![\"Chalkboard-style](\"https:\/\/www.diagrams-ai.com\/wp-content\/uploads\/2026\/03\/dfd-vs-erd-system-design-infographic-chalkboard-style.jpg\"\/)
<\/figure>\n<\/div>\n\u7406\u89e3\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09 \ud83d\udd04<\/h2>\n
\u8cc7\u6599\u6d41\u7a0b\u5716\u5c08\u6ce8\u65bc\u8cc7\u6599\u5728\u7cfb\u7d71\u4e2d\u7684\u6d41\u52d5\u3002\u5b83\u53ef\u8996\u5316\u8cc7\u8a0a\u5982\u4f55\u88ab\u8655\u7406\u3001\u8f49\u63db\u8207\u5132\u5b58\u3002DFD \u4e0d\u95dc\u6ce8\u7269\u7406\u5be6\u4f5c\u7d30\u7bc0\u6216\u6d41\u7a0b\u7684\u6642\u9593\u9806\u5e8f\uff0c\u800c\u662f\u63d0\u4f9b\u8cc7\u8a0a\u908f\u8f2f\u6d41\u52d5\u7684\u9ad8\u968e\u8996\u5716\u3002<\/p>\n
DFD \u7684\u6838\u5fc3\u5143\u4ef6<\/h3>\n\n- \u5916\u90e8\u5be6\u9ad4\uff1a<\/strong> \u9019\u4e9b\u4ee3\u8868\u7cfb\u7d71\u908a\u754c\u4ee5\u5916\u7684\u8cc7\u6599\u4f86\u6e90\u6216\u76ee\u7684\u5730\u3002\u5b83\u5011\u53ef\u80fd\u662f\u4f7f\u7528\u8005\u3001\u5176\u4ed6\u7cfb\u7d71\u6216\u7d44\u7e54\u3002\u5b83\u5011\u6703\u555f\u52d5\u6216\u63a5\u6536\u8cc7\u6599\uff0c\u4f46\u5728\u672c\u6a21\u578b\u7684\u8108\u7d61\u4e2d\u4e0d\u6703\u8655\u7406\u8cc7\u6599\u3002<\/li>\n
- \u6d41\u7a0b\uff1a<\/strong> \u4ee5\u5713\u89d2\u77e9\u5f62\u8868\u793a\uff0c\u9019\u4e9b\u662f\u5c07\u8f38\u5165\u8cc7\u6599\u8f49\u63db\u70ba\u8f38\u51fa\u8cc7\u6599\u7684\u6d3b\u52d5\u3002\u6d41\u7a0b\u6703\u6539\u8b8a\u901a\u904e\u5176\u7684\u8cc7\u8a0a\u72c0\u614b\u6216\u5f62\u5f0f\u3002\u6bcf\u500b\u6d41\u7a0b\u90fd\u5fc5\u9808\u81f3\u5c11\u6709\u4e00\u500b\u8f38\u5165\u8207\u4e00\u500b\u8f38\u51fa\uff0c\u9019\u4e00\u9ede\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n
- \u8cc7\u6599\u5132\u5b58\uff1a<\/strong> \u9019\u4e9b\u662f\u8cc7\u6599\u88ab\u5132\u5b58\u4ee5\u4f9b\u5f8c\u7e8c\u4f7f\u7528\u7684\u5132\u5b58\u5eab\u3002\u5728 DFD \u4e2d\uff0c\u5b83\u5011\u4ee3\u8868\u6a94\u6848\u3001\u8cc7\u6599\u5eab\u6216\u6b78\u6a94\u3002\u5b83\u5011\u4e26\u4e0d\u4ee3\u8868\u7279\u5b9a\u6280\u8853\uff0c\u50c5\u8868\u793a\u6301\u4e45\u6027\u5132\u5b58\u7684\u5b58\u5728\u3002<\/li>\n
- \u8cc7\u6599\u6d41\uff1a<\/strong> \u4ee5\u7bad\u982d\u8868\u793a\uff0c\u9019\u4e9b\u986f\u793a\u8cc7\u6599\u79fb\u52d5\u7684\u65b9\u5411\u3002\u6bcf\u4e00\u500b\u8cc7\u6599\u6d41\u90fd\u61c9\u6a19\u793a\u51fa\u6240\u50b3\u8f38\u8cc7\u6599\u5c01\u5305\u7684\u540d\u7a31\u3002\u8cc7\u6599\u6d41\u9023\u7d50\u5be6\u9ad4\u3001\u6d41\u7a0b\u8207\u5132\u5b58\u3002<\/li>\n<\/ul>\n
\u62bd\u8c61\u5c64\u7d1a<\/h3>\n
DFD \u901a\u5e38\u4ee5\u5c64\u7d1a\u65b9\u5f0f\u5efa\u7acb\uff0c\u4ee5\u7ba1\u7406\u8907\u96dc\u5ea6\uff1a<\/p>\n
\n- \u4e0a\u4e0b\u6587\u5716\uff08\u7b2c 0 \u5c64\uff09\uff1a<\/strong> \u9019\u662f\u6700\u9ad8\u968e\u7684\u8996\u5716\u3002\u5b83\u5c07\u6574\u500b\u7cfb\u7d71\u8996\u70ba\u55ae\u4e00\u6d41\u7a0b\uff0c\u4e26\u8b58\u5225\u6240\u6709\u8207\u5176\u4e92\u52d5\u7684\u5916\u90e8\u5be6\u9ad4\u3002\u5b83\u660e\u78ba\u5b9a\u7fa9\u4e86\u7cfb\u7d71\u7684\u908a\u754c\u3002<\/li>\n
- \u7b2c 1 \u5c64\u5716\uff1a<\/strong> \u5b83\u5c07\u4e0a\u4e0b\u6587\u5716\u4e2d\u7684\u55ae\u4e00\u6d41\u7a0b\u5206\u89e3\u70ba\u4e3b\u8981\u7684\u5b50\u6d41\u7a0b\u3002\u5b83\u63d0\u4f9b\u4e86\u7cfb\u7d71\u5167\u90e8\u5982\u4f55\u8655\u7406\u8cc7\u6599\u7684\u66f4\u591a\u7d30\u7bc0\uff0c\u800c\u4e0d\u6703\u9677\u5165\u908f\u8f2f\u7d30\u7bc0\u4e2d\u3002<\/li>\n
- \u7b2c 2 \u5c64\u53ca\u66f4\u9ad8\u5c64\uff1a<\/strong> \u9019\u4e9b\u5716\u8868\u5c07\u7b2c 1 \u5c64\u4e2d\u7684\u7279\u5b9a\u6d41\u7a0b\u9032\u4e00\u6b65\u7d30\u5206\u3002\u6b64\u5c64\u7d1a\u901a\u5e38\u7528\u65bc\u8907\u96dc\u6a21\u7d44\uff0c\u5176\u4e2d\u9700\u8981\u56b4\u8b39\u5b9a\u7fa9\u7279\u5b9a\u7684\u8cc7\u6599\u8f49\u63db\u3002<\/li>\n<\/ul>\n
\u4f55\u6642\u61c9\u7528 DFD<\/h3>\n
DFD \u5728\u9700\u6c42\u6536\u96c6\u8207\u529f\u80fd\u8a2d\u8a08\u968e\u6bb5\u6700\u70ba\u6709\u6548\u3002\u5b83\u5e6b\u52a9\u5229\u5bb3\u95dc\u4fc2\u4eba\u7406\u89e3\u7cfb\u7d71\u884c\u70ba\uff0c\u800c\u4e0d\u6703\u88ab\u6280\u8853\u9650\u5236\u6240\u5e72\u64fe\u3002\u5b83\u7279\u5225\u9069\u7528\u65bc\uff1a<\/p>\n
\n- \u8b58\u5225\u907a\u6f0f\u7684\u8cc7\u6599\u9700\u6c42\u3002<\/li>\n
- \u5411\u975e\u6280\u8853\u5229\u5bb3\u95dc\u4fc2\u4eba\u50b3\u9054\u696d\u52d9\u6d41\u7a0b\u3002<\/li>\n
- \u5b9a\u7fa9\u5c08\u6848\u7bc4\u570d\u3002<\/li>\n
- \u900f\u904e\u8b58\u5225\u654f\u611f\u8cc7\u6599\u9032\u5165\u8207\u96e2\u958b\u7684\u4f4d\u7f6e\uff0c\u5206\u6790\u8cc7\u8a0a\u5b89\u5168\u3002<\/li>\n<\/ul>\n
\u7406\u89e3\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09 \ud83d\udd17<\/h2>\n
\u96d6\u7136 DFD \u8ffd\u8e64\u8cc7\u6599\u7684\u79fb\u52d5\uff0c\u4f46\u5be6\u9ad4\u95dc\u4fc2\u5716\u5247\u5c08\u6ce8\u65bc\u7d50\u69cb\u3002ERD \u662f\u4e00\u7a2e\u6982\u5ff5\u6a21\u578b\uff0c\u7528\u65bc\u5b9a\u7fa9\u8cc7\u6599\u5eab\u5167\u7684\u8cc7\u6599\u9700\u6c42\u8207\u95dc\u4fc2\u3002\u5b83\u63cf\u8ff0\u8cc7\u6599\u7684\u975c\u614b\u7279\u6027\uff0c\u78ba\u4fdd\u8cc7\u6599\u5b8c\u6574\u6027\u8207\u898f\u7bc4\u5316\u3002<\/p>\n
ERD \u7684\u6838\u5fc3\u7d44\u4ef6<\/h3>\n\n- \u5be6\u9ad4\uff1a<\/strong>\u4ee5\u77e9\u5f62\u8868\u793a\uff0c\u9019\u4e9b\u662f\u73fe\u5be6\u4e16\u754c\u4e2d\u7684\u7269\u4ef6\u6216\u6982\u5ff5\uff0c\u8cc7\u6599\u6703\u5132\u5b58\u5728\u5176\u4e2d\u3002\u7bc4\u4f8b\u5305\u62ec\u300c\u5ba2\u6236\u300d\u3001\u300c\u8a02\u55ae\u300d\u6216\u300c\u7522\u54c1\u300d\u3002\u5be6\u9ad4\u662f\u8cc7\u6599\u7d50\u69cb\u7684\u69cb\u5efa\u6a21\u584a\u3002<\/li>\n
- \u5c6c\u6027\uff1a<\/strong>\u9019\u4e9b\u662f\u5be6\u9ad4\u7684\u5c6c\u6027\u6216\u7279\u5fb5\u3002\u901a\u5e38\u5217\u5728\u5be6\u9ad4\u6846\u5167\u6216\u8207\u5176\u76f8\u9023\u3002\u5c6c\u6027\u5b9a\u7fa9\u4e86\u5177\u9ad4\u7684\u8cc7\u6599\u9ede\uff0c\u4f8b\u5982\u300c\u5ba2\u6236\u7de8\u865f\u300d\u6216\u300c\u8a02\u55ae\u65e5\u671f\u300d\u3002\u67d0\u4e9b\u5c6c\u6027\u4f5c\u70ba\u4e3b\u9375\uff0c\u552f\u4e00\u8b58\u5225\u4e00\u7b46\u8a18\u9304\u3002<\/li>\n
- \u95dc\u4fc2\uff1a<\/strong>\u4ee5\u83f1\u5f62\u6216\u7dda\u689d\u8868\u793a\uff0c\u9019\u4e9b\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u4e92\u52d5\u65b9\u5f0f\u3002\u95dc\u4fc2\u8868\u793a\u4e00\u500b\u5be6\u9ad4\u4e2d\u7684\u8a18\u9304\u8207\u53e6\u4e00\u500b\u5be6\u9ad4\u4e2d\u7684\u8a18\u9304\u76f8\u95dc\u806f\u3002<\/li>\n
- \u57fa\u6578\uff1a<\/strong>\u9019\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u6578\u91cf\u95dc\u4fc2\u3002\u5e38\u898b\u7684\u57fa\u6578\u5305\u62ec\u4e00\u5c0d\u4e00\uff081:1\uff09\u3001\u4e00\u5c0d\u591a\uff081:N\uff09\u548c\u591a\u5c0d\u591a\uff08M:N\uff09\u3002\u7406\u89e3\u57fa\u6578\u5c0d\u65bc\u9632\u6b62\u8cc7\u6599\u91cd\u8907\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<\/ul>\n
\u898f\u7bc4\u5316\u8207\u8cc7\u6599\u5b8c\u6574\u6027<\/h3>\n
ERD \u901a\u5e38\u662f\u898f\u7bc4\u5316\u7684\u8d77\u9ede\u3002\u898f\u7bc4\u5316\u662f\u7d44\u7e54\u8cc7\u6599\u4ee5\u6e1b\u5c11\u91cd\u8907\u4e26\u63d0\u5347\u5b8c\u6574\u6027\u7684\u904e\u7a0b\u3002ERD \u53ef\u5e6b\u52a9\u5728\u5efa\u7acb\u5be6\u969b\u8cc7\u6599\u8868\u4e4b\u524d\uff0c\u8996\u89ba\u5316\u908f\u8f2f\u7d50\u69cb\u3002\u5b83\u78ba\u4fdd\uff1a<\/p>\n
\n- \u8cc7\u6599\u4e0d\u6703\u7121\u8b02\u5730\u91cd\u8907\u3002<\/li>\n
- \u53c3\u8003\u5b8c\u6574\u6027\u5f97\u4ee5\u7dad\u6301\uff08\u4f8b\u5982\uff0c\u8a02\u55ae\u7121\u6cd5\u5728\u6c92\u6709\u5ba2\u6236\u7684\u60c5\u6cc1\u4e0b\u5b58\u5728\uff09\u3002<\/li>\n
- \u5982\u552f\u4e00\u6027\u8207\u5fc5\u586b\u6b04\u4f4d\u7b49\u7d04\u675f\u689d\u4ef6\u6e05\u6670\u660e\u78ba\u3002<\/li>\n<\/ul>\n
\u4f55\u6642\u61c9\u7528 ERD<\/h3>\n
ERD \u5728\u8cc7\u6599\u5eab\u8a2d\u8a08\u968e\u6bb5\u81f3\u95dc\u91cd\u8981\u3002\u5b83\u5011\u5f4c\u88dc\u4e86\u696d\u52d9\u9700\u6c42\u8207\u6280\u8853\u5be6\u73fe\u4e4b\u9593\u7684\u5dee\u8ddd\u3002\u5b83\u5011\u6700\u9069\u5408\u5728\u4ee5\u4e0b\u60c5\u6cc1\u4f7f\u7528\uff1a<\/p>\n
\n- \u8a2d\u8a08\u95dc\u4fc2\u578b\u8cc7\u6599\u5eab\u7684\u7d50\u69cb\u3002<\/li>\n
- \u5b9a\u7fa9\u8cc7\u6599\u7d04\u675f\u8207\u9a57\u8b49\u898f\u5247\u3002<\/li>\n
- \u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u4e2d\u8cc7\u6599\u7684\u4e00\u81f4\u6027\u3002<\/li>\n
- \u898f\u5283\u8cc7\u6599\u6aa2\u7d22\u6548\u7387\u8207\u7d22\u5f15\u7b56\u7565\u3002<\/li>\n<\/ul>\n
\u95dc\u9375\u5dee\u7570\u4e00\u76ee\u4e86\u7136 \ud83c\udd9a<\/h2>\n
\u5c07\u9019\u5169\u500b\u6a21\u578b\u4e26\u5217\u6bd4\u8f03\uff0c\u80fd\u7a81\u986f\u5b83\u5011\u622a\u7136\u4e0d\u540c\u7684\u76ee\u7684\u3002\u5118\u7ba1\u5b83\u5011\u5728\u8996\u89ba\u8907\u96dc\u5ea6\u4e0a\u53ef\u80fd\u770b\u4f3c\u76f8\u4f3c\uff0c\u4f46\u5176\u8a2d\u8a08\u610f\u5716\u537b\u6709\u986f\u8457\u5dee\u7570\u3002<\/p>\n
\n\n\n\u529f\u80fd<\/th>\n \u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09<\/th>\n \u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09<\/th>\n<\/tr>\n<\/thead>\n \n\n\u4e3b\u8981\u91cd\u9ede<\/strong><\/td>\n\u6d41\u7a0b\u8207\u8cc7\u6599\u6d41\u52d5<\/td>\n \u8cc7\u6599\u7d50\u69cb\u8207\u95dc\u4fc2<\/td>\n<\/tr>\n \n\u6642\u9593\u7dad\u5ea6<\/strong><\/td>\n\u52d5\u614b\uff08\u986f\u793a\u96a8\u6642\u9593\u6d41\u52d5\uff09<\/td>\n \u975c\u614b\uff08\u986f\u793a\u67d0\u4e00\u9ede\u7684\u7d50\u69cb\uff09<\/td>\n<\/tr>\n \n\u95dc\u9375\u554f\u984c<\/strong><\/td>\n\u8cc7\u6599\u5982\u4f55\u79fb\u52d5\uff1f<\/td>\n \u5132\u5b58\u4e86\u54ea\u4e9b\u8cc7\u6599\uff0c\u4ee5\u53ca\u5b83\u5011\u662f\u5982\u4f55\u9023\u7d50\u7684\uff1f<\/td>\n<\/tr>\n \n\u76ee\u6a19\u53d7\u773e<\/strong><\/td>\n\u696d\u52d9\u5206\u6790\u5e2b\u3001\u5229\u5bb3\u95dc\u4fc2\u4eba<\/td>\n \u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u3001\u5f8c\u7aef\u958b\u767c\u4eba\u54e1<\/td>\n<\/tr>\n \n\u751f\u547d\u9031\u671f\u968e\u6bb5<\/strong><\/td>\n\u9700\u6c42\u3001\u529f\u80fd\u8a2d\u8a08<\/td>\n \u8cc7\u6599\u5eab\u8a2d\u8a08\u3001\u5be6\u4f5c<\/td>\n<\/tr>\n \n\u908f\u8f2f vs. \u5132\u5b58<\/strong><\/td>\n\u8457\u91cd\u65bc\u908f\u8f2f<\/td>\n \u8457\u91cd\u65bc\u5132\u5b58<\/td>\n<\/tr>\n \n\u8907\u96dc\u5ea6<\/strong><\/td>\n\u7531\u65bc\u8a31\u591a\u6d41\u7a0b\uff0c\u53ef\u80fd\u8b8a\u5f97\u8907\u96dc<\/td>\n \u7531\u65bc\u95dc\u4fc2\uff0c\u53ef\u80fd\u8b8a\u5f97\u8907\u96dc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u4f55\u6642\u61c9\u512a\u5148\u8003\u616e\u8cc7\u6599\u6d41\u7a0b\u5efa\u6a21 \ud83d\udcc9<\/h2>\n
\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u5883\u4e0b\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u6703\u6210\u70ba\u7cfb\u7d71\u8a2d\u8a08\u7684\u4e3b\u8981\u5de5\u5177\u3002\u7576\u696d\u52d9\u908f\u8f2f\u662f\u7cfb\u7d71\u4e2d\u6700\u8907\u96dc\u7684\u90e8\u5206\u6642\uff0c\u512a\u5148\u9078\u64c7DFD\u901a\u5e38\u662f\u6b63\u78ba\u7684\u9014\u5f91\u3002<\/p>\n
\n- \u5de5\u4f5c\u6d41\u7a0b\u81ea\u52d5\u5316\uff1a<\/strong> \u5982\u679c\u7cfb\u7d71\u6d89\u53ca\u8907\u96dc\u7684\u6838\u51c6\u93c8\u3001\u72c0\u614b\u8b8a\u66f4\u6216\u591a\u91cd\u6b65\u9a5f\u7684\u4ea4\u6613\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u80fd\u660e\u78ba\u91d0\u6e05\u64cd\u4f5c\u9806\u5e8f\uff0c\u4e26\u5354\u52a9\u8b58\u5225\u6d41\u7a0b\u4e2d\u7684\u74f6\u9838\u3002<\/li>\n
- \u5916\u90e8\u6574\u5408\uff1a<\/strong> \u7576\u7cfb\u7d71\u8207\u8a31\u591a\u5916\u90e8API\u6216\u820a\u6709\u7cfb\u7d71\u4e92\u52d5\u6642\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u80fd\u5e6b\u52a9\u6a19\u793a\u8cc7\u6599\u7684\u9032\u5165\u8207\u96e2\u958b\u9ede\uff0c\u907f\u514d\u7cfb\u7d71\u9593\u4ea4\u63a5\u6642\u767c\u751f\u8cc7\u6599\u907a\u5931\u3002<\/li>\n
- \u5b89\u5168\u5be9\u8a08\uff1a<\/strong> \u5b89\u5168\u5718\u968a\u7d93\u5e38\u4f7f\u7528\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u8ffd\u8e64\u654f\u611f\u8cc7\u6599\u5728\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u6d41\u52d5\u8def\u5f91\uff0c\u4e26\u8b58\u5225\u9700\u8981\u52a0\u5bc6\u6216\u5f37\u5236\u57f7\u884c\u5b58\u53d6\u63a7\u5236\u7684\u7bc0\u9ede\u3002<\/li>\n
- \u696d\u52d9\u6d41\u7a0b\u518d\u9020\uff1a<\/strong> \u5728\u512a\u5316\u73fe\u6709\u5de5\u4f5c\u6d41\u7a0b\u6642\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u53ef\u4f5c\u70ba\u57fa\u6e96\u3002\u60a8\u53ef\u5c07\u300c\u73fe\u72c0\u300d\u6d41\u7a0b\u8207\u300c\u672a\u4f86\u76ee\u6a19\u300d\u6d41\u7a0b\u9032\u884c\u6bd4\u8f03\uff0c\u4ee5\u8861\u91cf\u6539\u5584\u7a0b\u5ea6\u3002<\/li>\n<\/ul>\n
\u5728\u9019\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u904e\u65e9\u8457\u91cd\u65bc\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u53ef\u80fd\u6703\u63a9\u84cb\u7cfb\u7d71\u7684\u908f\u8f2f\u3002\u8cc7\u6599\u5eab\u5373\u4f7f\u8a2d\u8a08\u5f97\u5b8c\u7f8e\u7121\u7f3a\uff0c\u82e5\u6d41\u7a0b\u908f\u8f2f\u6709\u8aa4\uff0c\u61c9\u7528\u7a0b\u5f0f\u4ecd\u7121\u6cd5\u6eff\u8db3\u4f7f\u7528\u8005\u9700\u6c42\u3002<\/p>\n
\u4f55\u6642\u61c9\u512a\u5148\u8003\u616e\u8cc7\u6599\u7d50\u69cb\u5efa\u6a21 \ud83c\udfd7\ufe0f<\/h2>\n
\u76f8\u53cd\u5730\uff0c\u6709\u4e9b\u60c5\u5883\u4e0b\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u8207\u7d50\u69cb\u662f\u6210\u529f\u95dc\u9375\u3002\u7576\u8cc7\u6599\u91cf\u3001\u95dc\u4fc2\u8207\u7d04\u675f\u662f\u4e3b\u8981\u63a8\u52d5\u529b\u6642\uff0c\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u61c9\u512a\u5148\u8003\u91cf\u3002<\/p>\n
\n- \u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\uff1a<\/strong> \u5728\u5206\u6790\u5e73\u53f0\u6216\u8cc7\u6599\u5009\u5132\u7b49\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6599\u7684\u7d50\u69cb\u81f3\u95dc\u91cd\u8981\u3002ERD \u78ba\u4fdd\u8cc7\u6599\u7d50\u69cb\u80fd\u652f\u63f4\u8907\u96dc\u7684\u67e5\u8a62\u8207\u805a\u5408\u3002<\/li>\n
- \u820a\u7cfb\u7d71\u9077\u79fb\uff1a<\/strong> \u5728\u5c07\u8cc7\u6599\u5f9e\u820a\u7cfb\u7d71\u9077\u79fb\u5230\u65b0\u7cfb\u7d71\u6642\uff0c\u7406\u89e3\u73fe\u6709\u7684\u95dc\u4fc2\u81f3\u95dc\u91cd\u8981\u3002ERD \u6709\u52a9\u65bc\u5c07\u820a\u7684\u8cc7\u6599\u8868\u6620\u5c04\u5230\u65b0\u7684\u7d50\u69cb\uff0c\u78ba\u4fdd\u8cc7\u6599\u4e0d\u6703\u907a\u5931\u6216\u640d\u58de\u3002<\/li>\n
- \u5408\u898f\u8207\u6cbb\u7406\uff1a<\/strong> \u91d1\u878d\u8207\u91ab\u7642\u7b49\u7522\u696d\u9700\u8981\u56b4\u683c\u7684\u8cc7\u6599\u6cbb\u7406\u3002ERD \u8a18\u9304\u8cc7\u6599\u5b58\u653e\u7684\u4f4d\u7f6e\u3001\u64c1\u6709\u8005\u4ee5\u53ca\u8207\u5176\u4ed6\u8cc7\u6599\u9ede\u7684\u95dc\u806f\u65b9\u5f0f\uff0c\u6709\u52a9\u65bc\u5408\u898f\u5831\u544a\u3002<\/li>\n
- \u9ad8\u6548\u80fd\u9700\u6c42\uff1a<\/strong> \u82e5\u7cfb\u7d71\u9700\u8981\u5feb\u901f\u7684\u8b80\u5beb\u64cd\u4f5c\uff0cERD \u53ef\u5f15\u5c0e\u7d22\u5f15\u7b56\u7565\u8207\u8cc7\u6599\u5206\u5272\u3002\u7406\u89e3\u8cc7\u6599\u4e4b\u9593\u7684\u95dc\u4fc2\u6709\u52a9\u65bc\u9ad8\u6548\u8a2d\u8a08\u9023\u63a5\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n
\u5728\u9019\u4e9b\u60c5\u5883\u4e0b\u8df3\u904e ERD \u53ef\u80fd\u5c0e\u81f4\u51fa\u73fe\u300c\u7fa9\u5927\u5229\u9eb5\u5f0f\u8cc7\u6599\u5eab\u300d\uff0c\u5176\u4e2d\u8cc7\u6599\u8868\u91cd\u8907\u3001\u95dc\u4fc2\u6a21\u7cca\uff0c\u4e14\u6548\u80fd\u6703\u96a8\u6642\u9593\u9010\u6f38\u4e0b\u964d\u3002<\/p>\n
\u5169\u8005\u6574\u5408\u4ee5\u5efa\u7acb\u7a69\u5065\u7684\u67b6\u69cb \ud83e\udd1d<\/h2>\n
\u96d6\u7136\u5340\u5206 DFD \u8207 ERD \u6709\u5176\u7528\u8655\uff0c\u4f46\u6700\u6210\u529f\u7684\u7cfb\u7d71\u901a\u5e38\u6703\u540c\u6642\u4f7f\u7528\u5169\u8005\u3002\u5b83\u5011\u662f\u4e92\u88dc\u7684\uff0c\u800c\u975e\u4e92\u65a5\u7684\u3002\u7a69\u5065\u7684\u7cfb\u7d71\u8a2d\u8a08\u6d41\u7a0b\u901a\u5e38\u662f\u7531\u6d41\u7a0b\u8d70\u5411\u7d50\u69cb\u3002<\/p>\n
\u4f9d\u5e8f\u9032\u884c\u7684\u65b9\u6cd5<\/h3>\n\n- \u4f7f\u7528 DFD \u5b9a\u7fa9\u7bc4\u570d\uff1a<\/strong> \u5f9e\u4e0a\u4e0b\u6587\u5716\u958b\u59cb\uff0c\u4ee5\u7406\u89e3\u7cfb\u7d71\u7684\u908a\u754c\u3002\u8b58\u5225\u6240\u6709\u8f38\u5165\u8207\u8f38\u51fa\u3002<\/li>\n
- \u5206\u89e3\u6d41\u7a0b\uff1a<\/strong> \u5c07\u6d41\u7a0b\u62c6\u89e3\uff0c\u4ee5\u7406\u89e3\u6240\u9700\u7684\u7279\u5b9a\u8cc7\u6599\u8f49\u63db\u3002<\/li>\n
- \u8b58\u5225\u8cc7\u6599\u5be6\u9ad4\uff1a<\/strong> \u5728\u5206\u6790\u8cc7\u6599\u6d41\u7a0b\u6642\uff0c\u8b58\u5225\u6b63\u5728\u79fb\u52d5\u7684\u6301\u4e45\u6027\u7269\u4ef6\u3002\u9019\u4e9b\u5c07\u6210\u70ba ERD \u7684\u5019\u9078\u5be6\u9ad4\u3002<\/li>\n
- \u8a2d\u8a08 ERD\uff1a<\/strong> \u5efa\u7acb\u5be6\u9ad4\u95dc\u4fc2\u5716\uff0c\u4ee5\u5b9a\u7fa9\u9019\u4e9b\u5be6\u9ad4\u5982\u4f55\u5132\u5b58\u8207\u9023\u7d50\u3002<\/li>\n
- \u9a57\u8b49\u6d41\u7a0b\uff1a<\/strong> \u5c07\u8cc7\u6599\u6d41\u7a0b\u5c0d\u61c9\u56de\u8cc7\u6599\u5eab\u8cc7\u6599\u8868\u3002\u78ba\u4fdd DFD \u4e2d\u7684\u6bcf\u500b\u6d41\u7a0b\u5728 ERD \u4e2d\u90fd\u6709\u5c0d\u61c9\u7684\u5132\u5b58\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n
\u8cc7\u6599\u5132\u5b58\u7684\u5c0d\u61c9<\/h3>\n
\u5728 DFD \u4e2d\uff0c\u8cc7\u6599\u5132\u5b58\u662f\u4e00\u500b\u901a\u7528\u7684\u4f54\u4f4d\u7b26\u3002\u5728 ERD \u4e2d\uff0c\u540c\u4e00\u500b\u8cc7\u6599\u5132\u5b58\u6703\u8f49\u63db\u70ba\u8a73\u7d30\u7684\u8cc7\u6599\u8868\u5b9a\u7fa9\u3002\u5c0d\u61c9\u904e\u7a0b\u5305\u62ec\uff1a<\/p>\n
\n- \u5c07 DFD \u7684\u8cc7\u6599\u5132\u5b58\u8f49\u63db\u70ba ERD \u7684\u5be6\u9ad4\u3002<\/li>\n
- \u78ba\u4fdd DFD \u6d41\u7a0b\u4e2d\u7684\u6240\u6709\u5c6c\u6027\u90fd\u5728 ERD \u5c6c\u6027\u4e2d\u6709\u6240\u5c0d\u61c9\u3002<\/li>\n
- \u6aa2\u67e5 ERD \u4e2d\u7684\u57fa\u6578\u662f\u5426\u652f\u63f4 DFD \u6d41\u7a0b\u4e2d\u7684\u591a\u91cd\u6027\u3002<\/li>\n<\/ul>\n
\u4f8b\u5982\uff0c\u82e5 DFD \u663e\u793a\u300c\u5ba2\u6236\u300d\u767c\u9001\u591a\u7b46\u300c\u8a02\u55ae\u300d\uff0cERD \u5fc5\u9808\u53cd\u6620\u5ba2\u6236\u8207\u8a02\u55ae\u5be6\u9ad4\u4e4b\u9593\u7684\u300c\u4e00\u5c0d\u591a\u300d\u95dc\u4fc2\u3002\u82e5 DFD \u6697\u793a\u8907\u96dc\u7684\u591a\u5c0d\u591a\u95dc\u4fc2\uff08\u4f8b\u5982\u300c\u5b78\u751f\u300d\u8207\u300c\u8ab2\u7a0b\u300d\uff09\uff0cERD \u5fc5\u9808\u5f15\u5165\u95dc\u806f\u5be6\u9ad4\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\u3002<\/p>\n
\u5e38\u898b\u9677\u9631\u9700\u907f\u514d \u26a0\ufe0f<\/h2>\n
\u6df7\u7528\u6216\u8aa4\u7528\u9019\u4e9b\u6a21\u578b\u53ef\u80fd\u5c0e\u81f4\u56b4\u91cd\u7684\u6280\u8853\u8ca0\u50b5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9700\u7559\u610f\u7684\u5e38\u898b\u932f\u8aa4\u3002<\/p>\n
1. \u6df7\u6dc6\u908f\u8f2f\u8207\u5132\u5b58<\/h3>\n
\u4e0d\u8981\u5728ERD\u4e2d\u5305\u542b\u8655\u7406\u908f\u8f2f\u3002ERD\u61c9\u5b9a\u7fa9\u7d50\u69cb\uff0c\u800c\u975e\u884c\u70ba\u3002\u5982\u679c\u4f60\u767c\u73fe\u81ea\u5df1\u5728ERD\u4e2d\u7e6a\u88fd\u4ee3\u8868\u300c\u8655\u7406\u300d\u7684\u7bad\u982d\uff0c\u4f60\u5f88\u53ef\u80fd\u662f\u5728\u63cf\u8ff0DFD\u3002<\/p>\n
2. DFD\u904e\u5ea6\u5efa\u6a21<\/h3>\n
DFD\u4e0d\u61c9\u662f\u7a0b\u5f0f\u78bc\u7684\u6d41\u7a0b\u5716\u3002\u5b83\u4e0d\u61c9\u8a73\u7d30\u63cf\u8ff0\u6bcf\u4e00\u689d\u689d\u4ef6\u5206\u652f\u6216\u932f\u8aa4\u8655\u7406\u6d41\u7a0b\u3002\u61c9\u5c07DFD\u4fdd\u6301\u5728\u908f\u8f2f\u5c64\u7d1a\u3002\u5982\u679c\u4f60\u8a73\u7d30\u5217\u51fa\u6bcf\u4e00\u689d\u300cif-else\u300d\u8a9e\u53e5\uff0c\u5716\u8868\u5c07\u8b8a\u5f97\u96e3\u4ee5\u95b1\u8b80\uff0c\u4e26\u55aa\u5931\u5176\u9ad8\u968e\u6982\u89c0\u50f9\u503c\u3002<\/p>\n
3. \u5ffd\u7565ERD\u4e2d\u7684\u57fa\u6578<\/h3>\n
\u5728\u672a\u5b9a\u7fa9\u57fa\u6578\u7684\u60c5\u6cc1\u4e0b\u65bc\u5be6\u9ad4\u4e4b\u9593\u7e6a\u88fd\u7dda\u689d\u662f\u4e00\u7a2e\u5e38\u898b\u932f\u8aa4\u3002\u55ae\u7d14\u7684\u7dda\u689d\u7121\u6cd5\u8aaa\u660e\u4e00\u4f4d\u5ba2\u6236\u53ef\u4ee5\u6709\u96f6\u7b46\u8a02\u55ae\u6216\u4e00\u767e\u842c\u7b46\u8a02\u55ae\u3002\u52d9\u5fc5\u660e\u78ba\u6a19\u793a1:1\u30011:N\u6216M:N\uff0c\u4ee5\u907f\u514d\u6b67\u7fa9\u3002<\/p>\n
4. \u5ffd\u7565\u8cc7\u6599\u5c6c\u6027<\/h3>\n
\u7576\u8cc7\u6599\u5c6c\u6027\u6a21\u7cca\u6642\uff0c\u5169\u7a2e\u5716\u8868\u90fd\u6703\u53d7\u640d\u3002\u5728DFD\u4e2d\uff0c\u8cc7\u6599\u6d41\u61c9\u4f7f\u7528\u63cf\u8ff0\u6027\u540d\u7a31\uff08\u4f8b\u5982\u300c\u5df2\u9a57\u8b49\u7684\u4ed8\u6b3e\u8cc7\u8a0a\u300d\u800c\u975e\u300c\u8cc7\u6599\u300d\uff09\u3002\u5728ERD\u4e2d\uff0c\u5c6c\u6027\u61c9\u76e1\u53ef\u80fd\u5b9a\u7fa9\u8cc7\u6599\u985e\u578b\u8207\u7d04\u675f\u689d\u4ef6\u3002<\/p>\n
5. \u5275\u5efa\u5b64\u5152\u6d41\u7a0b<\/h3>\n
\u5728DFD\u4e2d\uff0c\u6d41\u7a0b\u7121\u6cd5\u5728\u6c92\u6709\u8cc7\u6599\u6d41\u5165\u6216\u6d41\u51fa\u7684\u60c5\u6cc1\u4e0b\u5b58\u5728\u3002\u78ba\u4fdd\u6bcf\u500b\u6d41\u7a0b\u6846\u81f3\u5c11\u6709\u4e00\u500b\u6d41\u5165\u548c\u4e00\u500b\u6d41\u51fa\u7684\u8cc7\u6599\u6d41\u3002\u5b64\u5152\u6d41\u7a0b\u8868\u793a\u5b58\u5728\u7121\u6548\u908f\u8f2f\u6216\u907a\u6f0f\u7684\u8cc7\u6599\u9700\u6c42\u3002<\/p>\n
\u6587\u6a94\u7de8\u5beb\u7684\u6700\u4f73\u5be6\u52d9 \ud83d\udcdd<\/h2>\n
\u70ba\u7dad\u6301\u6e05\u6670\u5ea6\u8207\u5be6\u7528\u6027\uff0c\u8acb\u9075\u5faa\u9019\u4e9b\u6587\u6a94\u6a19\u6e96\u3002<\/p>\n
\n- \u547d\u540d\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u5169\u500b\u5716\u8868\u4e2d\u4f7f\u7528\u76f8\u540c\u7684\u8853\u8a9e\u3002\u5982\u679cDFD\u7a31\u5176\u70ba\u300c\u5ba2\u6236\u300d\uff0cERD\u4e5f\u61c9\u7a31\u70ba\u300c\u5ba2\u6236\u300d\uff0c\u800c\u975e\u300c\u4f7f\u7528\u8005\u300d\u3002\u4e00\u81f4\u6027\u53ef\u964d\u4f4e\u5718\u968a\u7684\u8a8d\u77e5\u8ca0\u8377\u3002<\/li>\n
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- \u95dc\u4fc2\uff1a<\/strong>\u4ee5\u83f1\u5f62\u6216\u7dda\u689d\u8868\u793a\uff0c\u9019\u4e9b\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u4e92\u52d5\u65b9\u5f0f\u3002\u95dc\u4fc2\u8868\u793a\u4e00\u500b\u5be6\u9ad4\u4e2d\u7684\u8a18\u9304\u8207\u53e6\u4e00\u500b\u5be6\u9ad4\u4e2d\u7684\u8a18\u9304\u76f8\u95dc\u806f\u3002<\/li>\n
- \u57fa\u6578\uff1a<\/strong>\u9019\u5b9a\u7fa9\u4e86\u5be6\u9ad4\u4e4b\u9593\u7684\u6578\u91cf\u95dc\u4fc2\u3002\u5e38\u898b\u7684\u57fa\u6578\u5305\u62ec\u4e00\u5c0d\u4e00\uff081:1\uff09\u3001\u4e00\u5c0d\u591a\uff081:N\uff09\u548c\u591a\u5c0d\u591a\uff08M:N\uff09\u3002\u7406\u89e3\u57fa\u6578\u5c0d\u65bc\u9632\u6b62\u8cc7\u6599\u91cd\u8907\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<\/ul>\n
\u898f\u7bc4\u5316\u8207\u8cc7\u6599\u5b8c\u6574\u6027<\/h3>\n
ERD \u901a\u5e38\u662f\u898f\u7bc4\u5316\u7684\u8d77\u9ede\u3002\u898f\u7bc4\u5316\u662f\u7d44\u7e54\u8cc7\u6599\u4ee5\u6e1b\u5c11\u91cd\u8907\u4e26\u63d0\u5347\u5b8c\u6574\u6027\u7684\u904e\u7a0b\u3002ERD \u53ef\u5e6b\u52a9\u5728\u5efa\u7acb\u5be6\u969b\u8cc7\u6599\u8868\u4e4b\u524d\uff0c\u8996\u89ba\u5316\u908f\u8f2f\u7d50\u69cb\u3002\u5b83\u78ba\u4fdd\uff1a<\/p>\n
- \n
- \u8cc7\u6599\u4e0d\u6703\u7121\u8b02\u5730\u91cd\u8907\u3002<\/li>\n
- \u53c3\u8003\u5b8c\u6574\u6027\u5f97\u4ee5\u7dad\u6301\uff08\u4f8b\u5982\uff0c\u8a02\u55ae\u7121\u6cd5\u5728\u6c92\u6709\u5ba2\u6236\u7684\u60c5\u6cc1\u4e0b\u5b58\u5728\uff09\u3002<\/li>\n
- \u5982\u552f\u4e00\u6027\u8207\u5fc5\u586b\u6b04\u4f4d\u7b49\u7d04\u675f\u689d\u4ef6\u6e05\u6670\u660e\u78ba\u3002<\/li>\n<\/ul>\n
\u4f55\u6642\u61c9\u7528 ERD<\/h3>\n
ERD \u5728\u8cc7\u6599\u5eab\u8a2d\u8a08\u968e\u6bb5\u81f3\u95dc\u91cd\u8981\u3002\u5b83\u5011\u5f4c\u88dc\u4e86\u696d\u52d9\u9700\u6c42\u8207\u6280\u8853\u5be6\u73fe\u4e4b\u9593\u7684\u5dee\u8ddd\u3002\u5b83\u5011\u6700\u9069\u5408\u5728\u4ee5\u4e0b\u60c5\u6cc1\u4f7f\u7528\uff1a<\/p>\n
- \n
- \u8a2d\u8a08\u95dc\u4fc2\u578b\u8cc7\u6599\u5eab\u7684\u7d50\u69cb\u3002<\/li>\n
- \u5b9a\u7fa9\u8cc7\u6599\u7d04\u675f\u8207\u9a57\u8b49\u898f\u5247\u3002<\/li>\n
- \u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u4e2d\u8cc7\u6599\u7684\u4e00\u81f4\u6027\u3002<\/li>\n
- \u898f\u5283\u8cc7\u6599\u6aa2\u7d22\u6548\u7387\u8207\u7d22\u5f15\u7b56\u7565\u3002<\/li>\n<\/ul>\n
\u95dc\u9375\u5dee\u7570\u4e00\u76ee\u4e86\u7136 \ud83c\udd9a<\/h2>\n
\u5c07\u9019\u5169\u500b\u6a21\u578b\u4e26\u5217\u6bd4\u8f03\uff0c\u80fd\u7a81\u986f\u5b83\u5011\u622a\u7136\u4e0d\u540c\u7684\u76ee\u7684\u3002\u5118\u7ba1\u5b83\u5011\u5728\u8996\u89ba\u8907\u96dc\u5ea6\u4e0a\u53ef\u80fd\u770b\u4f3c\u76f8\u4f3c\uff0c\u4f46\u5176\u8a2d\u8a08\u610f\u5716\u537b\u6709\u986f\u8457\u5dee\u7570\u3002<\/p>\n
\n\n
\n \n\u529f\u80fd<\/th>\n \u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09<\/th>\n \u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09<\/th>\n<\/tr>\n<\/thead>\n \n \u4e3b\u8981\u91cd\u9ede<\/strong><\/td>\n \u6d41\u7a0b\u8207\u8cc7\u6599\u6d41\u52d5<\/td>\n \u8cc7\u6599\u7d50\u69cb\u8207\u95dc\u4fc2<\/td>\n<\/tr>\n \n \u6642\u9593\u7dad\u5ea6<\/strong><\/td>\n \u52d5\u614b\uff08\u986f\u793a\u96a8\u6642\u9593\u6d41\u52d5\uff09<\/td>\n \u975c\u614b\uff08\u986f\u793a\u67d0\u4e00\u9ede\u7684\u7d50\u69cb\uff09<\/td>\n<\/tr>\n \n \u95dc\u9375\u554f\u984c<\/strong><\/td>\n \u8cc7\u6599\u5982\u4f55\u79fb\u52d5\uff1f<\/td>\n \u5132\u5b58\u4e86\u54ea\u4e9b\u8cc7\u6599\uff0c\u4ee5\u53ca\u5b83\u5011\u662f\u5982\u4f55\u9023\u7d50\u7684\uff1f<\/td>\n<\/tr>\n \n \u76ee\u6a19\u53d7\u773e<\/strong><\/td>\n \u696d\u52d9\u5206\u6790\u5e2b\u3001\u5229\u5bb3\u95dc\u4fc2\u4eba<\/td>\n \u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u3001\u5f8c\u7aef\u958b\u767c\u4eba\u54e1<\/td>\n<\/tr>\n \n \u751f\u547d\u9031\u671f\u968e\u6bb5<\/strong><\/td>\n \u9700\u6c42\u3001\u529f\u80fd\u8a2d\u8a08<\/td>\n \u8cc7\u6599\u5eab\u8a2d\u8a08\u3001\u5be6\u4f5c<\/td>\n<\/tr>\n \n \u908f\u8f2f vs. \u5132\u5b58<\/strong><\/td>\n \u8457\u91cd\u65bc\u908f\u8f2f<\/td>\n \u8457\u91cd\u65bc\u5132\u5b58<\/td>\n<\/tr>\n \n \u8907\u96dc\u5ea6<\/strong><\/td>\n \u7531\u65bc\u8a31\u591a\u6d41\u7a0b\uff0c\u53ef\u80fd\u8b8a\u5f97\u8907\u96dc<\/td>\n \u7531\u65bc\u95dc\u4fc2\uff0c\u53ef\u80fd\u8b8a\u5f97\u8907\u96dc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u4f55\u6642\u61c9\u512a\u5148\u8003\u616e\u8cc7\u6599\u6d41\u7a0b\u5efa\u6a21 \ud83d\udcc9<\/h2>\n
\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u5883\u4e0b\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u6703\u6210\u70ba\u7cfb\u7d71\u8a2d\u8a08\u7684\u4e3b\u8981\u5de5\u5177\u3002\u7576\u696d\u52d9\u908f\u8f2f\u662f\u7cfb\u7d71\u4e2d\u6700\u8907\u96dc\u7684\u90e8\u5206\u6642\uff0c\u512a\u5148\u9078\u64c7DFD\u901a\u5e38\u662f\u6b63\u78ba\u7684\u9014\u5f91\u3002<\/p>\n
- \n
- \u5de5\u4f5c\u6d41\u7a0b\u81ea\u52d5\u5316\uff1a<\/strong> \u5982\u679c\u7cfb\u7d71\u6d89\u53ca\u8907\u96dc\u7684\u6838\u51c6\u93c8\u3001\u72c0\u614b\u8b8a\u66f4\u6216\u591a\u91cd\u6b65\u9a5f\u7684\u4ea4\u6613\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u80fd\u660e\u78ba\u91d0\u6e05\u64cd\u4f5c\u9806\u5e8f\uff0c\u4e26\u5354\u52a9\u8b58\u5225\u6d41\u7a0b\u4e2d\u7684\u74f6\u9838\u3002<\/li>\n
- \u5916\u90e8\u6574\u5408\uff1a<\/strong> \u7576\u7cfb\u7d71\u8207\u8a31\u591a\u5916\u90e8API\u6216\u820a\u6709\u7cfb\u7d71\u4e92\u52d5\u6642\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u80fd\u5e6b\u52a9\u6a19\u793a\u8cc7\u6599\u7684\u9032\u5165\u8207\u96e2\u958b\u9ede\uff0c\u907f\u514d\u7cfb\u7d71\u9593\u4ea4\u63a5\u6642\u767c\u751f\u8cc7\u6599\u907a\u5931\u3002<\/li>\n
- \u5b89\u5168\u5be9\u8a08\uff1a<\/strong> \u5b89\u5168\u5718\u968a\u7d93\u5e38\u4f7f\u7528\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u8ffd\u8e64\u654f\u611f\u8cc7\u6599\u5728\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u6d41\u52d5\u8def\u5f91\uff0c\u4e26\u8b58\u5225\u9700\u8981\u52a0\u5bc6\u6216\u5f37\u5236\u57f7\u884c\u5b58\u53d6\u63a7\u5236\u7684\u7bc0\u9ede\u3002<\/li>\n
- \u696d\u52d9\u6d41\u7a0b\u518d\u9020\uff1a<\/strong> \u5728\u512a\u5316\u73fe\u6709\u5de5\u4f5c\u6d41\u7a0b\u6642\uff0c\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u53ef\u4f5c\u70ba\u57fa\u6e96\u3002\u60a8\u53ef\u5c07\u300c\u73fe\u72c0\u300d\u6d41\u7a0b\u8207\u300c\u672a\u4f86\u76ee\u6a19\u300d\u6d41\u7a0b\u9032\u884c\u6bd4\u8f03\uff0c\u4ee5\u8861\u91cf\u6539\u5584\u7a0b\u5ea6\u3002<\/li>\n<\/ul>\n
\u5728\u9019\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u904e\u65e9\u8457\u91cd\u65bc\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u53ef\u80fd\u6703\u63a9\u84cb\u7cfb\u7d71\u7684\u908f\u8f2f\u3002\u8cc7\u6599\u5eab\u5373\u4f7f\u8a2d\u8a08\u5f97\u5b8c\u7f8e\u7121\u7f3a\uff0c\u82e5\u6d41\u7a0b\u908f\u8f2f\u6709\u8aa4\uff0c\u61c9\u7528\u7a0b\u5f0f\u4ecd\u7121\u6cd5\u6eff\u8db3\u4f7f\u7528\u8005\u9700\u6c42\u3002<\/p>\n
\u4f55\u6642\u61c9\u512a\u5148\u8003\u616e\u8cc7\u6599\u7d50\u69cb\u5efa\u6a21 \ud83c\udfd7\ufe0f<\/h2>\n
\u76f8\u53cd\u5730\uff0c\u6709\u4e9b\u60c5\u5883\u4e0b\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u8207\u7d50\u69cb\u662f\u6210\u529f\u95dc\u9375\u3002\u7576\u8cc7\u6599\u91cf\u3001\u95dc\u4fc2\u8207\u7d04\u675f\u662f\u4e3b\u8981\u63a8\u52d5\u529b\u6642\uff0c\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u61c9\u512a\u5148\u8003\u91cf\u3002<\/p>\n
- \n
- \u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\uff1a<\/strong> \u5728\u5206\u6790\u5e73\u53f0\u6216\u8cc7\u6599\u5009\u5132\u7b49\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6599\u7684\u7d50\u69cb\u81f3\u95dc\u91cd\u8981\u3002ERD \u78ba\u4fdd\u8cc7\u6599\u7d50\u69cb\u80fd\u652f\u63f4\u8907\u96dc\u7684\u67e5\u8a62\u8207\u805a\u5408\u3002<\/li>\n
- \u820a\u7cfb\u7d71\u9077\u79fb\uff1a<\/strong> \u5728\u5c07\u8cc7\u6599\u5f9e\u820a\u7cfb\u7d71\u9077\u79fb\u5230\u65b0\u7cfb\u7d71\u6642\uff0c\u7406\u89e3\u73fe\u6709\u7684\u95dc\u4fc2\u81f3\u95dc\u91cd\u8981\u3002ERD \u6709\u52a9\u65bc\u5c07\u820a\u7684\u8cc7\u6599\u8868\u6620\u5c04\u5230\u65b0\u7684\u7d50\u69cb\uff0c\u78ba\u4fdd\u8cc7\u6599\u4e0d\u6703\u907a\u5931\u6216\u640d\u58de\u3002<\/li>\n
- \u5408\u898f\u8207\u6cbb\u7406\uff1a<\/strong> \u91d1\u878d\u8207\u91ab\u7642\u7b49\u7522\u696d\u9700\u8981\u56b4\u683c\u7684\u8cc7\u6599\u6cbb\u7406\u3002ERD \u8a18\u9304\u8cc7\u6599\u5b58\u653e\u7684\u4f4d\u7f6e\u3001\u64c1\u6709\u8005\u4ee5\u53ca\u8207\u5176\u4ed6\u8cc7\u6599\u9ede\u7684\u95dc\u806f\u65b9\u5f0f\uff0c\u6709\u52a9\u65bc\u5408\u898f\u5831\u544a\u3002<\/li>\n
- \u9ad8\u6548\u80fd\u9700\u6c42\uff1a<\/strong> \u82e5\u7cfb\u7d71\u9700\u8981\u5feb\u901f\u7684\u8b80\u5beb\u64cd\u4f5c\uff0cERD \u53ef\u5f15\u5c0e\u7d22\u5f15\u7b56\u7565\u8207\u8cc7\u6599\u5206\u5272\u3002\u7406\u89e3\u8cc7\u6599\u4e4b\u9593\u7684\u95dc\u4fc2\u6709\u52a9\u65bc\u9ad8\u6548\u8a2d\u8a08\u9023\u63a5\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n
\u5728\u9019\u4e9b\u60c5\u5883\u4e0b\u8df3\u904e ERD \u53ef\u80fd\u5c0e\u81f4\u51fa\u73fe\u300c\u7fa9\u5927\u5229\u9eb5\u5f0f\u8cc7\u6599\u5eab\u300d\uff0c\u5176\u4e2d\u8cc7\u6599\u8868\u91cd\u8907\u3001\u95dc\u4fc2\u6a21\u7cca\uff0c\u4e14\u6548\u80fd\u6703\u96a8\u6642\u9593\u9010\u6f38\u4e0b\u964d\u3002<\/p>\n
\u5169\u8005\u6574\u5408\u4ee5\u5efa\u7acb\u7a69\u5065\u7684\u67b6\u69cb \ud83e\udd1d<\/h2>\n
\u96d6\u7136\u5340\u5206 DFD \u8207 ERD \u6709\u5176\u7528\u8655\uff0c\u4f46\u6700\u6210\u529f\u7684\u7cfb\u7d71\u901a\u5e38\u6703\u540c\u6642\u4f7f\u7528\u5169\u8005\u3002\u5b83\u5011\u662f\u4e92\u88dc\u7684\uff0c\u800c\u975e\u4e92\u65a5\u7684\u3002\u7a69\u5065\u7684\u7cfb\u7d71\u8a2d\u8a08\u6d41\u7a0b\u901a\u5e38\u662f\u7531\u6d41\u7a0b\u8d70\u5411\u7d50\u69cb\u3002<\/p>\n
\u4f9d\u5e8f\u9032\u884c\u7684\u65b9\u6cd5<\/h3>\n
- \n
- \u4f7f\u7528 DFD \u5b9a\u7fa9\u7bc4\u570d\uff1a<\/strong> \u5f9e\u4e0a\u4e0b\u6587\u5716\u958b\u59cb\uff0c\u4ee5\u7406\u89e3\u7cfb\u7d71\u7684\u908a\u754c\u3002\u8b58\u5225\u6240\u6709\u8f38\u5165\u8207\u8f38\u51fa\u3002<\/li>\n
- \u5206\u89e3\u6d41\u7a0b\uff1a<\/strong> \u5c07\u6d41\u7a0b\u62c6\u89e3\uff0c\u4ee5\u7406\u89e3\u6240\u9700\u7684\u7279\u5b9a\u8cc7\u6599\u8f49\u63db\u3002<\/li>\n
- \u8b58\u5225\u8cc7\u6599\u5be6\u9ad4\uff1a<\/strong> \u5728\u5206\u6790\u8cc7\u6599\u6d41\u7a0b\u6642\uff0c\u8b58\u5225\u6b63\u5728\u79fb\u52d5\u7684\u6301\u4e45\u6027\u7269\u4ef6\u3002\u9019\u4e9b\u5c07\u6210\u70ba ERD \u7684\u5019\u9078\u5be6\u9ad4\u3002<\/li>\n
- \u8a2d\u8a08 ERD\uff1a<\/strong> \u5efa\u7acb\u5be6\u9ad4\u95dc\u4fc2\u5716\uff0c\u4ee5\u5b9a\u7fa9\u9019\u4e9b\u5be6\u9ad4\u5982\u4f55\u5132\u5b58\u8207\u9023\u7d50\u3002<\/li>\n
- \u9a57\u8b49\u6d41\u7a0b\uff1a<\/strong> \u5c07\u8cc7\u6599\u6d41\u7a0b\u5c0d\u61c9\u56de\u8cc7\u6599\u5eab\u8cc7\u6599\u8868\u3002\u78ba\u4fdd DFD \u4e2d\u7684\u6bcf\u500b\u6d41\u7a0b\u5728 ERD \u4e2d\u90fd\u6709\u5c0d\u61c9\u7684\u5132\u5b58\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n
\u8cc7\u6599\u5132\u5b58\u7684\u5c0d\u61c9<\/h3>\n
\u5728 DFD \u4e2d\uff0c\u8cc7\u6599\u5132\u5b58\u662f\u4e00\u500b\u901a\u7528\u7684\u4f54\u4f4d\u7b26\u3002\u5728 ERD \u4e2d\uff0c\u540c\u4e00\u500b\u8cc7\u6599\u5132\u5b58\u6703\u8f49\u63db\u70ba\u8a73\u7d30\u7684\u8cc7\u6599\u8868\u5b9a\u7fa9\u3002\u5c0d\u61c9\u904e\u7a0b\u5305\u62ec\uff1a<\/p>\n
- \n
- \u5c07 DFD \u7684\u8cc7\u6599\u5132\u5b58\u8f49\u63db\u70ba ERD \u7684\u5be6\u9ad4\u3002<\/li>\n
- \u78ba\u4fdd DFD \u6d41\u7a0b\u4e2d\u7684\u6240\u6709\u5c6c\u6027\u90fd\u5728 ERD \u5c6c\u6027\u4e2d\u6709\u6240\u5c0d\u61c9\u3002<\/li>\n
- \u6aa2\u67e5 ERD \u4e2d\u7684\u57fa\u6578\u662f\u5426\u652f\u63f4 DFD \u6d41\u7a0b\u4e2d\u7684\u591a\u91cd\u6027\u3002<\/li>\n<\/ul>\n
\u4f8b\u5982\uff0c\u82e5 DFD \u663e\u793a\u300c\u5ba2\u6236\u300d\u767c\u9001\u591a\u7b46\u300c\u8a02\u55ae\u300d\uff0cERD \u5fc5\u9808\u53cd\u6620\u5ba2\u6236\u8207\u8a02\u55ae\u5be6\u9ad4\u4e4b\u9593\u7684\u300c\u4e00\u5c0d\u591a\u300d\u95dc\u4fc2\u3002\u82e5 DFD \u6697\u793a\u8907\u96dc\u7684\u591a\u5c0d\u591a\u95dc\u4fc2\uff08\u4f8b\u5982\u300c\u5b78\u751f\u300d\u8207\u300c\u8ab2\u7a0b\u300d\uff09\uff0cERD \u5fc5\u9808\u5f15\u5165\u95dc\u806f\u5be6\u9ad4\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\u3002<\/p>\n
\u5e38\u898b\u9677\u9631\u9700\u907f\u514d \u26a0\ufe0f<\/h2>\n
\u6df7\u7528\u6216\u8aa4\u7528\u9019\u4e9b\u6a21\u578b\u53ef\u80fd\u5c0e\u81f4\u56b4\u91cd\u7684\u6280\u8853\u8ca0\u50b5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9700\u7559\u610f\u7684\u5e38\u898b\u932f\u8aa4\u3002<\/p>\n
1. \u6df7\u6dc6\u908f\u8f2f\u8207\u5132\u5b58<\/h3>\n
\u4e0d\u8981\u5728ERD\u4e2d\u5305\u542b\u8655\u7406\u908f\u8f2f\u3002ERD\u61c9\u5b9a\u7fa9\u7d50\u69cb\uff0c\u800c\u975e\u884c\u70ba\u3002\u5982\u679c\u4f60\u767c\u73fe\u81ea\u5df1\u5728ERD\u4e2d\u7e6a\u88fd\u4ee3\u8868\u300c\u8655\u7406\u300d\u7684\u7bad\u982d\uff0c\u4f60\u5f88\u53ef\u80fd\u662f\u5728\u63cf\u8ff0DFD\u3002<\/p>\n
2. DFD\u904e\u5ea6\u5efa\u6a21<\/h3>\n
DFD\u4e0d\u61c9\u662f\u7a0b\u5f0f\u78bc\u7684\u6d41\u7a0b\u5716\u3002\u5b83\u4e0d\u61c9\u8a73\u7d30\u63cf\u8ff0\u6bcf\u4e00\u689d\u689d\u4ef6\u5206\u652f\u6216\u932f\u8aa4\u8655\u7406\u6d41\u7a0b\u3002\u61c9\u5c07DFD\u4fdd\u6301\u5728\u908f\u8f2f\u5c64\u7d1a\u3002\u5982\u679c\u4f60\u8a73\u7d30\u5217\u51fa\u6bcf\u4e00\u689d\u300cif-else\u300d\u8a9e\u53e5\uff0c\u5716\u8868\u5c07\u8b8a\u5f97\u96e3\u4ee5\u95b1\u8b80\uff0c\u4e26\u55aa\u5931\u5176\u9ad8\u968e\u6982\u89c0\u50f9\u503c\u3002<\/p>\n
3. \u5ffd\u7565ERD\u4e2d\u7684\u57fa\u6578<\/h3>\n
\u5728\u672a\u5b9a\u7fa9\u57fa\u6578\u7684\u60c5\u6cc1\u4e0b\u65bc\u5be6\u9ad4\u4e4b\u9593\u7e6a\u88fd\u7dda\u689d\u662f\u4e00\u7a2e\u5e38\u898b\u932f\u8aa4\u3002\u55ae\u7d14\u7684\u7dda\u689d\u7121\u6cd5\u8aaa\u660e\u4e00\u4f4d\u5ba2\u6236\u53ef\u4ee5\u6709\u96f6\u7b46\u8a02\u55ae\u6216\u4e00\u767e\u842c\u7b46\u8a02\u55ae\u3002\u52d9\u5fc5\u660e\u78ba\u6a19\u793a1:1\u30011:N\u6216M:N\uff0c\u4ee5\u907f\u514d\u6b67\u7fa9\u3002<\/p>\n
4. \u5ffd\u7565\u8cc7\u6599\u5c6c\u6027<\/h3>\n
\u7576\u8cc7\u6599\u5c6c\u6027\u6a21\u7cca\u6642\uff0c\u5169\u7a2e\u5716\u8868\u90fd\u6703\u53d7\u640d\u3002\u5728DFD\u4e2d\uff0c\u8cc7\u6599\u6d41\u61c9\u4f7f\u7528\u63cf\u8ff0\u6027\u540d\u7a31\uff08\u4f8b\u5982\u300c\u5df2\u9a57\u8b49\u7684\u4ed8\u6b3e\u8cc7\u8a0a\u300d\u800c\u975e\u300c\u8cc7\u6599\u300d\uff09\u3002\u5728ERD\u4e2d\uff0c\u5c6c\u6027\u61c9\u76e1\u53ef\u80fd\u5b9a\u7fa9\u8cc7\u6599\u985e\u578b\u8207\u7d04\u675f\u689d\u4ef6\u3002<\/p>\n
5. \u5275\u5efa\u5b64\u5152\u6d41\u7a0b<\/h3>\n
\u5728DFD\u4e2d\uff0c\u6d41\u7a0b\u7121\u6cd5\u5728\u6c92\u6709\u8cc7\u6599\u6d41\u5165\u6216\u6d41\u51fa\u7684\u60c5\u6cc1\u4e0b\u5b58\u5728\u3002\u78ba\u4fdd\u6bcf\u500b\u6d41\u7a0b\u6846\u81f3\u5c11\u6709\u4e00\u500b\u6d41\u5165\u548c\u4e00\u500b\u6d41\u51fa\u7684\u8cc7\u6599\u6d41\u3002\u5b64\u5152\u6d41\u7a0b\u8868\u793a\u5b58\u5728\u7121\u6548\u908f\u8f2f\u6216\u907a\u6f0f\u7684\u8cc7\u6599\u9700\u6c42\u3002<\/p>\n
\u6587\u6a94\u7de8\u5beb\u7684\u6700\u4f73\u5be6\u52d9 \ud83d\udcdd<\/h2>\n
\u70ba\u7dad\u6301\u6e05\u6670\u5ea6\u8207\u5be6\u7528\u6027\uff0c\u8acb\u9075\u5faa\u9019\u4e9b\u6587\u6a94\u6a19\u6e96\u3002<\/p>\n
- \n
- \u547d\u540d\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u5169\u500b\u5716\u8868\u4e2d\u4f7f\u7528\u76f8\u540c\u7684\u8853\u8a9e\u3002\u5982\u679cDFD\u7a31\u5176\u70ba\u300c\u5ba2\u6236\u300d\uff0cERD\u4e5f\u61c9\u7a31\u70ba\u300c\u5ba2\u6236\u300d\uff0c\u800c\u975e\u300c\u4f7f\u7528\u8005\u300d\u3002\u4e00\u81f4\u6027\u53ef\u964d\u4f4e\u5718\u968a\u7684\u8a8d\u77e5\u8ca0\u8377\u3002<\/li>\n
- \u7248\u672c\u63a7\u5236\uff1a<\/strong>\u5c07\u5716\u8868\u8996\u70ba\u7a0b\u5f0f\u78bc\u3002\u7dad\u8b77\u7248\u672c\u6b77\u53f2\u3002\u96a8\u8457\u7cfb\u7d71\u6f14\u9032\uff0c\u5716\u8868\u5fc5\u9808\u66f4\u65b0\u4ee5\u53cd\u6620\u7576\u524d\u72c0\u614b\u3002<\/li>\n
- \u4e0a\u4e0b\u6587\u8a3b\u89e3\uff1a<\/strong>\u70ba\u8907\u96dc\u5340\u57df\u6dfb\u52a0\u8a3b\u89e3\u3002\u5982\u679c\u95dc\u4fc2\u975e\u6a19\u6e96\uff0c\u8acb\u8aaa\u660e\u539f\u56e0\u3002\u5982\u679c\u8cc7\u6599\u6d41\u4ee3\u8868\u80cc\u666f\u4f5c\u696d\uff0c\u8acb\u8a3b\u660e\u5176\u70ba\u975e\u540c\u6b65\u3002<\/li>\n
- \u5be9\u67e5\u5faa\u74b0\uff1a<\/strong>\u8207\u696d\u52d9\u5229\u76ca\u76f8\u95dc\u8005\uff08\u91dd\u5c0dDFD\uff09\u53ca\u6280\u8853\u8ca0\u8cac\u4eba\uff08\u91dd\u5c0dERD\uff09\u9032\u884c\u6b63\u5f0f\u5be9\u67e5\u3002\u696d\u52d9\u5206\u6790\u5e2b\u53ef\u80fd\u767c\u73feDFD\u4e2d\u7684\u908f\u8f2f\u932f\u8aa4\uff0c\u800c\u958b\u767c\u8005\u53ef\u80fd\u5ffd\u7565\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/li>\n<\/ul>\n
\u6a21\u578b\u9078\u64c7\u7684\u6700\u7d42\u601d\u8003 \ud83e\udde0<\/h2>\n
\u5728\u8cc7\u6599\u6d41\u7a0b\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\u4e4b\u9593\u9032\u884c\u9078\u64c7\uff0c\u4e26\u975e\u8981\u5728\u4e8c\u8005\u4e4b\u9593\u505a\u53d6\u6368\uff0c\u800c\u662f\u8981\u70ba\u8a2d\u8a08\u751f\u547d\u9031\u671f\u7684\u7279\u5b9a\u968e\u6bb5\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u3002DFD\u63ed\u793a\u8cc7\u6599\u7684\u6d41\u5411\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6309\u9810\u671f\u904b\u4f5c\u3002ERD\u5247\u7a69\u56fa\u8cc7\u6599\uff0c\u78ba\u4fdd\u5176\u53ef\u9760\u4e14\u9ad8\u6548\u5730\u5132\u5b58\u3002<\/p>\n
\u900f\u904e\u638c\u63e1\u9019\u5169\u7a2e\u6a21\u578b\u7684\u7368\u7279\u7528\u9014\uff0c\u67b6\u69cb\u5e2b\u80fd\u5920\u5efa\u7acb\u908f\u8f2f\u56b4\u8b39\u4e14\u7d50\u69cb\u7a69\u56fa\u7684\u7cfb\u7d71\u3002\u76ee\u6a19\u4e26\u975e\u7522\u51fa\u5b8c\u7f8e\u7684\u5716\u8868\uff0c\u800c\u662f\u5efa\u7acb\u5c0d\u7cfb\u7d71\u7684\u6e05\u6670\u7406\u89e3\u3002\u7576\u5718\u968a\u80fd\u900f\u904eDFD\u770b\u5230\u6d41\u7a0b\uff0c\u900f\u904eERD\u770b\u5230\u8cc7\u6599\u6642\uff0c\u6210\u529f\u5c08\u6848\u7684\u57fa\u790e\u4fbf\u5df2\u5960\u5b9a\u3002<\/p>\n
\u8acb\u8a18\u4f4f\uff0c\u9019\u4e9b\u6a21\u578b\u662f\u6e9d\u901a\u5de5\u5177\u3002\u5b83\u5011\u7684\u50f9\u503c\u5728\u65bc\u70ba\u5718\u968a\u6210\u54e1\u5275\u9020\u5171\u8b58\u3002\u7121\u8ad6\u4f60\u662f\u5728\u7e6a\u88fd\u8907\u96dc\u4ea4\u6613\u6d41\u7a0b\uff0c\u9084\u662f\u5b9a\u7fa9\u4f7f\u7528\u8005\u6a94\u6848\uff0c\u90fd\u61c9\u805a\u7126\u65bc\u6e05\u6670\u6027\u3001\u6e96\u78ba\u6027\u4ee5\u53ca\u8207\u696d\u52d9\u76ee\u6a19\u7684\u4e00\u81f4\u6027\u3002\u900f\u904e\u6d41\u7a0b\u8207\u7d50\u69cb\u7684\u6070\u7576\u7d50\u5408\uff0c\u7cfb\u7d71\u8a2d\u8a08\u4fbf\u6210\u70ba\u4e00\u9580\u6709\u7d00\u5f8b\u7684\u85dd\u8853\uff0c\u800c\u975e\u6191\u7a7a\u731c\u6e2c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8a2d\u8a08\u4e00\u500b\u8907\u96dc\u7684\u8edf\u9ad4\u7cfb\u7d71\u9700\u8981\u660e\u78ba\u7684\u8cc7\u6599\u6d41\u52d5\u8207\u5132\u5b58\u4f4d\u7f6e\u5730\u5716\u3002\u82e5\u7121\u7d50\u69cb\u5316\u7684\u65b9\u6cd5\uff0c\u7cfb\u7d71\u67b6\u69cb\u53ef\u80fd\u8b8a\u5f97\u8106\u5f31\u3001\u96e3\u4ee5\u7dad\u8b77\uff0c\u4e14\u5bb9\u6613\u7522\u751f\u908f\u8f2f\u932f\u8aa4\u3002\u7cfb\u7d71\u5de5\u7a0b\u4e2d\u6700\u57fa\u790e\u7684\u5169\u7a2e\u5efa\u6a21\u6280\u8853\u5206\u5225\u662f\u8cc7\u6599\u6d41\u7a0b\u5716\uff08DFD\uff09\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u3002\u96d6\u7136\u5169\u8005\u90fd\u5177\u6709\u53ef\u8996\u5316\u7684\u95dc\u9375\u529f\u80fd\uff0c\u4f46\u5404\u81ea\u95dc\u6ce8\u7cfb\u7d71\u4e2d\u6839\u672c\u4e0d\u540c\u7684\u9762\u5411\u3002 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