{"id":5779,"date":"2024-04-15T17:31:33","date_gmt":"2024-04-15T09:31:33","guid":{"rendered":"http:\/\/zyg.luchers.cn\/?p=5779"},"modified":"2024-04-15T17:31:33","modified_gmt":"2024-04-15T09:31:33","slug":"%e7%ac%ac%e5%85%ad%e7%ab%a0%e3%80%81%e5%85%b3%e7%b3%bb%e6%95%b0%e6%8d%ae%e7%90%86%e8%ae%ba","status":"publish","type":"post","link":"http:\/\/zyg.luchers.cn\/index.php\/2024\/04\/15\/%e7%ac%ac%e5%85%ad%e7%ab%a0%e3%80%81%e5%85%b3%e7%b3%bb%e6%95%b0%e6%8d%ae%e7%90%86%e8%ae%ba\/","title":{"rendered":"\u7b2c\u516d\u7ae0\u3001\u5173\u7cfb\u6570\u636e\u7406\u8bba"},"content":{"rendered":"

\u7b2c\u516d\u7ae0\u3001\u5173\u7cfb\u6570\u636e\u7406\u8bba<\/h1>\n

6.1\u3001\u95ee\u9898\u7684\u63d0\u51fa<\/h2>\n

1\u3001\u5173\u7cfb\u6a21\u5f0f\u7684\u8868\u793a<\/h4>\n

1\u3001\u662f\u7531\u4e94\u90e8\u5206\u7ec4\u6210\uff0c\u662f\u4e00\u4e2a\u4e94\u5143\u7ec4R(U,D,DOM,F)<\/p>\n

2\u3001R\u662f\u7b26\u53f7\u5316\u7684\u5143\u7ec4\u8bed\u4e49<\/p>\n

3\u3001U\u4e3a\u4e00\u7ec4\u5c5e\u6027<\/p>\n

4\u3001D\u4e3a\u5c5e\u6027\u7ec4U\u4e2d\u7684\u5c5e\u6027\u6240\u6765\u81ea\u7684\u57df<\/p>\n

5\u3001DOM\u4e3a\u5c5e\u6027<\/p>\n

6\u3001F\u4e3a\u5c5e\u6027\u7ec4U\u4e0a\u7684\u4e00\u7ec4\u6570\u636e\u4f9d\u8d56<\/strong><\/p>\n

2\u3001\u8bf4\u660e<\/h5>\n

1\u3001\u7531\u4e8eD\u3001DOM\u4e0e\u8bbe\u8ba1\u6a21\u5f0f\u5173\u7cfb\u4e0d\u5927\uff0c\u672c\u7ae0\u8282\u628a\u5173\u7cfb\u6a21\u578b\u770b\u4f5c\u4e00\u4e2a\u4e09\u5143\u7ec4R<U,F><\/p>\n

2\u3001\u5f53U\u4e0a\u7684\u4e00\u4e2a\u5173\u7cfb\uff08\u8868\u683c\uff09r\u6ee1\u8db3F\u65f6\uff0cr\u662f\u5173\u7cfb\u6a21\u5f0fR<U,f>\u7684\u4e00\u4e2a\u5173\u7cfb<\/p>\n

3\u3001\u4f5c\u4e3a\u4e8c\u7ef4\u8868\uff0c\u5173\u7cfb\u8981\u7b26\u5408\u4e00\u4e2a\u6700\u57fa\u672c\u7684\u6761\u4ef6\uff1a\u6bcf\u4e2a\u5206\u91cf\u5fc5\u987b\u662f\u4e0d\u53ef\u5206\u5f00\u7684\u6570\u636e\u9879\uff08\u5c31\u76f8\u5f53\u4e8eexcel\u8868\u4e0d\u80fd\u5408\u5e76\u5355\u5143\u683c\u3001\u62c6\u5206\u5355\u5143\u683c\uff09\uff0c\u6ee1\u8db3\u8be5\u5173\u7cfb\u6a21\u5f0f\u5c31\u5c5e\u4e8e\u7b2c\u4e00\u8303\u5f0f\uff081NF\uff09<\/strong><\/p>\n

2\u3001\u6570\u636e\u4f9d\u8d56<\/h4>\n
1\u3001\u5185\u5bb9<\/h5>\n

1\u662f\u4e00\u4e2a\u5173\u7cfb\u5185\u90e8\u5c5e\u6027\u4e0e\u5c5e\u6027\u4e4b\u95f4\u7684\u4e00\u79cd\u7ea6\u675f\u5173\u7cfb\uff0c\u662f\u901a\u8fc7\u5c5e\u6027\u95f4\u503c\u7684\u76f8\u7b49\u4e0e\u5426\u4f53\u73b0\u51fa\u6765\u7684\u6570\u636e\u95f4\u76f8\u4e92\u8054\u7cfb<\/p>\n

2\u3001\u4e3b\u8981\u7c7b\u578b<\/h5>\n

1\u3001\u51fd\u6570\u4f9d\u8d56\uff1aFD\uff08\u4f8b\u5982y=f(x))\uff09<\/p>\n

2\u3001\u591a\u503c\u4f9d\u8d56\uff1aMVD<\/p>\n

3\u3001\u51fd\u6570\u4f9d\u8d56\u7684\u4f53\u73b0<\/h4>\n

1\u3001\u4f8b\u5b501<\/p>\n

\"image-20230908115822674\"<\/div><\/p>\n

4\u3001\u6570\u636e\u4f9d\u8d56\u5b58\u5728\u7684\u95ee\u9898<\/h4>\n

1\u3001\u6570\u636e\u5197\u4f59<\/h5>\n

1\u3001\u6d6a\u8d39\u5927\u91cf\u5b58\u50a8\u7a7a\u95f4\uff0c\u6bcf\u4e2a\u7cfb\u4e3b\u4efb\u53cd\u590d\u51fa\u73b0<\/p>\n

2\u3001\u66f4\u65b0\u5f02\u5e38<\/h5>\n

1\u3001\u6570\u636e\u5197\u4f59\uff0c\u66f4\u65b0\u6570\u636e\u65f6\uff0c\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u4ee3\u4ef7\u5927\uff0c\u4fee\u6539\u4e86\u5176\u4e2d\u4e00\u4e2a\u6709\u5173\u7684\u6570\u636e\u53bb\uff0c\u5c31\u5fc5\u987b\u66f4\u6539\u4e0e\u5b66\u751f\u6709\u5173\u7684\u90a3\u4e2a\u6240\u6709\u5143\u7ec4\uff0c\u5426\u5219\u4e0d\u4e00\u81f4\u4f1a\u5f02\u5e38\u3002<\/p>\n

3\u3001\u63d2\u5165\u5f02\u5e38<\/h5>\n

1\u3001\u5982\u679c\u4e00\u5217\u521a\u6210\u7acb\uff0c\u6ca1\u6709\u4e0e\u4e4b\u4f9d\u8d56\u7684\u6570\u636e\u4f5c\u4e3a\u4f9d\u8d56\uff0c\u5c31\u4f1a\u51fa\u73b0\u5f02\u5e38<\/p>\n

4\u3001\u5220\u9664\u5f02\u5e38<\/h5>\n

1\u3001\u5982\u679c\u8981\u5220\u9664\u4e00\u4e2a\u7cfb\u7684\u6240\u6709\u5b66\u751f\uff0c\u5b66\u751f\u548c\u7cfb\u662f\u7531\u5173\u8054\u4e3b\u7801\u7684\uff0c\u7cfb\u548c\u7cfb\u4e3b\u4efb\u4e5f\u8981\u5220\u9664\uff0c\u4e0d\u7136\u5220\u9664\u4e0d\u4e86<\/p>\n

5\u3001\u8bf4\u660e<\/h5>\n

1\u3001Student\u5173\u7cfb\u6a21\u5f0f\uff0c\u4e0d\u662f\u4e00\u4e2a\u597d\u7684\u6a21\u5f0f\u3002\u597d\u7684\u6a21\u5f0f\u4e0d\u4f1a\u53d1\u751f\u4ee5\u4e0a\u4f9d\u8d56\u7684\u95ee\u9898<\/p>\n

2\u3001\u5b58\u5728\u4ee5\u4e0a\u95ee\u9898\uff0c\u5c31\u662f\u56e0\u4e3a\u5b58\u5728\u6a21\u5f0f\u4e2d\u7684\u67d0\u4e9b\u6570\u636e\u4f9d\u8d56\u5f15\u8d77\u7684<\/p>\n

3\u3001\u89e3\u51b3\u65b9\u6cd5\u662f\u7528\u89c4\u8303\u5316\u6539\u9020\u5173\u7cfb\u6a21\u5f0f\u6765\u89e3\u51b3\uff0c\u5176\u4e2d\u4e0d\u9002\u5408\u7684\u6570\u636e\u4f9d\u8d56<\/p>\n

5\u3001\u51fd\u6570\u4f9d\u8d56\u7684\u89e3\u51b3\u65b9\u6cd5<\/h4>\n

1\u3001\u628a\u5355\u4e00\u7684\u6a21\u5f0f\u5206\u6210\u4e09\u4e2a\u5173\u7cfb\u6a21\u5f0f<\/p>\n

2\u3001\u5173\u7cfb\u5982\u4e0b<\/p>\n

\"image-20230912212656457\"<\/div><\/p>\n

3\u3001\u8fd9\u4e09\u4e2a\u6a21\u5f0f\u90fd\u4e0d\u4f1a\u53d1\u751f\u63d2\u5165\u5f02\u5e38\uff0c\u5220\u9664\u5f02\u5e38\u7684\u95ee\u9898\uff0c\u6570\u636e\u5197\u4f59\u4e5f\u53ef\u4ee5\u5f97\u5230\u63a7\u5236<\/p>\n

4\u3001\u5c31\u662f\u4eceE-R\u56fe\u5f00\u59cb\uff0c\u5c31\u4e0d\u80fd\u628a\u6240\u6709\u6570\u636e\u5168\u90e8\u5f04\u6210\u4e00\u4e2a\u8868\u3002\u50cf\u7528\u6237\u8868\u4e2d\u7684\u6570\u636e\u548c\u4ea7\u54c1\u8868\u4e2d\u7684\u6570\u636e\uff0c\u5c31\u4e0d\u8981\u5168\u90e8\u653e\u5728\u4e00\u4e2a\u8868\u3002\u53cd\u6b63\u4f1a\u51fa\u73b0\u4ee5\u4e0a\u95ee\u9898<\/p>\n

6.2\u3001\u89c4\u8303\u5316<\/h2>\n

6.2.1\u3001\u51fd\u6570\u4f9d\u8d56<\/h3>\n

1\u3001\u5b9a\u4e49<\/h4>\n

1\u3001\u5b9a\u4e49\u4e00<\/h5>\n

1\u3001\u8bbeR(U\uff09\u662f\u5c5e\u6027\u96c6U\u4e0a\u7684\u5173\u7cfb\u6a21\u5f0f\uff0cX\u3001Y\u662fU\u7684\u5b50\u96c6\u3002\u5bf9\u4e8eR(U)\u7684\u4efb\u610f\u4e00\u4e2a\u53ef\u80fd\u7684\u5173\u7cfbr\uff0cr\u4e2d\u4e0d\u53ef\u80fd\u5b58\u5728\u4e24\u4e2a\u5143\u7ec4\u4ee5\u4e0a\u7684\u5c5e\u6027\u503c\u76f8\u5bf9\uff0c\u800c\u5728Y\u4e0a\u7684\u5c5e\u6027\u503c\u4e0d\u7b49\u3002\u79f0\u4e3a\u201cX\u51fd\u6570\u786e\u5b9aY"\u3001\u6216\u8005\u201dY\u51fd\u6570\u4f9d\u8d56\u4e8eX"\u3002\u8bb0\u4f5cX->Y\uff08\u5c31\u662f\u76f8\u5f53\u4e8e\u4e24\u884c\u4e2d\u7684\uff0c\u4e00\u4e2a\u552f\u4e00id\u53ea\u80fd\u5bf9\u5e94\u4e00\u4e2a\u540d\u5b57\uff0c\u4e0d\u80fd\u51fa\u73b0\u4e24\u4e2a\u540d\u5b57\uff0c\u8fd9\u4e2a\u5c31\u662f\u4f9d\u8d56\uff09<\/p>\n

2\u3001\u6709\u4e3b\u7801\u6216\u5173\u952e\u5b57\u5173\u7cfb\uff1a\u80af\u5b9a\u6709\u51fd\u6570\u4f9d\u8d56<\/p>\n

2\u3001\u5b9a\u4e49\u4e8c<\/h5>\n

3\u3001\u5728R(U)\u4e2d\uff0c\u5982\u679cX->Y\uff0c\u5e76\u4e14X\u4e2d\u7684\u4efb\u4f55\u4e00\u4e2a\u771f\u5b50\u96c6\u90fd\u63a8\u4e0d\u51faY\uff08\u5fc5\u987b\u8981\u5168\u90e8X\u7684\u771f\u5b50\u96c6\u624d\u80fd\u63a8\u51faY\uff09\uff0c\u5219\u79f0\u4e3aY\u5bf9X\u5b8c\u5168\u4f9d\u8d56\u5173\u7cfb\uff0c<\/strong><\/p>\n

\u8bb0\u4f5c:

\"image-20230912215117930\"<\/div><\/p>\n

\u2460\u3001\u5982\u679cX->Y\uff0c\u4f46Y\u4e0d\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56\u4e8eX\uff08\u5c31\u662f\u53ea\u8981X\u4e2d\u6709\u4e00\u4e2a\u6216\u51e0\u4e2a\u548cY\u6709\u4f9d\u8d56\uff0c\u5c31\u4e0d\u662f\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56\uff09\uff0c\u5219\u79f0\u4e3aY\u5bf9X\u7684\u90e8\u5206\u51fd\u6570\u4f9d\u8d56<\/p>\n

\u8bb0\u4f5c\uff1a

\"image-20230912220016413\"<\/div><\/p>\n
3\u3001\u5b9a\u4e49\u4e09<\/h5>\n

\"image-20230912221041227\"<\/div><\/p>\n

1\u3001\u5c31\u662f\u8bf4X\u80fd\u63a8\u51faY\uff0cY\u4e0d\u80fd\u63a8\u51faX<\/strong>\uff0c\u4f46\u662fY\u53ef\u4ee5\u63a8\u51faZ\u3002\u6240\u4ee5Z\u5bf9X\u4f20\u9012\u51fd\u6570\u4f9d\u8d56<\/p>\n

2\u3001\u5982\u679cX\u80fd\u63a8\u51faY\uff0cY\u4e5f\u80fd\u63a8\u51faX\uff0c\u90a3\u4e48Z\u76f4\u63a5\u4f9d\u8d56\u4e8eX\uff0c\u5c31\u4e0d\u662f\u4f20\u9012\u51fd\u6570\u4e86<\/p>\n

3\u3001\u4f8b\u5b50<\/p>\n

\"image-20230912221359522\"<\/div><\/p>\n

2\u3001\u4e00\u4e9b\u672f\u8bed\u548c\u8bb0\u53f7<\/h4>\n

1\u3001X->Y\uff0c\u4f46\u662fY\u4e0d\u5305\u542bX\uff0c\u53eb\u505a\uff1a\u975e\u5e73\u51e1\u7684\u51fd\u6570\u4f9d\u8d56<\/strong>\uff08\u4f8b\u5982\uff1a\u5e94\u8be5\u5173\u7cfbR\uff08id\uff0csex)\uff0c\u5173\u7cfbT\u4e2d(grade)\uff0cid->grade\uff0c\u5c31\u662f\u975e\u5e73\u51e1\u7684\u51fd\u6570\u4f9d\u8d56\uff09<\/p>\n

2\u3001X->Y\uff0c\u4f46\u662fY\u5305\u542bX\uff0c\u53eb\u505a\uff1a\u5e73\u51e1\u7684\u51fd\u6570\u4f9d\u8d56<\/strong>\uff08\u4f8b\u5982\uff1a\u5e94\u8be5\u5173\u7cfbR\uff08id\uff0csex\uff0cgrade)\uff0cid->grade\uff0c\u5c31\u662f\u5e73\u51e1\u7684\u51fd\u6570\u4f9d\u8d56\uff09<\/p>\n

3\u3001\u5bf9\u4e8e\u4efb\u610f\u6a21\u5f0f\uff0c\u5e73\u51e1\u51fd\u6570\u4f9d\u8d56\u90fd\u662f\u5fc5\u7136\u6210\u7acb\u7684\u3002\uff08\u672c\u7ae0\u6ca1\u6709\u6761\u4ef6\uff0c\u9ed8\u8ba4\u5c31\u662f\u975e\u5e73\u51e1\u51fd\u6570\u4f9d\u8d56\uff09<\/p>\n

4\u3001\u82e5X->Y\uff0c\u5219X\u79f0\u4e3a\u8fd9\u4e2a\u51fd\u6570\u4f9d\u8d56\u7684\u51b3\u5b9a\u5c5e\u6027\u7ec4\uff0c\u4e5f\u79f0\u4e3a\u51b3\u5b9a\u56e0\u7d20<\/strong><\/p>\n

5\u3001\u5982\u679cX->Y\u3001\u5e76\u4e14Y->X\uff0c\u5219\u79f0\u4e3aX<->Y\uff08\u4f8b\u5982X\u548cY\u76f8\u4e92\u90fd\u80fd\u63a8\u51fa\u6765\uff09<\/p>\n

6\u3001\u82e5Y\u4e0d\u51fd\u6570\u4f9d\u8d56\u4e8eX\uff0c\u5219\u8bb0\u4e3aX-\u226fY(X\u63a8\u4e0d\u51faY\uff0cY\u4e0d\u662fX\u7684\u4f9d\u8d56)<\/p>\n

6.2.2\u3001\u7801<\/h3>\n

1\u3001\u5b9a\u4e49\u56db<\/h4>\n

1\u3001\u8bbeK\u4e3aR<U,F>\u4e2d\u7684\u5c5e\u6027\uff0c\u6216\u5c5e\u6027\u7ec4\u5408\uff08\u4e00\u5217\u6216\u591a\u5217\uff09\u3002\u5982\u679cU\u662fK\u7684\u5b8c\u5168\u4f9d\u8d56\uff0c\u5219\u79f0R\u662f\u4e00\u4e2a\u5019\u9009\u7801\u3002<\/p>\n

2\u3001\u53ea\u8981\u4e00\u4e2a\u5173\u7cfb\u4e2d\uff0c\u4e00\u4e2a\u5c5e\u6027\u80fd\u552f\u4e00\u786e\u5b9a\u4e00\u4e2a\u503c\u6216\u4e00\u884c\uff0c\u5c31\u90fd\u53eb\u5019\u9009\u7801<\/p>\n

3\u3001\u8d85\u7801\uff1aU\u90e8\u5206\u51fd\u6570\u4f9d\u8d56K\uff0c\u90a3K\u5c31\u662f\u8d85\u7801\uff08\u4e3b\u7801\u5c5e\u6027\u518d\u52a0\u4e0a\u5176\u4ed6\u5c5e\u6027\uff09<\/p>\n

4\u3001\u5019\u9009\u7801\u662f\u6700\u5c0f\u7684\u8d85\u7801\uff0c\u5c31\u662fK\u7684\u4efb\u610f\u4e00\u4e2a\u771f\u5b50\u96c6\u90fd\u4e0d\u662f\u5019\u9009\u7801<\/p>\n

5\u3001\u5982\u679c\u5173\u7cfbR\u4e2d\u6709\u591a\u4e2a\u5019\u9009\u7801\uff0c\u5176\u4e2d\u4e00\u4e2a\u6765\u4f5c\u4e3a\u4e3b\u7801<\/strong><\/p>\n

2\u3001\u4e3b\u5c5e\u6027\u4e0e\u975e\u4e3b\u5c5e\u6027<\/h4>\n
1\u3001\u4e3b\u5c5e\u6027<\/h5>\n

1\u3001\u5305\u542b\u5728\u4efb\u4f55\u4e00\u4e2a\u5019\u9009\u7801\u4e2d\u7684\u5c5e\u6027<\/p>\n

2\u3001\u975e\u4e3b\u5c5e\u6027<\/h5>\n

1\u3001\u4e0d\u5305\u542b\u5728\u4efb\u4f55\u7801\u4e2d\u7684\u5c5e\u6027<\/p>\n

3\u3001\u5168\u7801<\/h5>\n

1\u3001\u6574\u4e2a\u5c5e\u6027\u7ec4\u662f\u7801\uff0c\u79f0\u4e3a\u5168\u7801<\/p>\n

2\u3001\u5c31\u662f\u6240\u6709\u7801\u90fd\u8981\u786e\u5b9a\u624d\u80fd\u77e5\u9053\u552f\u4e00\u7684\u4e00\u6761\u8bb0\u5f55<\/p>\n

2\u3001\u4f8b\u5b50<\/p>\n

\"image-20230912224350204\"<\/div><\/p>\n

3\u3001\u5b9a\u4e49\u4e94<\/h4>\n

1\u3001\u5173\u7cfb\u6a21\u5f0fR\u4e2d\u5c5e\u6027\u6216\u5c5e\u6027\u7ec4X\u5e76\u975eR\u7684\u7801\uff08\u53ef\u80fd\u662f\u4e3b\u5c5e\u6027\uff0c\u4e5f\u53ef\u80fd\u662f\u975e\u4e3b\u5c5e\u6027\uff09\uff0c\u4f46\u662fX\u662f\u53e6\u4e00\u4e2a\u5173\u7cfb\u6a21\u5f0f\u7684\u7801\uff0c\u5219\u79f0\u4e3aX\u662fR\u7684\u5916\u90e8\u7801\uff0c\u4e5f\u53eb\u5916\u7801<\/p>\n

2\u3001\u4f8b\u5b50<\/p>\n

\"image-20230912225003307\"<\/div><\/p>\n

3\u3001\u4e3b\u7801\u4e0e\u5916\u90e8\u7801\u4e00\u8d77\u63d0\u4f9b\u4e86\u8868\u793a\u5173\u7cfb\u95f4\u8054\u7cfb\u7684\u624b\u6bb5<\/p>\n

6.2.3\u3001\u8303\u5f0f<\/h3>\n

1\u3001\u5b9a\u4e49<\/h4>\n

1\u3001\u8303\u5f0f\u662f\u7b26\u5408\u67d0\u4e00\u79cd\u7ea7\u522b\u7684\u5173\u7cfb\u6a21\u5f0f\u7684\u96c6\u5408\uff0c\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7684\u5173\u7cfb\u5fc5\u987b\u6ee1\u8db3\u4e00\u5b9a\u7684\u8981\u6c42\uff0c\u6ee1\u8db3\u4e0d\u540c\u7a0b\u5ea6\u8981\u6c42\u4e3a\u4e0d\u540c\u8303\u5f0f<\/p>\n

2\u3001\u53ef\u4ee5\u7406\u89e3\u4e3a\u89c4\u5219<\/p>\n

2\u3001\u5206\u7c7b<\/h4>\n

\"image-20230912225827389\"<\/div><\/p>\n

3\u3001\u5404\u79cd\u8303\u5f0f\u4e4b\u95f4\u5b58\u5728\u8054\u7cfb<\/h4>\n

1\u3001\u5185\u5bb9<\/h5>\n

1\u30015NF\u22084NF\u22083NF\u22082NF\u22081NF<\/p>\n

2\u3001\u56fe\u793a<\/p>\n

\"image-20230912230329331\"<\/div><\/p>\n

3\u3001\u89c4\u8303\u5316<\/p>\n

\u2460\u6307\u4e00\u4e2a\u4f4e\u4e00\u7ea7\u8303\u5f0f\u7684\u5173\u7cfb\u6a21\u5f0f\uff0c\u901a\u8fc7\u6a21\u4eff\u5206\u89e3\u8f6c\u6362\u4e3a\u82e5\u5e72\u4e2a\u9ad8\u4e00\u7ea7\u8303\u5f0f\u7684\u5173\u7cfb\u6a21\u5f0f\u96c6\u5408\u7684\u8fc7\u7a0b<\/p>\n

6.2.4\u30011NF<\/h3>\n

1\u3001\u4e00\u4e2a\u5173\u7cfb\u4e2d\uff0c\u4e0d\u53ef\u518d\u5206\u9694\u7684\u72ec\u7acb\u7684\u5355\u5143\u683c\u6570\u636e\u5c31\u662f\u7b2c\u4e00\u8303\u5f0f<\/p>\n

6.2.5\u30012NF<\/h3>\n

1\u3001\u5b9a\u4e49\u516d<\/h4>\n

1\u3001\u82e5\u5173\u7cfb\u6a21\u5f0fR\u22081NF\uff08R\u6ee1\u8db3\u7b2c\u4e00\u8303\u5f0f\u8981\u6c42\uff09\u3001\u5e76\u4e14\u6bcf\u4e00\u4e2a\u975e\u4e3b\u5c5e\u6027\u90fd\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56\u4e8e\u4efb\u4f55\u4e00\u4e2a\u5019\u9009\u7801\uff08\u5c31\u662f\u4e00\u4e2a\u5019\u9009\u7801\u5c31\u80fd\u63a8\u51fa\u975e\u4e3b\u5c5e\u6027\u7684\u503c\uff09\uff0c\u5219R\u22082NF<\/p>\n

2\u3001\u4f8b\u5b50<\/p>\n

\"image-20230912231149221\"<\/div><\/p>\n

3\u3001\u53d1\u73b0\u6709\u90e8\u5206\u4e0d\u662f\u5b8c\u5168\u4f9d\u8d56\u5173\u7cfb\uff08\u56fe\u793a\uff1a\uff09<\/p>\n

\"image-20230912231428699\"<\/div><\/p>\n

4\u3001\u8bf4\u660e<\/p>\n

\u2460\u865a\u7ebf\u8868\u793a\u90e8\u5206\u51fd\u6570\u4f9d\u8d56<\/p>\n

\u2461\u98de\u4e3b\u5c5e\u6027Sdept\u3001Sloc\u5e76\u4e0d\u5b8c\u5168\u4f9d\u8d56\u4e8e\u7801<\/p>\n

\u2462\u5173\u7cfb\u6a21\u5f0fS-L-C\u4e0d\u5c5e\u4e8e2NF<\/p>\n

2\u3001\u4e0d\u5c5e\u4e8e\u7b2c\u4e8c\u8303\u5f0f\uff0c\u5c31\u4f1a\u51fa\u73b0\u95ee\u9898<\/h4>\n

1\u3001\u63d2\u5165\u5f02\u5e38<\/h5>\n

1\u3001\u63d2\u5165\u4e00\u4e2a\u65b0\u751f\uff0c\u4f46\u8be5\u65b0\u751f\u6ca1\u6709\u9009\u8bfe\uff0c\u5c31\u6ca1\u6709Cno\uff0c\u7531\u4e8e\u63d2\u5165\u5143\u7ec4\uff08\u884c\uff09\u5fc5\u987b\u6709\u4e3b\u7801\u503c\uff0c\u6240\u4ee5\u5c31\u63d2\u5165\u5931\u8d25<\/p>\n

2\u3001\u5220\u9664\u5f02\u5e38<\/h5>\n

1\u3001\u5982\u679cS4\uff0c\u9009\u4e86C3\u8fd9\u95e8\u8bfe\uff0c\u73b0\u5728\u4e0d\u9700\u8981\u4e86\uff0c\u5220\u9664C3\uff0c\u5c31\u4f1a\u628a\u5143\u7ec4\uff08\u6574\u884c\uff09\u5220\u9664\uff0c\u5176\u4ed6\u4fe1\u606f\u4e5f\u88ab\u5220\u9664\u4e86<\/p>\n

3\u3001\u4fee\u6539\u590d\u6742<\/h5>\n

1\u3001\u4e00\u4e2a\u5b66\u751f\u9009\u4e8610\u95e8\u8bfe\uff0c\u4f1a\u670910\u6761\u8bb0\u5f55\uff0c\u6240\u4ee5\u4f1a\u6bd4\u8f83\u9ebb\u70e6\u548c\u590d\u6742<\/p>\n

3\u3001\u95ee\u9898\u539f\u56e0<\/h4>\n

1\u3001\u4e24\u4e2a\u975e\u4e3b\u5c5e\u6027\uff0cSdept\/Sloc\u4e0d\u662f\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56<\/p>\n

4\u3001\u89e3\u51b3\u65b9\u6cd5<\/h4>\n

1\u3001\u7528\u6295\u5f71\u5206\u89e3\u628a\u5173\u7cfb\u6a21\u5f0fS-L-C\u5206\u89e3\u6210\u4e24\u4e2a\u5173\u7cfb\u6a21\u5f0f<\/p>\n

2\u3001\u5c31\u5c06Sdept\u3001Sloc\u5206\u79bb\u51fa\u6765\u5355\u72ec\u5efa\u7acb\u5173\u7cfb<\/p>\n

3\u3001SC(Sno,Cno,Grade)\u56fe<\/p>\n

\"image-20230912232406579\"<\/div><\/p>\n

4\u3001S-L(Sno,Sdept,Sloc)\u56fe<\/p>\n

\"image-20230912232415765\"<\/div><\/p>\n

5\u3001SC\u7684\u7801\u4e3a\uff08Sno\uff0cCno\uff09\uff0cSL\u7684\u5417\u4e3aSno\uff0c\u8fd9\u6837\u5c31\u8ba9\u975e\u4e3b\u5c5e\u6027\u5bf9\u7801\u90fd\u662f\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56\u4e86<\/p>\n

6.2.6\u30013NF<\/h3>\n

1\u3001\u5b9a\u4e49\u4e03<\/h4>\n

1\u3001\u5173\u7cfb\u6a21\u5f0fR<U,F>\u22081NF\uff0c\u82e5R\u4e2d\u4e0d\u5b58\u5728<\/strong>\u8fd9\u6837\u7684\u7801X\u3001\u5c5e\u6027\u7ec4Y\u53ca\u975e\u4e3b\u5c5e\u6027Z\uff08Y\u2209Z)\uff0c\u4f7f\u5f97X->Y,Y->Z\uff0c\u6210\u7acbY\u4e0d\u4f9d\u8d56X<\/p>\n

2\u3001\u5c31\u662f\u4e0d\u80fd\u6709\u51fd\u6570\u7684\u4f20\u9012\uff0c\u5c31\u662f\u7b2c\u4e09\u8303\u5f0f<\/p>\n

3\u3001\u4f8b\u5b50<\/p>\n

\"image-20230912233040658\"<\/div><\/p>\n

6.2.7\u3001BCNF<\/h3>\n

1\u3001\u662f\u7531Boyce\u548cCodd\u63d0\u51fa\uff0c\u6bd43NF\u66f4\u8fdb\u4e00\u6b65\uff0c \u901a\u5e38\u8ba4\u4e3a\u662f\u7b2c\u4e09\u8303\u5f0f\u7684\u4fee\u6b63\uff0c\u4e5f\u53eb\u6269\u5145\u7684\u7b2c\u4e09\u8303\u5f0f<\/p>\n

1\u3001\u5b9a\u4e49\u516b<\/h4>\n

1\u3001\u8bbe\u5173\u7cfb\u6a21\u5f0fR<U,F>\u22081NF\uff0c\u82e5X\u63a8\u51faY\uff0cY\u4e0d\u5c5e\u4e8eX\u65f6\uff0cX\u5fc5\u987b\u6709\u4e2a\u4e3b\u7801\uff0c\u5219\u8868\u793aR<U,F>\u2208BCNF<\/p>\n

2\u3001\u6362\u53e5\u8bdd\u8bf4\uff0c\u5c31\u662f\u5728\u5173\u7cfb\u6a21\u5f0fR<U,F>\u4e2d\uff0c\u5982\u679c\u6bcf\u4e00\u4e2a\u51b3\u5b9a\u5c5e\u6027\u96c6\u90fd\u5305\u542b\u5019\u9009\u7801\uff0c\u5219R\u5c5e\u4e8eBCNF<\/p>\n

2\u3001BCNF\u7684\u5173\u7cfb\u6a21\u5f0f\u5177\u6709\u7684\u6027\u8d28<\/h4>\n

1\u3001\u6240\u6709\u975e\u4e3b\u5c5e\u6027\u90fd\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56\u4e8e\u6bcf\u4e2a\u5019\u9009\u7801<\/p>\n

2\u3001\u6240\u6709\u5c5e\u6027\u90fd\u5b8c\u5168\u51fd\u6570\u4f9d\u8d56\uff08P\uff09\u4e8e\u6bcf\u4e2a\u4e0d\u5305\u542b\u5b83\u7684\u5019\u9009\u7801<\/p>\n

3\u3001\u6ca1\u6709\u4efb\u4f55\u5c5e\u6027\u5b8c\u5168\u4f9d\u8d56\u4e8e\u975e\u7801\u7684\u4efb\u4f55\u4e00\u7ec4\u5c5e\u6027<\/p>\n

4\u3001\u6838\u5fc3\u8981\u6c42\u5c31\u662f\u5fc5\u987b\u6709\u4e00\u4e2a\u4e3b\u5c5e\u6027\uff0c\u53ef\u4ee5\u9000\u51fa\u975e\u4e3b\u5c5e\u6027\u3001\u5019\u9009\u7801\u3001\u548c\u4e3b\u5c5e\u6027<\/p>\n

5\u3001\u5982\u679c\u4e00\u4e2a\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7684\u6240\u6709\u5173\u7cfb\u6a21\u5f0f\u90fd\u5c5e\u4e8eBCNF\uff0c\u90a3\u4e48\u5728\u51fd\u6570\u4f9d\u8d56\u8303\u7574\u5185\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u6a21\u5f0f\u7684\u5f7b\u5e95\u5206\u89e3\uff0c\u8fbe\u5230\u6700\u9ad8\u89c4\u8303\u5316\u7a0b\u5ea6\uff0c\u6d88\u9664\u4e86\u63d2\u5165\u5f02\u5e38\u548c\u5220\u9664\u5f02\u5e38<\/p>\n

6\u3001\u4f8b\u5b50<\/p>\n

\"image-20230913203405445\"<\/div><\/p>\n

7\u3001\u4f8b\u5b50<\/p>\n

\"image-20230913204232732\"<\/div><\/p>\n
1\u3001\u8bf4\u660e<\/h5>\n

1\u3001\u5bf9\u4e8e\u4e0d\u662fBCNF\u5173\u7cfb\u6a21\u5f0f\uff0c\u5b58\u5728\u4e0d\u5408\u7406\u7684\u5730\u65b9\u3002\u53ef\u4ee5\u5c06\u975eBCNF\u6a21\u5f0f\u5206\u89e3\u4e3aBCNF<\/p>\n

2\u30013NF\u548cBCNF\u662f\u5728\u51fd\u6570\u4f9d\u8d56\u7684\u6761\u4ef6\u4e0b\u5bf9\u6a21\u5f0f\u5206\u89e3\u6240\u80fd\u8fbe\u5230\u7684\u5206\u79bb\u7a0b\u5ea6\u7684\u6d4b\u5ea6<\/p>\n

3\u3001\u5c31\u662f\u628aBCNF\u5f53\u6210\u4e00\u4e2a\u5c3a\u5b50\uff0c\u4f5c\u4e3a\u662f\u5426\u5b9e\u73b0\u5f7b\u5e95\u5206\u79bb\uff0c\u6d88\u9664\u63d2\u5165\u3001\u5220\u9664\u7684\u4f9d\u8d56<\/p>\n

4\u30013NF\u4e0d\u5b8c\u5168\u5206\u79bb\uff0c\u6240\u4ee5\u9700\u8981BCNF\u6765\u5bf93NF\u8fdb\u884c\u5b8c\u5168\u5206\u79bb\uff08\u4e3b\u8981\u662fX\u4e2d\u7684\u4e3b\u7801\u4e5f\u5206\u79bb\uff09<\/p>\n

6.2.8\u3001\u591a\u503c\u4f9d\u8d56<\/h3>\n

1\u3001\u5185\u5bb9<\/h4>\n

1\u3001\u7ed9\u51fa\u4e00\u4e2a\u503c\uff0c\u53ef\u4ee5\u63a8\u51fa\u591a\u4e2a\u503c<\/p>\n

2\u3001\u56fe\u4f8b<\/p>\n

\"image-20230913210230292\"<\/div><\/p>\n

2\u3001\u5b58\u5728\u95ee\u9898<\/h4>\n

1\u3001\u6570\u636e\u5197\u4f59\u5927\uff1a\u6709\u591a\u5c11\u540d\u4efb\u8bfe\u6559\u5e08\uff0c\u53c2\u8003\u4e66\u5c31\u8981\u5b58\u591a\u5c11\u6b21<\/p>\n

2\u3001\u589e\u52a0\u64cd\u4f5c\u590d\u6742\uff1a\u5f53\u4e00\u4e2a\u8bfe\u7a0b\u589e\u52a0\u4e00\u672c\u4e66\uff0c\u6539\u8bfe\u7a0b\u6709\u591a\u5c11\u53c2\u7167\u4e66\uff0c\u5c31\u5fc5\u987b\u63d2\u5165\u591a\u5c11\u5143\u7ec4<\/p>\n

3\u3001\u5220\u9664\u64cd\u4f5c\u590d\u6742\uff1a\u67d0\u4e00\u95e8\u8bfe\u8981\u53bb\u6389\u4e00\u672c\u53c2\u8003\u4e66\uff0c\u6539\u8bfe\u7a0b\u6709\u591a\u5c11\u540d\u8001\u5e08\uff0c\u5c31\u5fc5\u987b\u5220\u9664\u591a\u5c11\u4e2a\u5143\u7ec4<\/p>\n

4\u3001\u4fee\u6539\u64cd\u4f5c\u590d\u6742\uff1a\u67d0\u4e00\u95e8\u8bfe\u8981\u4fee\u6539\u4e00\u672c\u53c2\u8003\u4e66\uff0c\u6539\u8bfe\u6709\u591a\u5c11\u8001\u5e08\uff0c\u5c31\u5fc5\u987b\u4fee\u6539\u591a\u5c11\u4e2a\u5143\u7ec4<\/p>\n

3\u3001\u5b9a\u4e49\u4e5d<\/h4>\n

1\u3001\u8bbeR(U)\u662f\u5c5e\u6027\u96c6U\u4e0a\u7684\u4e00\u4e2a\u5173\u7cfb\u6a21\u5f0f\uff0cX\u3001Y\u3001Z\u662fU\u7684\u5b50\u96c6\uff0c\u5e76\u4e14Z=U-X-Y\u3002\u5173\u7cfb\u6a21\u5f0fR(U)\u4e2d\u591a\u503c\u4f9d\u8d56X\u63a8\u51faY\u6210\u7acb\uff0c\u5f53\u4e14\u4ec5\u5f53\u5bf9R(U)\u7684\u4efb\u4e00\u5173\u7cfbr\uff0c\u7ed9\u5b9a\u7684\u4e00\u5bf9\uff08x\uff0cz\uff09\u503c\uff0c\u6709\u4e00\u7ec4Y\u7684\u503c\uff0c\u8fd9\u7ec4\u503c\u4ec5\u4ec5\u51b3\u5b9a\u4e8ex\u503c\u57dfz\u503c\u65e0\u5173<\/p>\n

2\u3001\u5c31\u662f\u8bf4\u5047\u8bbe\u4e00\u4e2a\u8bfe\u7a0b\u6709\u591a\u4e2a\u8001\u5e08\u5728\uff0c\u4e00\u4e2a\u8bfe\u7a0b\u53c8\u6709\u591a\u672c\u53c2\u8003\u4e66\uff0c\u6240\u4ee5\u8001\u5e08\u591a\u503c\u4f9d\u8d56\u8bfe\u7a0b\uff0c\u53c2\u8003\u4e66\u591a\u503c\u4f9d\u8d56\u8bfe\u7a0b<\/p>\n

1\u3001\u591a\u503c\u4f9d\u8d56\u53e6\u4e00\u4e2a\u7b49\u4ef7\u4f9d\u8d56\u5b9a\u4e49<\/h5>\n

\"image-20230913213816628\"<\/div><\/p>\n

1\u3001\u5c31\u662f\u8bf4\u5982\u3010\u591a\u503c\u4f9d\u8d56\u56fe\u793a\u4e2d\u3011\u9009\u51fa\u4e24\u884c\u5143\u7d20\uff0c\u628a\u4ed6\u4eec\u7684Y\u8fdb\u884c\u4ea4\u6362\uff0c\u5f97\u5230\u7684\u65b0\u884c\u6570\u636e\uff0c\u4f9d\u7136\u662f\u8868\u4e2d\u5176\u4e2d\u4e00\u884c\u7684\u6570\u636e\u5c31\u662f\uff0c\u591a\u503c\u4f9d\u8d56\u7684\u53e6\u4e00\u4e2a\u7b49\u4ef7\u5b9a\u4e49<\/p>\n

2\u3001\u5e73\u51e1\u591a\u503c\u4f9d\u8d56<\/h5>\n

1\u3001\u82e5X\u591a\u503c\u4f9d\u8d56\u4e8eY\uff0c\u4e14Z\u662f\u7a7a\u7684\uff0c\u90a3\u4e48X->->Y\u4e3a\u5e73\u51e1\u7684\u591a\u503c\u4f9d\u8d56<\/p>\n

4\u3001\u591a\u503c\u4f9d\u8d56\u7684\u6027\u8d28<\/h4>\n

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2\u3001\u591a\u503c\u4f9d\u8d56\u5177\u6709\u4f20\u9012\u6027\uff1a\u82e5Y\u591a\u503c\u4f9d\u8d56\u4e0eX\uff0cZ\u591a\u503c\u4f9d\u8d56\u4e8eY\uff0c\u5219Z-Y\u5c31\u591a\u503c\u4f9d\u8d56\u4e8eX<\/p>\n

3\u3001\u51fd\u6570\u4f9d\u8d56\u662f\u591a\u503c\u4f9d\u8d56\u7684\u7279\u6b8a\u60c5\u51b5\uff1a\u82e5X\u80fd\u63a8\u51faY\uff0c\u5219X\u80fd\u591a\u503c\u63a8\u51faY<\/p>\n

4\u3001\u5982\u679cX\u591a\u503c\u63a8\u51faY,X\u591a\u503c\u63a8\u51faZ\uff0c\u5219X\u591a\u503c\u63a8\u51faYZ<\/p>\n

5\u3001\u5982\u679cX\u591a\u503c\u63a8\u51faY\uff0cX\u591a\u503c\u63a8\u51faZ\uff0c\u5219X\u591a\u503c\u63a8\u51faY\u2229Z<\/p>\n

6\u3001\u5982\u679cX\u591a\u503c\u63a8\u51faY\uff0cX\u591a\u503c\u63a8\u51faZ\uff0c\u5219X\u591a\u503c\u63a8\u51faY-Z\uff08\u5728Y\u4e2d\u4e0d\u5728Z\u4e2d\u7684\u503c\uff09\uff0cX\u591a\u503c\u63a8\u51faZ-Y\uff08\u5728Z\u4e2d\u4e0d\u5728Y\u4e2d\u7684\u503c\uff09<\/p>\n

5\u3001\u591a\u503c\u4f9d\u8d56\u548c\u51fd\u6570\u4f9d\u8d56\u7684\u533a\u522b<\/h4>\n

1\u3001\u591a\u503c\u4f9d\u8d56\u7684\u6709\u6548\u6027\u548c\u5c5e\u6027\u96c6\u7684\u8303\u56f4\u6709\u5173<\/h5>\n

1\u3001<\/p>\n

\"image-20230913223315989\"<\/div><\/p>\n

2\u3001<\/p>\n

\"image-20230913223632053\"<\/div><\/p>\n

6.2.9\u30014NF<\/h3>\n

1\u3001\u5b9a\u4e49\u5341<\/h4>\n

1\u3001\u5173\u7cfb\u6a21\u5f0fR<U,F>\u22081NF\uff0c\u5bf9\u4e8eR\u7684\u6bcf\u4e2a\u975e\u5e73\u51e1\u4f9d\u8d56\u503cX-->Y(X\u4e0d\u5c5e\u4e8eY)\uff0cX\u90fd\u542b\u6709\u7801\uff0c\u5219R(U,F)\u22084NF<\/p>\n

1\u3001\u8bf4\u660e<\/h5>\n

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3\u3001<\/p>\n

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6.2.10\u3001\u89c4\u8303\u5316\u5c0f\u7ed3<\/h3>\n

1\u3001\u5185\u5bb9<\/h4>\n

1\u3001\u5728\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\uff0c\u5bf9\u5173\u7cfb\u6a21\u5f0f\u7684\u57fa\u672c\u8981\u6c42\u662f\u6ee1\u8db3\u7b2c\u4e00\u8303\u5f0f<\/p>\n

2\u3001\u89c4\u8303\u5316\u7a0b\u5ea6\u8fc7\u4f4e\u7684\u5173\u7cfb\uff0c\u4e0d\u4e00\u5b9a\u5f88\u597d\u63cf\u8ff0\u73b0\u5b9e\u4e16\u754c\uff0c\u53ef\u80fd\u5b58\u5728\u63d2\u5165\u3001\u5220\u9664\u3001\u5f02\u5e38\u3001\u4fee\u6539\u590d\u6742\u3001\u6570\u636e\u5197\u4f59\u7b49\u95ee\u9898\uff1b\u8981\u89e3\u51b3\u53ea\u80fd\u5bf9\u5176\u5173\u7cfb\u8fdb\u884c\u89c4\u8303\u5316\uff0c\u8f6c\u6362\u4e3a\u9ad8\u7ea7\u8303\u5f0f<\/p>\n

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5\u3001\u89c4\u8303\u5316\u7684\u57fa\u672c\u601d\u60f3<\/h6>\n

1\u3001\u9010\u6e10\u6d88\u9664\u6570\u636e\u4f9d\u8d56\u5316\u603b\u4e0d\u5408\u9002\u7684\u90e8\u5206\uff0c\u8fdb\u884c\u5206\u79bb<\/p>\n

2\u3001\u91c7\u7528\u201c\u4e00\u4e8b\u4e00\u5730\u201d\u7684\u6a21\u5f0f\u8bbe\u8ba1\u539f\u5219<\/p>\n

3\u3001\u89c4\u8303\u5316\u5b9e\u8d28\u4e0a\u662f\u6982\u5ff5\u7684\u5355\u4e00\u5316<\/p>\n

6\u3001\u4e0d\u80fd\u8bf4\u89c4\u8303\u5316\u7a0b\u5ea6\u8d8a\u9ad8\u5173\u7cfb\u6a21\u5f0f\u5c31\u8d8a\u597d\uff1b\u5fc5\u987b\u6839\u636e\u5b9e\u9645\u73b0\u5b9e\u4e16\u754c\u548c\u7528\u6237\u9700\u6c42\u8fdb\u4e00\u6b65\u6307\u5b9a\u5408\u9002\u7684\u8303\u5f0f<\/p>\n

2\u3001\u8303\u5f0f\u5316\u7684\u8fc7\u7a0b<\/h4>\n

1\u3001\u57fa\u672c\u6b65\u9aa4\u56fe<\/p>\n

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6.3\u3001\u6570\u636e\u4f9d\u8d56\u7684\u516c\u7406\u7cfb\u7edf<\/h2>\n

1\u3001\u5b9a\u4e49\u5341\u4e00<\/h4>\n

1\u3001\u5185\u5bb9<\/p>\n

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2\u3001Armstrong\u516c\u7406\u7cfb\u7edf<\/h4>\n

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1\u3001\u63a8\u7406\u89c4\u5219<\/h5>\n

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1\u3001A1\u81ea\u53cd\u7387<\/h6>\n

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2\u3001A2\u589e\u5e7f\u5f8b<\/h6>\n

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3\u3001A3\u4f20\u9012\u5f8b<\/h6>\n

1\u3001X\u63a8\u51faY\uff0cY\u63a8\u51faZ\u4e3aF\u6240\u8574\u542b\uff0c\u5219X\u63a8\u51faZ\u4e3aF\u6240\u8574\u542b<\/p>\n

2\u3001\u8bc1\u660e\u4ee5\u4e0a\u89c4\u5219\u7684\u6b63\u786e\u6027<\/h5>\n

1\u3001

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3\u3001\u6839\u636e\u4ee5\u4e0a\u89c4\u5219\u80fd\u63a8\u51fa<\/h5>\n

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3\u3001\u5206\u89e3\u89c4\u5219\uff1a\u6709X\u63a8\u51faY\u53caZ\u2208\u7b49\u4e8eY\uff0c\u5219X\u63a8\u51faZ<\/p>\n

4\u3001\u6839\u636e\u5408\u5e76\u89c4\u5219\u548c\u5206\u89e3\u89c4\u5219\uff0c\u53ef\u5f97<\/h5>\n

1\u3001\u5f15\u7406\uff1aX\u63a8\u51faAk\uff0c\u6210\u7acb\u5145\u5206\u5fc5\u8981\u6761\u4ef6\u6761\u4ef6\u662fX\u63a8\u51faAi\u6210\u7acb\uff08i=1,2,3\u2026\u2026k\uff09<\/p>\n

3\u3001\u5b9a\u4e49\u5341\u4e8c<\/h4>\n

1\u3001\u5185\u5bb9<\/h5>\n

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2\u3001\u8bf4\u660e<\/h5>\n

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4\u3001\u5b9a\u4e49\u5341\u4e09<\/h4>\n

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