{"id":66587,"date":"2026-01-26T22:58:25","date_gmt":"2026-01-26T14:58:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/66587.html"},"modified":"2026-01-26T22:58:25","modified_gmt":"2026-01-26T14:58:25","slug":"%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%ad%89%e7%ba%a7%e8%80%83%e8%af%95-armstrong6%e5%a4%a7%e8%a7%84%e5%88%99%e9%80%9a%e4%bf%97%e8%ae%b2%e8%a7%a3-%e4%b8%9c%e6%96%b9%e4%bb%99%e7%9b%9f%e7%bb%83","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/66587.html","title":{"rendered":"\u8ba1\u7b97\u673a\u7b49\u7ea7\u8003\u8bd5\u2014Armstrong6\u5927\u89c4\u5219\u901a\u4fd7\u8bb2\u89e3\u2014\u4e1c\u65b9\u4ed9\u76df\u7ec3\u6c14\u671f"},"content":{"rendered":"

\u5148\u5212\u6838\u5fc3：3 \u6761\u57fa\u672c\u516c\u7406\u662f\u63a8\u5bfc\u6839\u57fa（\u5929\u7136\u6210\u7acb \/ \u5fc5\u771f），3 \u6761\u63a8\u8bba\u662f\u516c\u7406\u7ec4\u5408\u7528\u6cd5（\u7b80\u5316\u63a8\u5bfc），\u8f6f\u8003\u5168\u8003\u5e94\u7528，\u4e0d\u8003\u80cc\u8bf5\u5b9a\u4e49，\u8bb0\u5dee\u5f02 + \u573a\u666f + \u8003\u9898\u8003\u6cd5\u5c31\u591f<\/p>\n

\u4e09\u5927\u57fa\u672c\u516c\u7406<\/h3>\n\n\u82f1\u6587\u540d\u79f0\u4e2d\u6587\u540d\u79f0\u8bfb\u97f3（\u8c10\u97f3）<\/tr>\n\n\n\n\n
Reflexivity Rule<\/td>\n\u81ea\u53cd\u5f8b<\/td>\n\/r\u026a\u02ccfl\u025bk\u02c8s\u026av\u0259ti\/（\u745e – \u5f17\u83b1\u514b – \u897f – \u7ef4 – \u63d0）<\/td>\n<\/tr>\n
Augmentation Rule<\/td>\n\u589e\u5e7f\u5f8b<\/td>\n\/\u02cc\u0254\u02d0\u0261m\u025bn\u02c8te\u026a\u0283n\/（\u5965\u683c – \u95e8 – \u592a – \u6df1）<\/td>\n<\/tr>\n
Transitivity Rule<\/td>\n\u4f20\u9012\u5f8b<\/td>\n\/\u02cctr\u00e6ns\u026a\u02c8t\u026av\u0259ti\/（\u5ddd – \u897f – \u63d0 – \u7ef4 – \u63d0）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

\u4e09\u5927\u5e38\u7528\u63a8\u8bba<\/h3>\n\n\u82f1\u6587\u540d\u79f0\u4e2d\u6587\u540d\u79f0\u8bfb\u97f3（\u8c10\u97f3）<\/tr>\n\n\n\n\n
Union Rule<\/td>\n\u5408\u5e76\u89c4\u5219<\/td>\n\/\u02c8ju\u02d0ni\u0259n\/（\u4f18 – \u5c3c – \u6069）<\/td>\n<\/tr>\n
Decomposition Rule<\/td>\n\u5206\u89e3\u89c4\u5219<\/td>\n\/\u02ccdi\u02d0k\u0252mp\u0259\u02c8z\u026a\u0283n\/（\u8fea – \u5eb7\u5761 – \u897f – \u6df1）<\/td>\n<\/tr>\n
Pseudotransitivity Rule<\/td>\n\u4f2a\u4f20\u9012\u89c4\u5219<\/td>\n\/\u02ccsju\u02d0do\u028a\u02cctr\u00e6ns\u026a\u02c8t\u026av\u0259ti\/（\u4fee – \u591a – \u5ddd – \u897f – \u63d0 – \u7ef4 – \u63d0）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e00\u30016 \u6761\u89c4\u5219\u6838\u5fc3\u5dee\u5f02（\u4e00\u53e5\u8bdd\u5206\u6e05，\u4e0d\u6df7\u6dc6）<\/h2>\n
  • \u81ea\u53cd\u5f8b：\u53ea\u770b\u5c5e\u6027\u5305\u542b\u5173\u7cfb，\u4e0d\u7528\u4efb\u4f55\u5df2\u77e5\u4f9d\u8d56，\u5929\u7136\u63a8\u5bfc，\u65e0\u524d\u63d0\u6761\u4ef6<\/li>\n
  • \u589e\u5e7f\u5f8b：\u7ed9\u5df2\u6709\u4f9d\u8d56\u4e24\u8fb9\u52a0\u76f8\u540c\u5c5e\u6027，\u4f9d\u8d56\u4ecd\u6210\u7acb，\u524d\u63d0\u662f\u6709 1 \u6761\u5df2\u77e5\u4f9d\u8d56<\/li>\n
  • \u4f20\u9012\u5f8b：\u4f9d\u8d56\u6210\u94fe\u63a8\u5bfc\u65b0\u4f9d\u8d56，\u524d\u63d0\u662f\u6709 2 \u6761\u9996\u5c3e\u76f8\u8fde\u7684\u5df2\u77e5\u4f9d\u8d56<\/li>\n
  • \u5408\u5e76\u89c4\u5219：\u540c\u4e00\u5de6\u90e8\u7684\u591a\u6761\u4f9d\u8d56，\u5408\u5e76\u53f3\u90e8\u5c5e\u6027，\u524d\u63d0\u662f\u5de6\u90e8\u5b8c\u5168\u76f8\u540c<\/li>\n
  • \u5206\u89e3\u89c4\u5219：\u53f3\u90e8\u591a\u5c5e\u6027\u7684\u4f9d\u8d56，\u62c6\u5206\u6210\u591a\u6761\u5355\u5c5e\u6027\u4f9d\u8d56，\u662f\u5408\u5e76\u7684\u9006\u64cd\u4f5c<\/li>\n
  • \u4f2a\u4f20\u9012\u89c4\u5219：\u4f20\u9012\u5f8b\u7684\u5ef6\u4f38，\u591a\u4e86 1 \u4e2a\u9644\u52a0\u5c5e\u6027，\u524d\u63d0\u662f 2 \u6761\u4f9d\u8d56\u6709\u90e8\u5206\u5173\u8054<\/li>\n

    \u4e8c\u3001 \u9152\u5e97\u7ba1\u7406\u7cfb\u7edf + \u8d85\u5e02\u7ba1\u7406\u7cfb\u7edf \u5b9e\u6218\u4e3e\u4f8b（\u8d34\u5408\u5b9e\u64cd\u597d\u7406\u89e3）<\/h2>\n

    \u901a\u7528\u524d\u63d0：\u5148\u660e\u786e 2 \u4e2a\u7cfb\u7edf\u6838\u5fc3\u5c5e\u6027\u4f9d\u8d56（\u57fa\u7840\u573a\u666f）<\/h3>\n

    \u2705 \u9152\u5e97\u7ba1\u7406\u7cfb\u7edf\u6838\u5fc3\u4f9d\u8d56：\u5ba2\u623f\u53f7\u2192\u623f\u578b\u2192\u4ef7\u683c\u3001\u8eab\u4efd\u8bc1\u53f7\u2192\u5ba2\u6237\u59d3\u540d\u2192\u8054\u7cfb\u65b9\u5f0f\u2705 \u8d85\u5e02\u7ba1\u7406\u7cfb\u7edf\u6838\u5fc3\u4f9d\u8d56：\u5546\u54c1\u6761\u7801\u2192\u5546\u54c1\u540d\u79f0\u2192\u5355\u4ef7\u3001\u4f1a\u5458\u5361\u53f7\u2192\u4f1a\u5458\u59d3\u540d\u2192\u79ef\u5206<\/p>\n

    1. \u81ea\u53cd\u5f8b：\u5929\u7136\u63a8\u5bfc，\u4e0d\u7528\u989d\u5916\u6761\u4ef6（\u6700\u57fa\u7840）<\/h3>\n

    \u2705 \u9152\u5e97\u573a\u666f：\u5ba2\u623f\u53f7 {\u623f\u53f7} \u5305\u542b {\u623f\u53f7}，\u63a8\u5bfc \u5ba2\u623f\u53f7\u2192\u5ba2\u623f\u53f7；{\u5ba2\u623f\u53f7，\u5ba2\u6237\u59d3\u540d} \u5305\u542b {\u5ba2\u6237\u59d3\u540d}，\u63a8\u5bfc \u5ba2\u623f\u53f7 + \u5ba2\u6237\u59d3\u540d\u2192\u5ba2\u6237\u59d3\u540d\u2705 \u8d85\u5e02\u573a\u666f：{\u5546\u54c1\u6761\u7801，\u5355\u4ef7} \u5305\u542b {\u5355\u4ef7}，\u63a8\u5bfc \u5546\u54c1\u6761\u7801 + \u5355\u4ef7\u2192\u5355\u4ef7；\u4f1a\u5458\u5361\u53f7\u2192\u4f1a\u5458\u5361\u53f7（\u81ea\u8eab\u4f9d\u8d56）\u2705 \u6838\u5fc3\u70b9：\u5b9e\u64cd\u4e2d\u7528\u6765\u8865\u5168\u9690\u542b\u4f9d\u8d56，\u4e0d\u7528\u523b\u610f\u64cd\u4f5c，\u8003\u8bd5\u91cc\u662f\u63a8\u5bfc\u7684\u9ed8\u8ba4\u524d\u63d0<\/p>\n

    2. \u589e\u5e7f\u5f8b：\u52a0\u5c5e\u6027\u4e0d\u6539\u53d8\u4f9d\u8d56，\u9002\u914d\u591a\u6761\u4ef6\u5173\u8054<\/h3>\n

    \u2705 \u9152\u5e97\u573a\u666f：\u5df2\u77e5 \u5ba2\u623f\u53f7\u2192\u4ef7\u683c，\u589e\u5e7f\u52a0\u300c\u5165\u4f4f\u65e5\u671f\u300d，\u63a8\u5bfc \u5ba2\u623f\u53f7 + \u5165\u4f4f\u65e5\u671f\u2192\u4ef7\u683c + \u5165\u4f4f\u65e5\u671f（\u5bf9\u5e94：\u67d0\u623f\u67d0\u5929\u7684\u4ef7\u683c，\u7cbe\u51c6\u5173\u8054）\u2705 \u8d85\u5e02\u573a\u666f：\u5df2\u77e5 \u5546\u54c1\u6761\u7801\u2192\u5355\u4ef7，\u589e\u5e7f\u52a0\u300c\u8d2d\u4e70\u65e5\u671f\u300d，\u63a8\u5bfc \u5546\u54c1\u6761\u7801 + \u8d2d\u4e70\u65e5\u671f\u2192\u5355\u4ef7 + \u8d2d\u4e70\u65e5\u671f（\u5bf9\u5e94：\u67d0\u5546\u54c1\u67d0\u5929\u7684\u552e\u4ef7，\u8d34\u5408\u4fc3\u9500\u573a\u666f）\u2705 \u6838\u5fc3\u70b9：\u5b9e\u64cd\u7528\u6765\u7cbe\u51c6\u5b9a\u4f4d\u4e1a\u52a1\u6570\u636e，\u907f\u514d\u4f9d\u8d56\u6b67\u4e49<\/p>\n

    3. \u4f20\u9012\u5f8b：\u4f9d\u8d56\u94fe\u6761\u63a8\u5bfc，\u7b80\u5316\u5173\u8054\u67e5\u8be2<\/h3>\n

    \u2705 \u9152\u5e97\u573a\u666f：\u5df2\u77e5 \u5ba2\u623f\u53f7\u2192\u623f\u578b\u3001\u623f\u578b\u2192\u4ef7\u683c，\u4f20\u9012\u63a8\u5bfc \u5ba2\u623f\u53f7\u2192\u4ef7\u683c（\u67e5\u623f\u53f7\u76f4\u63a5\u5f97\u4ef7\u683c，\u4e0d\u7528\u7ed5\u5f2f\u67e5\u623f\u578b）\u2705 \u8d85\u5e02\u573a\u666f：\u5df2\u77e5 \u5546\u54c1\u6761\u7801\u2192\u5546\u54c1\u540d\u79f0\u3001\u5546\u54c1\u540d\u79f0\u2192\u5355\u4ef7，\u4f20\u9012\u63a8\u5bfc \u5546\u54c1\u6761\u7801\u2192\u5355\u4ef7（\u626b\u6761\u7801\u76f4\u63a5\u51fa\u5355\u4ef7，\u63d0\u5347\u6536\u94f6\u6548\u7387）\u2705 \u6838\u5fc3\u70b9：\u5b9e\u64cd\u51cf\u5c11\u5173\u8054\u8868\u67e5\u8be2，\u8003\u8bd5\u9ad8\u9891\u8003\u4f20\u9012\u4f9d\u8d56\u5224\u65ad\u8303\u5f0f<\/p>\n

    \"\"<\/p>\n

    4. \u5408\u5e76\u89c4\u5219：\u540c\u5de6\u90e8\u591a\u4f9d\u8d56\u5408\u5e76，\u7cbe\u7b80\u4f9d\u8d56\u5173\u7cfb<\/h3>\n

    \u2705 \u9152\u5e97\u573a\u666f：\u5df2\u77e5 \u8eab\u4efd\u8bc1\u53f7\u2192\u5ba2\u6237\u59d3\u540d\u3001\u8eab\u4efd\u8bc1\u53f7\u2192\u8054\u7cfb\u65b9\u5f0f，\u5408\u5e76\u63a8\u5bfc \u8eab\u4efd\u8bc1\u53f7\u2192\u5ba2\u6237\u59d3\u540d + \u8054\u7cfb\u65b9\u5f0f（\u67e5\u8eab\u4efd\u8bc1\u53f7\u4e00\u6b21\u6027\u51fa\u5ba2\u6237 2 \u9879\u4fe1\u606f）\u2705 \u8d85\u5e02\u573a\u666f：\u5df2\u77e5 \u4f1a\u5458\u5361\u53f7\u2192\u4f1a\u5458\u59d3\u540d\u3001\u4f1a\u5458\u5361\u53f7\u2192\u79ef\u5206，\u5408\u5e76\u63a8\u5bfc \u4f1a\u5458\u5361\u53f7\u2192\u4f1a\u5458\u59d3\u540d + \u79ef\u5206（\u5237\u4f1a\u5458\u5361\u540c\u6b65\u8c03\u53d6\u59d3\u540d\u548c\u79ef\u5206）\u2705 \u6838\u5fc3\u70b9：\u5b9e\u64cd\u7cbe\u7b80\u4e1a\u52a1\u67e5\u8be2\u903b\u8f91，\u8003\u8bd5\u7528\u6765\u5408\u5e76\u4f9d\u8d56\u96c6\u7b80\u5316\u8ba1\u7b97<\/p>\n

    5. \u5206\u89e3\u89c4\u5219：\u591a\u5c5e\u6027\u4f9d\u8d56\u62c6\u5206，\u7cbe\u51c6\u5355\u72ec\u8c03\u7528<\/h3>\n

    \u2705 \u9152\u5e97\u573a\u666f：\u5df2\u77e5 \u5ba2\u623f\u53f7\u2192\u623f\u578b + \u4ef7\u683c，\u5206\u89e3\u63a8\u5bfc \u5ba2\u623f\u53f7\u2192\u623f\u578b\u3001\u5ba2\u623f\u53f7\u2192\u4ef7\u683c（\u67e5\u623f\u578b \/ \u67e5\u4ef7\u683c\u53ef\u5355\u72ec\u8c03\u7528，\u7075\u6d3b\u9002\u914d\u4e0d\u540c\u4e1a\u52a1）\u2705 \u8d85\u5e02\u573a\u666f：\u5df2\u77e5 \u5546\u54c1\u6761\u7801\u2192\u5546\u54c1\u540d\u79f0 + \u5355\u4ef7，\u5206\u89e3\u63a8\u5bfc \u5546\u54c1\u6761\u7801\u2192\u5546\u54c1\u540d\u79f0\u3001\u5546\u54c1\u6761\u7801\u2192\u5355\u4ef7（\u6536\u94f6\u67e5\u5355\u4ef7\u3001\u5e93\u5b58\u67e5\u540d\u79f0，\u6309\u9700\u62c6\u5206）\u2705 \u6838\u5fc3\u70b9：\u5b9e\u64cd\u9002\u914d\u7cbe\u7ec6\u5316\u4e1a\u52a1\u9700\u6c42，\u8003\u8bd5\u7528\u6765\u62c6\u5206\u4f9d\u8d56\u5224\u65ad\u90e8\u5206\u4f9d\u8d56<\/p>\n

    6. \u4f2a\u4f20\u9012\u89c4\u5219：\u5e26\u9644\u52a0\u5c5e\u6027\u7684\u4f20\u9012，\u9002\u914d\u590d\u6742\u4e1a\u52a1\u5173\u8054<\/h3>\n

    \u2705 \u9152\u5e97\u573a\u666f：\u5df2\u77e5 \u5ba2\u623f\u53f7\u2192\u4ef7\u683c\u3001\u4ef7\u683c + \u5165\u4f4f\u5929\u6570\u2192\u603b\u8d39\u7528，\u4f2a\u4f20\u9012\u63a8\u5bfc \u5ba2\u623f\u53f7 + \u5165\u4f4f\u5929\u6570\u2192\u603b\u8d39\u7528（\u623f\u53f7\u5b9a\u5355\u4ef7，\u52a0\u5929\u6570\u7b97\u603b\u4ef7，\u6838\u5fc3\u6536\u94f6\u903b\u8f91）\u2705 \u8d85\u5e02\u573a\u666f：\u5df2\u77e5 \u5546\u54c1\u6761\u7801\u2192\u5355\u4ef7\u3001\u5355\u4ef7 + \u8d2d\u4e70\u6570\u91cf\u2192\u603b\u91d1\u989d，\u4f2a\u4f20\u9012\u63a8\u5bfc \u5546\u54c1\u6761\u7801 + \u8d2d\u4e70\u6570\u91cf\u2192\u603b\u91d1\u989d（\u6761\u7801\u5b9a\u5355\u4ef7，\u52a0\u6570\u91cf\u7b97\u603b\u4ef7，\u6838\u5fc3\u7ed3\u7b97\u903b\u8f91）\u2705 \u6838\u5fc3\u70b9：\u5b9e\u64cd\u662f\u6838\u5fc3\u4e1a\u52a1\u8ba1\u7b97\u63a8\u5bfc\u903b\u8f91，\u8f6f\u8003\u5e38\u8003\u6b64\u63a8\u5bfc<\/p>\n

    \u4e09\u3001 \u8f6f\u4ef6\u8003\u8bd5\u6838\u5fc3\u8003\u6cd5 + \u4e3e\u4f8b（\u76f4\u51fb\u8003\u70b9，\u4e0d\u8e29\u5751）<\/h2>\n

    \u8f6f\u8003\u4e0d\u8003\u5b9a\u4e49\u9ed8\u5199，\u5168\u8003 3 \u7c7b\u9898，\u5bf9\u5e94 6 \u6761\u89c4\u5219\u7cbe\u51c6\u5e94\u7528，\u8bb0\u4f8b\u9898 + \u89e3\u9898\u601d\u8def\u5373\u53ef<\/p>\n

    \u8003\u6cd5 1： \u4f9d\u8d56\u63a8\u5bfc\u9898（\u9ad8\u9891）：\u7ed9\u5df2\u77e5\u4f9d\u8d56，\u7528\u89c4\u5219\u63a8\u65b0\u4f9d\u8d56，\u5224\u65ad\u9009\u9879\u5bf9\u9519<\/h3>\n

    \u2705 \u4f8b\u9898：\u5df2\u77e5\u5173\u7cfb R (A,B,C,D)，\u4f9d\u8d56 F={A\u2192B，B\u2192C}，\u4e0b\u5217\u63a8\u5bfc\u6b63\u786e\u7684\u662f？A. A\u2192C B. A\u2192D C. B\u2192A D. C\u2192A\u2705 \u89e3\u9898\u601d\u8def：\u7528\u4f20\u9012\u5f8b（A\u2192B，B\u2192C \u21d2 A\u2192C），\u7b54\u6848\u9009 A\u2705 \u5173\u8054\u89c4\u5219：\u4f20\u9012\u5f8b\u5fc5\u8003，\u5e38\u7ed3\u5408\u589e\u5e7f\u5f8b\u3001\u4f2a\u4f20\u9012\u5f8b\u4e00\u8d77\u8003<\/p>\n

    \u8003\u6cd5 2： \u5019\u9009\u952e\u6c42\u89e3\u9898（\u91cd\u4e2d\u4e4b\u91cd）：\u7528 6 \u6761\u89c4\u5219\u63a8\u5bfc\u5c5e\u6027\u95ed\u5305，\u786e\u5b9a\u5019\u9009\u952e<\/h3>\n

    \u2705 \u4f8b\u9898：\u5173\u7cfb R (A,B,C,D,E)，F={A\u2192B，B\u2192C，C\u2192D，E\u2192A}，\u6c42\u5019\u9009\u952e\u2705 \u89e3\u9898\u601d\u8def：\u2460 \u7528\u4f20\u9012\u5f8b\u63a8 A\u2192B\u2192C\u2192D，A \u95ed\u5305\u662f {A,B,C,D}；\u2461 \u52a0 E，E\u2192A，\u4f20\u9012\u5f97 E\u2192A\u2192B\u2192C\u2192D，E \u95ed\u5305 {A,B,C,D,E}，\u8986\u76d6\u6240\u6709\u5c5e\u6027，\u5019\u9009\u952e\u662f E\u2705 \u5173\u8054\u89c4\u5219：\u4f20\u9012\u5f8b + \u81ea\u53cd\u5f8b（\u9ed8\u8ba4\u5c5e\u6027\u81ea\u53cd），\u662f\u6c42\u5019\u9009\u952e\u6838\u5fc3<\/p>\n

    \u8003\u6cd5 3： \u8303\u5f0f\u5224\u65ad\u9898（\u6838\u5fc3）：\u7528\u89c4\u5219\u5224\u65ad\u90e8\u5206 \/ \u4f20\u9012\u4f9d\u8d56，\u5b9a 1\/2\/3NF<\/h3>\n

    \u2705 \u4f8b\u9898：\u5173\u7cfb R (\u5ba2\u623f\u53f7，\u623f\u578b，\u4ef7\u683c)，F={\u5ba2\u623f\u53f7\u2192\u623f\u578b，\u623f\u578b\u2192\u4ef7\u683c}，\u5224\u65ad\u8303\u5f0f\u2705 \u89e3\u9898\u601d\u8def：\u2460 \u5019\u9009\u952e\u662f\u5ba2\u623f\u53f7，\u975e\u4e3b\u5c5e\u6027\u623f\u578b\u3001\u4ef7\u683c；\u2461 \u5ba2\u623f\u53f7\u2192\u623f\u578b（\u5b8c\u5168\u4f9d\u8d56），\u623f\u578b\u2192\u4ef7\u683c，\u4f20\u9012\u5f97\u5ba2\u623f\u53f7\u2192\u4ef7\u683c（\u4f20\u9012\u4f9d\u8d56）；\u2462 \u6ee1\u8db3 2NF，\u4e0d\u6ee1\u8db3 3NF\u2705 \u5173\u8054\u89c4\u5219：\u4f20\u9012\u5f8b\u5224\u4f20\u9012\u4f9d\u8d56，\u5206\u89e3 \/ \u5408\u5e76\u89c4\u5219\u5224\u90e8\u5206\u4f9d\u8d56，\u76f4\u63a5\u5b9a\u8303\u5f0f<\/p>\n

    \u8003\u6cd5 4： \u4f9d\u8d56\u96c6\u5316\u7b80\u9898（\u4e2d\u9891）：\u7528\u5408\u5e76 + \u5206\u89e3\u89c4\u5219，\u7cbe\u7b80\u4f9d\u8d56\u96c6<\/h3>\n

    \u2705 \u4f8b\u9898：F={A\u2192B，A\u2192C，B\u2192D}，\u5316\u7b80\u4f9d\u8d56\u96c6\u2705 \u89e3\u9898\u601d\u8def：\u7528\u5408\u5e76\u89c4\u5219，A\u2192B\u3001A\u2192C \u5408\u5e76\u4e3a A\u2192BC，\u5316\u7b80\u540e F={A\u2192BC，B\u2192D}\u2705 \u5173\u8054\u89c4\u5219：\u5408\u5e76 + \u5206\u89e3\u89c4\u5219\u662f\u5316\u7b80\u6838\u5fc3，\u51cf\u5c11\u4f9d\u8d56\u5197\u4f59<\/p>\n

    \u963f\u96ea\u6280\u672f\u89c2<\/h2>\n

    \u5728\u79d1\u6280\u53d1\u5c55\u6d6a\u6f6e\u4e2d，\u6211\u4eec\u4e0d\u59a8\u79ef\u6781\u6295\u8eab\u6280\u672f\u5171\u4eab\u3002\u4e0d\u6ee1\u8db3\u4e8e\u505a\u53d7\u76ca\u8005，\u66f4\u8981\u4e3b\u52a8\u62c5\u5f53\u8d21\u732e\u8005\u3002\u65e0\u8bba\u662f\u5206\u4eab\u4ee3\u7801\u3001\u64b0\u5199\u6280\u672f\u535a\u5ba2，\u8fd8\u662f\u53c2\u4e0e\u5f00\u6e90\u9879\u76ee\u7ef4\u62a4\u6539\u8fdb，\u6bcf\u4e00\u4e2a\u5fae\u5c0f\u4e3e\u52a8\u90fd\u53ef\u80fd\u8574\u542b\u63a8\u52a8\u6280\u672f\u8fdb\u6b65\u7684\u5de8\u5927\u80fd\u91cf\u3002\u4e1c\u65b9\u4ed9\u76df\u662f\u6c47\u805a\u529b\u91cf\u7684\u5929\u5730，\u6211\u4eec\u643a\u624b\u5728\u6b64\u63a2\u7d22\u7845\u57fa\u751f\u547d，\u4e3a\u79d1\u6280\u8fdb\u6b65\u6dfb\u7816\u52a0\u74e6\u3002<\/p>\n

    Hey folks, in this wild tech – driven world, why not dive headfirst into the whole tech – sharing scene? Don't just be the one reaping all the benefits; step up and be a contributor too. Whether you're tossing out your code snippets, hammering out some tech blogs, or getting your hands dirty with maintaining and sprucing up open – source projects, every little thing you do might just end up being a massive force that pushes tech forward. And guess what? The Eastern FairyAlliance is this awesome place where we all come together. We're gonna team up\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

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    \n\u4e09\u5927\u57fa\u672c\u516c\u7406
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