716\u751f\u6210\u8cc7\u6599\u5eab\u7d50\u69cb<\/h3>\n<p>\u6839\u64da\u5148\u524d\u751f\u6210\u7684\u5be6\u9ad4\u95dc\u4fc2\u5716\uff0c\u6211\u5011\u53ef\u4ee5\u5efa\u7acb\u4e00\u500b\u8cc7\u6599\u5eab\u7d50\u69cb\uff0c\u4ee5\u5448\u73fe\u8cc7\u6599\u5eab\u7684\u908f\u8f2f\u7d50\u69cb\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u6839\u64da\u5be6\u9ad4\u95dc\u4fc2\u5716\u6240\u5efa\u7acb\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u7bc4\u4f8b\uff1a<\/p>\n<blockquote>\n<p>\u5ba2\u6236<br \/>\n\u2013 \u5ba2\u6236\u7de8\u865f\uff08\u4e3b\u9375\uff09<br \/>\n\u2013 \u540d\u7a31<br \/>\n\u2013 \u96fb\u5b50\u90f5\u4ef6<br \/>\n\u2013 \u5bc6\u78bc<\/p>\n<p>\u8a02\u55ae<br \/>\n\u2013 \u8a02\u55ae\u7de8\u865f\uff08\u4e3b\u9375\uff09<br \/>\n\u2013 \u5ba2\u6236\u7de8\u865f\uff08\u5916\u9375\uff09<br \/>\n\u2013 \u8a02\u8cfc\u65e5\u671f<br \/>\n\u2013 \u7e3d\u91d1\u984d<\/p>\n<p>\u8a02\u55ae\u7522\u54c1<br \/>\n\u2013 \u8a02\u55ae\u7de8\u865f\uff08\u5916\u9375\uff0c\u4e3b\u9375\uff09<br \/>\n\u2013 \u7522\u54c1\u7de8\u865f\uff08\u5916\u9375\uff0c\u4e3b\u9375\uff09<br \/>\n\u2013 \u6578\u91cf<\/p>\n<p>\u7522\u54c1<br \/>\n\u2013 \u7522\u54c1\u7de8\u865f\uff08\u4e3b\u9375\uff09<br \/>\n\u2013 \u540d\u7a31<br \/>\n\u2013 \u50f9\u683c<br \/>\n\u2013 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loading=\"lazy\" alt=\"Class Diagram, Object Diagram and ERD for a Customer-Order-Product example\" class=\"alignnone size-full wp-image-982\" decoding=\"async\" height=\"506\" loading=\"lazy\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/class-diagram-object-diagram-er-diagram.png\" width=\"807\"\/><\/p>\n<p>\u985e\u5716\u7528\u65bc\u6a21\u64ec\u7cfb\u7d71\u4e2d\u7684\u985e\u3001\u5176\u5c6c\u6027\u3001\u65b9\u6cd5\u548c\u95dc\u4fc2\u3002\u7269\u4ef6\u5716\u8868\u793a\u67d0\u4e00\u7279\u5b9a\u6642\u523b\u985e\u7684\u5177\u9ad4\u5be6\u4f8b\uff0c\u800cER\u5716\u5247\u7528\u65bc\u6a21\u64ec\u7cfb\u7d71\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u5448\u73fe\u5be6\u9ad4\u3001\u5176\u5c6c\u6027\u548c\u95dc\u4fc2\u3002<\/p>\n<p>\u9078\u64c7\u5408\u9069\u7684\u5716\u8868\u53d6\u6c7a\u65bc\u8edf\u9ad4\u958b\u767c\u5c08\u6848\u7684\u5177\u9ad4\u9700\u6c42\u4ee5\u53ca\u958b\u767c\u904e\u7a0b\u7684\u968e\u6bb5\u3002\u985e\u5716\u7528\u65bc\u8a2d\u8a08\u968e\u6bb5\uff0c\u7269\u4ef6\u5716\u7528\u65bc\u8abf\u8a66\u548c\u6e2c\u8a66\u7cfb\u7d71\u7684\u7279\u5b9a\u5be6\u4f8b\uff0c\u800cER\u5716\u5247\u7528\u65bc\u8cc7\u6599\u5eab\u8a2d\u8a08\u968e\u6bb5\u3002<\/p>\n<p>\u900f\u904e\u7406\u89e3\u6bcf\u7a2e\u5716\u8868\u7684\u5dee\u7570\u8207\u7528\u9014\uff0c\u8edf\u9ad4\u958b\u767c\u4eba\u54e1\u53ef\u4ee5\u9078\u64c7\u6700\u9069\u5408\u5176\u9700\u6c42\u7684\u5716\u8868\uff0c\u4e26\u78ba\u4fdd\u8edf\u9ad4\u958b\u767c\u5c08\u6848\u7684\u6210\u529f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u985e\u5716\u8207\u7269\u4ef6\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\u7684\u6bd4\u8f03 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