{"id":3651,"date":"2026-03-26T17:20:34","date_gmt":"2026-03-26T09:20:34","guid":{"rendered":"https:\/\/www.go2posts.com\/tw\/command-pattern-undoable-operations-guide\/"},"modified":"2026-03-26T17:20:34","modified_gmt":"2026-03-26T09:20:34","slug":"command-pattern-undoable-operations-guide","status":"publish","type":"post","link":"https:\/\/www.go2posts.com\/tw\/command-pattern-undoable-operations-guide\/","title":{"rendered":"OOAD\u6307\u5357\uff1a\u7528\u65bc\u53ef\u64a4\u92b7\u64cd\u4f5c\u7684\u547d\u4ee4\u6a21\u5f0f"},"content":{"rendered":"

\u5728\u2026\u2026\u7684\u9818\u57df\u4e2d\u7269\u4ef6\u5c0e\u5411\u5206\u6790\u8207\u8a2d\u8a08<\/strong>\uff0c\u7ba1\u7406\u4f7f\u7528\u8005\u52d5\u4f5c\u8207\u7cfb\u7d71\u72c0\u614b\u9700\u8981\u7a69\u5065\u7684\u67b6\u69cb\u65b9\u6cd5\u3002\u547d\u4ee4\u6a21\u5f0f\u4f5c\u70ba\u4e00\u7a2e\u57fa\u672c\u7684\u7d50\u69cb\u89e3\u6c7a\u65b9\u6848\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\u6642\u5c24\u70ba\u91cd\u8981\u3002\u6b64\u8a2d\u8a08\u6a21\u5f0f\u5c07\u8acb\u6c42\u5c01\u88dd\u70ba\u7269\u4ef6\uff0c\u4f7f\u60a8\u80fd\u4ee5\u4e0d\u540c\u8acb\u6c42\u53c3\u6578\u5316\u5ba2\u6236\u7aef\u3001\u6392\u968a\u8acb\u6c42\u6216\u8a18\u9304\u64cd\u4f5c\u3002\u672c\u6307\u5357\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528\u6b64\u6a21\u5f0f\u5be6\u4f5c\u64a4\u92b7\u529f\u80fd\uff0c\u800c\u7121\u9700\u4f9d\u8cf4\u7279\u5b9a\u7684\u8edf\u9ad4\u5de5\u5177\u3002<\/p>\n

\n
\"Hand-drawn<\/figure>\n<\/div>\n

\u7406\u89e3\u6838\u5fc3\u76ee\u6a19 \ud83c\udfaf<\/h2>\n

\u6b64\u67b6\u69cb\u6a21\u5f0f\u7684\u4e3b\u8981\u76ee\u6a19\u662f\u5c07\u767c\u8d77\u64cd\u4f5c\u7684\u7269\u4ef6\u8207\u57f7\u884c\u64cd\u4f5c\u7684\u7269\u4ef6\u5206\u96e2\u3002\u5728\u5efa\u69cb\u9700\u8981\u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\u7684\u61c9\u7528\u7a0b\u5f0f\u6642\uff0c\u8907\u96dc\u5ea6\u6703\u986f\u8457\u589e\u52a0\u3002\u4f7f\u7528\u8005\u671f\u671b\u80fd\u64a4\u92b7\u932f\u8aa4\u3002\u958b\u767c\u4eba\u54e1\u5fc5\u9808\u78ba\u4fdd\u7cfb\u7d71\u72c0\u614b\u5728\u64a4\u92b7\u5f8c\u4ecd\u4fdd\u6301\u4e00\u81f4\u3002\u547d\u4ee4\u6a21\u5f0f\u900f\u904e\u5c07\u52d5\u4f5c\u8996\u70ba\u4e00\u7b49\u7269\u4ef6\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\u3002<\/p>\n

\u60f3\u50cf\u4e00\u500b\u4f7f\u7528\u8005\u4fee\u6539\u6587\u4ef6\u7684\u60c5\u5883\u3002\u82e5\u767c\u751f\u932f\u8aa4\uff0c\u7cfb\u7d71\u5fc5\u9808\u56de\u5fa9\u5230\u5148\u524d\u72c0\u614b\u3002\u9019\u4e0d\u50c5\u50c5\u662f\u4e00\u6b21\u51fd\u5f0f\u547c\u53eb\uff0c\u800c\u662f\u4e00\u500b\u8acb\u6c42\u7269\u4ef6\u3002\u900f\u904e\u5c07\u300c\u5132\u5b58\u300d\u3001\u300c\u522a\u9664\u300d\u6216\u300c\u4fee\u6539\u300d\u7684\u908f\u8f2f\u5c01\u88dd\u6210\u547d\u4ee4\uff0c\u7cfb\u7d71\u4fbf\u7372\u5f97\u5f48\u6027\u3002\u5982\u6b64\u4e00\u4f86\uff0c\u4fbf\u80fd\u5806\u758a\u9019\u4e9b\u547d\u4ee4\u3001\u6aa2\u8996\u64cd\u4f5c\u6b77\u53f2\uff0c\u4e26\u500b\u5225\u64a4\u92b7\u3002<\/p>\n

    \n
  • \u5c01\u88dd\uff1a<\/strong> \u57f7\u884c\u52d5\u4f5c\u6240\u9700\u7684\u6240\u6709\u8cc7\u8a0a\u90fd\u5305\u542b\u5728\u547d\u4ee4\u7269\u4ef6\u4e2d\u3002<\/li>\n
  • \u89e3\u8026\uff1a<\/strong> \u547c\u53eb\u8005\u7121\u9700\u77e5\u9053\u63a5\u6536\u8005\u7684\u7d30\u7bc0\u3002<\/li>\n
  • \u53ef\u64f4\u5145\u6027\uff1a<\/strong> \u53ef\u5728\u4e0d\u4fee\u6539\u73fe\u6709\u5ba2\u6236\u7aef\u7a0b\u5f0f\u78bc\u7684\u60c5\u6cc1\u4e0b\u65b0\u589e\u547d\u4ee4\u3002<\/li>\n<\/ul>\n

    \u547d\u4ee4\u67b6\u69cb\u7684\u95dc\u9375\u5143\u4ef6 \u2699\ufe0f<\/h2>\n

    \u8981\u6709\u6548\u5be6\u4f5c\u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\uff0c\u5fc5\u9808\u7406\u89e3\u56db\u500b\u4e3b\u8981\u89d2\u8272\u3002\u6bcf\u500b\u89d2\u8272\u90fd\u6709\u5176\u7279\u5b9a\u8cac\u4efb\uff0c\u5171\u540c\u7dad\u6301\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n

    1. \u5ba2\u6236\u7aef \ud83e\uddd1\u200d\ud83d\udcbb<\/h3>\n

    \u5ba2\u6236\u7aef\u5efa\u7acb\u547d\u4ee4\u7269\u4ef6\u3002\u5b83\u77e5\u9053\u61c9\u5c07\u54ea\u500b\u63a5\u6536\u8005\u8207\u54ea\u500b\u547d\u4ee4\u95dc\u806f\uff0c\u4ee5\u53ca\u547d\u4ee4\u6240\u9700\u7684\u53c3\u6578\u3002\u5728\u5178\u578b\u7684\u4f5c\u696d\u6d41\u7a0b\u4e2d\uff0c\u5ba2\u6236\u7aef\u521d\u59cb\u5316\u5177\u9ad4\u547d\u4ee4\uff0c\u8a2d\u5b9a\u5fc5\u8981\u7684\u72c0\u614b\uff0c\u4e26\u5c07\u5176\u50b3\u905e\u7d66\u547c\u53eb\u8005\u3002<\/p>\n

    2. \u547d\u4ee4\u4ecb\u9762 \ud83d\udcdc<\/h3>\n

    \u9019\u662f\u62bd\u8c61\u5408\u7d04\u3002\u5b83\u5ba3\u544a\u4e86\u4e00\u500b\u57f7\u884c\u65b9\u6cd5\u3002\u4efb\u4f55\u5be6\u4f5c\u6b64\u4ecb\u9762\u7684\u547d\u4ee4\u985e\u5225\u90fd\u5fc5\u9808\u63d0\u4f9b\u57f7\u884c\u52d5\u4f5c\u7684\u908f\u8f2f\u3002\u70ba\u4e86\u652f\u63f4\u64a4\u92b7\u529f\u80fd\uff0c\u5177\u9ad4\u547d\u4ee4\u9084\u9700\u5be6\u4f5c\u53cd\u5411\u65b9\u6cd5\u3002\u9019\u7a2e\u5206\u96e2\u4f7f\u7cfb\u7d71\u80fd\u5340\u5206\u300c\u57f7\u884c\u300d\u8207\u300c\u64a4\u92b7\u300d\u3002<\/p>\n

    3. \u63a5\u6536\u8005 \ud83d\udda5\ufe0f<\/h3>\n

    \u63a5\u6536\u8005\u5305\u542b\u5be6\u969b\u7684\u5546\u696d\u908f\u8f2f\u3002\u5b83\u77e5\u9053\u5982\u4f55\u57f7\u884c\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5728\u6587\u5b57\u7de8\u8f2f\u60c5\u5883\u4e2d\uff0c\u63a5\u6536\u8005\u7ba1\u7406\u6587\u5b57\u7de9\u885d\u5340\u3002\u547d\u4ee4\u7269\u4ef6\u6703\u547c\u53eb\u63a5\u6536\u8005\u7684\u7684\u65b9\u6cd5\uff0c\u4f46\u4e0d\u9700\u77e5\u9053\u63a5\u6536\u8005\u5be6\u4f5c\u7d30\u7bc0\u3002<\/p>\n

    4. \u547c\u53eb\u8005 \ud83d\ude80<\/h3>\n

    \u547c\u53eb\u8005\u8ca0\u8cac\u89f8\u767c\u547d\u4ee4\u3002\u5b83\u5132\u5b58\u5c0d\u547d\u4ee4\u7269\u4ef6\u7684\u53c3\u8003\uff0c\u4e26\u547c\u53eb\u5176\u57f7\u884c\u65b9\u6cd5\u3002\u95dc\u9375\u7684\u662f\uff0c\u91dd\u5c0d\u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\uff0c\u547c\u53eb\u8005\u901a\u5e38\u6703\u7ba1\u7406\u4e00\u500b\u6b77\u53f2\u5806\u758a\u3002\u5b83\u4e0d\u77e5\u9053\u547d\u4ee4\u7684\u5177\u9ad4\u4f5c\u7528\uff1b\u5b83\u53ea\u77e5\u9053\u5982\u4f55\u57f7\u884c\u8a72\u547d\u4ee4\u3002<\/p>\n\n\n\n\n\n\n\n\n
    \u7d44\u4ef6<\/th>\n\u8cac\u4efb<\/th>\n\u7bc4\u4f8b\u60c5\u5883<\/th>\n<\/tr>\n<\/thead>\n
    \u5ba2\u6236\u7aef<\/td>\n\u5be6\u4f8b\u5316\u547d\u4ee4<\/td>\n\u4f7f\u7528\u8005\u9ede\u64ca\u6309\u9215<\/td>\n<\/tr>\n
    \u547d\u4ee4\u4ecb\u9762<\/td>\n\u5b9a\u7fa9 execute\/undo \u65b9\u6cd5<\/td>\n\u62bd\u8c61\u57fa\u985e<\/td>\n<\/tr>\n
    \u63a5\u6536\u8005<\/td>\n\u57f7\u884c\u5be6\u969b\u5de5\u4f5c<\/td>\n\u6587\u5b57\u7de9\u885d\u5340\u7ba1\u7406\u54e1<\/td>\n<\/tr>\n
    \u547c\u53eb\u8005<\/td>\n\u7ba1\u7406\u6b77\u53f2\u8a18\u9304\u8207\u57f7\u884c<\/td>\n\u61c9\u7528\u7a0b\u5f0f\u4e3b\u8ff4\u5708<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5be6\u4f5c\u6b77\u53f2\u5806\u758a \ud83d\udcda<\/h2>\n

    \u7684\u95dc\u9375\u5728\u65bc\u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\u547d\u4ee4\u6b77\u53f2\u7684\u7ba1\u7406\u3002\u7576\u4f7f\u7528\u8005\u57f7\u884c\u4e00\u500b\u52d5\u4f5c\u6642\uff0c\u7cfb\u7d71\u5fc5\u9808\u8a18\u9304\u8a72\u52d5\u4f5c\u3002\u7576\u8acb\u6c42\u64a4\u92b7\u6642\uff0c\u7cfb\u7d71\u5fc5\u9808\u53d6\u5f97\u6700\u8fd1\u7684\u52d5\u4f5c\uff0c\u5c07\u5176\u53cd\u8f49\uff0c\u7136\u5f8c\u5f9e\u6d3b\u8e8d\u7684\u6b77\u53f2\u8a18\u9304\u4e2d\u79fb\u9664\u3002<\/p>\n

    \u5806\u758a\u6a5f\u5236<\/h3>\n

    \u5806\u758a\u8cc7\u6599\u7d50\u69cb\u662f\u6b64\u76ee\u7684\u7684\u7406\u60f3\u9078\u64c7\u3002\u5b83\u9075\u5faa\u5f8c\u9032\u5148\u51fa\uff08LIFO\uff09\u539f\u5247\u3002\u6700\u8fd1\u57f7\u884c\u7684\u547d\u4ee4\u6703\u662f\u7b2c\u4e00\u500b\u88ab\u64a4\u92b7\u7684\u3002\u9019\u8207\u4f7f\u7528\u8005\u7684\u9810\u671f\u5b8c\u5168\u4e00\u81f4\u3002<\/p>\n

      \n
    • \u63a8\u5165\uff1a<\/strong> \u7576\u547d\u4ee4\u6210\u529f\u57f7\u884c\u6642\uff0c\u5b83\u6703\u88ab\u63a8\u5165\u5806\u758a\u3002<\/li>\n
    • \u5f39\u51fa\uff1a<\/strong> \u7576\u89f8\u767c\u64a4\u92b7\u6642\uff0c\u5806\u758a\u9802\u7aef\u7684\u547d\u4ee4\u6703\u88ab\u5f48\u51fa\u3002<\/li>\n
    • \u67e5\u770b\uff1a<\/strong> \u7cfb\u7d71\u53ef\u4ee5\u5728\u4e0d\u79fb\u9664\u7684\u60c5\u6cc1\u4e0b\u6aa2\u8996\u9802\u7aef\u547d\u4ee4\uff0c\u9019\u5c0d\u65bcUI\u6307\u793a\u5668\u975e\u5e38\u6709\u7528\u3002<\/li>\n<\/ul>\n

      \u8655\u7406\u591a\u5c64\u7d1a<\/h3>\n

      \u5be6\u4f5c\u55ae\u4e00\u5c64\u64a4\u92b7\u76f8\u7576\u7c21\u55ae\u3002\u5be6\u4f5c\u591a\u500b<\/em>\u591a\u7d1a\u53d6\u6d88\u9700\u8981\u4ed4\u7d30\u7684\u72c0\u614b\u7ba1\u7406\u3002\u547c\u53eb\u8005\u5fc5\u9808\u7dad\u6301\u4e00\u500b\u547d\u4ee4\u7269\u4ef6\u7684\u6301\u4e45\u5217\u8868\u3002\u7576\u4f7f\u7528\u8005\u57f7\u884c\u64cd\u4f5c\u6642\uff0c\u8a72\u5217\u8868\u6703\u589e\u9577\uff1b\u7576\u4f7f\u7528\u8005\u53d6\u6d88\u6642\uff0c\u5217\u8868\u6703\u7e2e\u5c0f\u3002<\/p>\n

      \u8003\u616e\u4ee5\u4e0b\u5de5\u4f5c\u6d41\u7a0b\uff1a<\/p>\n

        \n
      1. \u4f7f\u7528\u8005\u57f7\u884c\u52d5\u4f5c A\u3002\u547d\u4ee4 A \u88ab\u57f7\u884c\u3002\u547d\u4ee4 A \u88ab\u52a0\u5165\u6b77\u53f2\u8a18\u9304\u3002<\/li>\n
      2. \u4f7f\u7528\u8005\u57f7\u884c\u52d5\u4f5c B\u3002\u547d\u4ee4 B \u88ab\u57f7\u884c\u3002\u547d\u4ee4 B \u88ab\u52a0\u5165\u6b77\u53f2\u8a18\u9304\u3002<\/li>\n
      3. \u4f7f\u7528\u8005\u53d6\u6d88\u3002\u547d\u4ee4 B \u88ab\u5f48\u51fa\u3002\u547c\u53eb\u547d\u4ee4 B.reverse()\u3002<\/li>\n
      4. \u4f7f\u7528\u8005\u518d\u6b21\u53d6\u6d88\u3002\u547d\u4ee4 A \u88ab\u5f48\u51fa\u3002\u547c\u53eb\u547d\u4ee4 A.reverse()\u3002<\/li>\n<\/ol>\n

        \u6b64\u7d50\u69cb\u78ba\u4fdd\u7cfb\u7d71\u72c0\u614b\u80fd\u5b8c\u5168\u56de\u5fa9\u5230\u52d5\u4f5c\u5e8f\u5217\u958b\u59cb\u524d\u7684\u72c0\u614b\u3002<\/p>\n

        \u8a2d\u8a08\u53cd\u5411\u908f\u8f2f \ud83d\udd04<\/h2>\n

        \u8981\u4f7f\u4e00\u500b\u547d\u4ee4\u771f\u6b63\u53ef\u53d6\u6d88<\/strong>\uff0c\u5b83\u5fc5\u9808\u5177\u5099\u4e00\u7a2e\u6a5f\u5236\u4f86\u53cd\u8f49\u5176\u6548\u679c\u3002\u9019\u901a\u5e38\u662f\u8a2d\u8a08\u4e2d\u6700\u8907\u96dc\u7684\u90e8\u5206\u3002\u4e26\u975e\u6240\u6709\u64cd\u4f5c\u90fd\u80fd\u4ee5\u7c21\u55ae\u7684\u65b9\u5f0f\u53cd\u5411\u57f7\u884c\u3002<\/p>\n

        \u72c0\u614b\u4fdd\u7559<\/h3>\n

        \u67d0\u4e9b\u547d\u4ee4\u9700\u8981\u5728\u57f7\u884c\u524d\u4fdd\u5b58\u72c0\u614b\u3002\u5982\u679c\u547d\u4ee4\u4fee\u6539\u4e86\u4e00\u500b\u8907\u96dc\u7269\u4ef6\uff0c\u5247\u5fc5\u9808\u4fdd\u7559\u539f\u59cb\u72c0\u614b\uff0c\u4ee5\u4fbf\u5728\u53d6\u6d88\u968e\u6bb5\u6062\u5fa9\u3002\u9019\u901a\u5e38\u7531\u547d\u4ee4\u7269\u4ef6\u672c\u8eab\u8655\u7406\uff0c\u4fdd\u5b58\u57f7\u884c\u524d\u63a5\u6536\u8005\u72c0\u614b\u7684\u5feb\u7167\u3002<\/p>\n

        \u65b9\u6cd5\u7c3d\u540d\u8a2d\u8a08<\/h3>\n

        \u547d\u4ee4\u4ecb\u9762\u61c9\u660e\u78ba\u5b9a\u7fa9\u4e00\u500b\u53d6\u6d88\u65b9\u6cd5\u3002\u9019\u53ef\u78ba\u4fdd\u6240\u6709\u547d\u4ee4\u985e\u578b\u4e4b\u9593\u7684\u5408\u7d04\u4e00\u81f4\u6027\u3002<\/p>\n

          \n
        • execute()<\/code>\uff1a\u57f7\u884c\u6b63\u5411\u64cd\u4f5c\u3002<\/li>\n
        • undo()<\/code>\uff1a\u53cd\u8f49\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n

          \u900f\u904e\u5f37\u5236\u57f7\u884c\u6b64\u4ecb\u9762\uff0c\u547c\u53eb\u8005\u6703\u4ee5\u7d71\u4e00\u7684\u65b9\u5f0f\u8655\u7406\u6240\u6709\u547d\u4ee4\u3002\u5b83\u4e0d\u9700\u8981\u77e5\u9053\u547d\u4ee4\u662f\u300c\u5132\u5b58\u300d\u9084\u662f\u300c\u522a\u9664\u300d\u3002\u5b83\u53ea\u9700\u5c0d\u5806\u758a\u9802\u7aef\u7684\u4efb\u4f55\u547d\u4ee4\u547c\u53ebundo()<\/code>\u5373\u53ef\u3002<\/p>\n

          \u64f4\u5c55\u81f3\u91cd\u505a\u529f\u80fd \ud83d\udd04<\/h2>\n

          \u96d6\u7136\u53d6\u6d88\u529f\u80fd\u81f3\u95dc\u91cd\u8981\uff0c\u91cd\u505a<\/strong>\u91cd\u505a\u5247\u80fd\u63d0\u4f9b\u5b8c\u6574\u7684\u4f7f\u7528\u8005\u9ad4\u9a57\u3002\u91cd\u505a\u5141\u8a31\u4f7f\u7528\u8005\u91cd\u65b0\u57f7\u884c\u5148\u524d\u5df2\u53d6\u6d88\u7684\u547d\u4ee4\u3002\u9019\u9700\u8981\u7b2c\u4e8c\u500b\u5806\u758a\u6216\u5206\u96e2\u7684\u6b77\u53f2\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n

          \u91cd\u505a\u5806\u758a<\/h3>\n

          \u7576\u767c\u751f\u53d6\u6d88\u6642\uff0c\u547d\u4ee4\u7269\u4ef6\u4e0d\u6703\u88ab\u92b7\u6bc0\u3002\u76f8\u53cd\u5730\uff0c\u5b83\u6703\u5f9e\u53d6\u6d88\u5806\u758a\u79fb\u52d5\u5230\u91cd\u505a\u5806\u758a\u3002\u5982\u679c\u4f7f\u7528\u8005\u9078\u64c7\u91cd\u505a\uff0c\u547d\u4ee4\u6703\u5f9e\u91cd\u505a\u5806\u758a\u4e2d\u5f48\u51fa\u4e26\u91cd\u65b0\u57f7\u884c\u3002<\/p>\n

          \u5206\u652f\u908f\u8f2f<\/h3>\n

          \u7576\u5728\u64a4\u92b7\u5f8c\u57f7\u884c\u65b0\u64cd\u4f5c\u6642\uff0c\u6703\u51fa\u73fe\u4e00\u500b\u554f\u984c\u3002\u91cd\u505a\u6b77\u53f2\u8a18\u9304\u5c07\u8b8a\u5f97\u7121\u6548\u3002\u5982\u679c\u4f7f\u7528\u8005\u64a4\u92b7\u4e86\u4e09\u500b\u6b65\u9a5f\uff0c\u7136\u5f8c\u8f38\u5165\u4e00\u500b\u65b0\u5b57\u5143\uff0c\u5148\u524d\u7684\u300c\u91cd\u505a\u300d\u6b65\u9a5f\u5c07\u7121\u6cd5\u518d\u9054\u6210\u3002\u5728\u6b64\u60c5\u6cc1\u4e0b\uff0c\u5fc5\u9808\u6e05\u9664\u91cd\u505a\u5806\u758a\u3002<\/p>\n

            \n
          • \u60c5\u5883\uff1a<\/strong> \u4f7f\u7528\u8005\u7de8\u8f2f\u6587\u5b57 \u2794 \u64a4\u92b7\u8b8a\u66f4 \u2794 \u8f38\u5165\u65b0\u6587\u5b57\u3002<\/li>\n
          • \u7d50\u679c\uff1a<\/strong> \u4e4b\u524d\u7684\u64a4\u92b7\u6b65\u9a5f\u5c07\u907a\u5931\u3002<\/li>\n
          • \u5be6\u4f5c\uff1a<\/strong> \u5728\u57f7\u884c\u65b0\u547d\u4ee4\u6642\uff0c\u6e05\u9664\u91cd\u505a\u5806\u758a\u3002<\/li>\n<\/ul>\n

            \u5be6\u4f5c\u4e2d\u7684\u6311\u6230 \u26a0\ufe0f<\/h2>\n

            \u96d6\u7136\u547d\u4ee4\u6a21\u5f0f\u70ba\u53ef\u64a4\u92b7\u64cd\u4f5c<\/strong>\u63d0\u4f9b\u4e86\u6e05\u6670\u7684\u7d50\u69cb\uff0c\u4f46\u4ecd\u7136\u5b58\u5728\u82e5\u5e72\u6311\u6230\u3002\u958b\u767c\u4eba\u54e1\u5fc5\u9808\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\uff0c\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u6548\u80fd\u8207\u7a69\u5b9a\u6027\u3002<\/p>\n

            \u8a18\u61b6\u9ad4\u6d88\u8017<\/h3>\n

            \u6b77\u53f2\u5806\u758a\u4e2d\u5132\u5b58\u7684\u6bcf\u500b\u547d\u4ee4\u7269\u4ef6\u90fd\u6703\u6d88\u8017\u8a18\u61b6\u9ad4\u3002\u5728\u9577\u6642\u9593\u904b\u884c\u4e14\u64cd\u4f5c\u983b\u7e41\u7684\u6703\u8a71\u4e2d\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u986f\u8457\u7684\u8a18\u61b6\u9ad4\u4f7f\u7528\u91cf\u3002\u6bcf\u500b\u547d\u4ee4\u53ef\u80fd\u9700\u8981\u5132\u5b58\u5c0d\u63a5\u6536\u8005\u72c0\u614b\u7684\u53c3\u8003\u3002<\/p>\n

              \n
            • \u89e3\u6c7a\u65b9\u6848\uff1a<\/strong>\u9650\u5236\u5141\u8a31\u7684\u64a4\u92b7\u5c64\u7d1a\u6578\u91cf\u3002<\/li>\n
            • \u89e3\u6c7a\u65b9\u6848\uff1a<\/strong>\u5728\u53ef\u80fd\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528\u5f31\u53c3\u8003\u3002<\/li>\n
            • \u89e3\u6c7a\u65b9\u6848\uff1a<\/strong>\u91dd\u5c0d\u985e\u4f3c\u52d5\u4f5c\u5be6\u4f5c\u547d\u4ee4\u58d3\u7e2e\u3002<\/li>\n<\/ul>\n

              \u4e26\u767c\u554f\u984c<\/h3>\n

              \u5982\u679c\u61c9\u7528\u7a0b\u5f0f\u8655\u7406\u591a\u500b\u57f7\u884c\u7dd2\uff0c\u6b77\u53f2\u5806\u758a\u5fc5\u9808\u662f\u57f7\u884c\u7dd2\u5b89\u5168\u7684\u3002\u4f7f\u7528\u8005\u53ef\u80fd\u5728\u53e6\u4e00\u500b\u57f7\u884c\u7dd2\u57f7\u884c\u4e0d\u540c\u547d\u4ee4\u6642\u64a4\u92b7\u4e00\u500b\u52d5\u4f5c\u3002\u7af6\u722d\u689d\u4ef6\u53ef\u80fd\u5c0e\u81f4\u72c0\u614b\u640d\u58de\u3002<\/p>\n

                \n
              • \u540c\u6b65\uff1a<\/strong>\u5728\u63a8\u5165\u548c\u5f48\u51fa\u64cd\u4f5c\u671f\u9593\u9396\u5b9a\u6b77\u53f2\u5806\u758a\u3002<\/li>\n
              • \u6392\u968a\uff1a<\/strong>\u4f7f\u7528\u57f7\u884c\u7dd2\u5b89\u5168\u7684\u4f47\u5217\u4f86\u7ba1\u7406\u547d\u4ee4\u57f7\u884c\u9806\u5e8f\u3002<\/li>\n<\/ul>\n

                \u8907\u96dc\u7684\u53cd\u5411\u908f\u8f2f<\/h3>\n

                \u4e26\u975e\u6240\u6709\u52d5\u4f5c\u90fd\u6709\u7c21\u55ae\u7684\u53cd\u5411\u64cd\u4f5c\u3002\u522a\u9664\u6a94\u6848\u5f88\u5bb9\u6613\u64a4\u92b7\uff08\u6062\u5fa9\u6a94\u6848\uff09\u3002\u66f4\u65b0\u8cc7\u6599\u5eab\u8a18\u9304\u5247\u8f03\u56f0\u96e3\uff08\u9700\u8981\u4ea4\u6613\u65e5\u8a8c\uff09\u3002\u547d\u4ee4\u7269\u4ef6\u5fc5\u9808\u5c01\u88dd\u8db3\u5920\u7684\u8cc7\u8a0a\uff0c\u4ee5\u53cd\u5411\u57f7\u884c\u7279\u5b9a\u52d5\u4f5c\u3002<\/p>\n

                \u8a2d\u8a08\u7684\u6700\u4f73\u5be6\u52d9 \ud83d\udcdd<\/h2>\n

                \u70ba\u4e86\u7dad\u6301\u6e05\u6670\u7684\u67b6\u69cb\uff0c\u5728\u5be6\u4f5c\u547d\u4ee4\u6a21\u5f0f\u4ee5\u652f\u63f4\u53ef\u64a4\u92b7\u64cd\u4f5c<\/strong>.<\/p>\n

                  \n
                • \u4fdd\u6301\u547d\u4ee4\u7c21\u6f54\uff1a<\/strong> \u6bcf\u500b\u547d\u4ee4\u61c9\u4ee3\u8868\u55ae\u4e00\u908f\u8f2f\u64cd\u4f5c\u3002\u9664\u975e\u64cd\u4f5c\u662f\u539f\u5b50\u6027\u7684\uff0c\u5426\u5247\u907f\u514d\u5c07\u7121\u95dc\u7684\u64cd\u4f5c\u6279\u91cf\u5408\u4f75\u5230\u4e00\u500b\u547d\u4ee4\u4e2d\u3002<\/li>\n
                • \u8a18\u9304\u72c0\u614b\u8b8a\u66f4\uff1a<\/strong> \u6e05\u695a\u5b9a\u7fa9\u5728 execute()<\/code> \u4e2d\u767c\u751f\u7684\u72c0\u614b\u8b8a\u66f4\uff0c\u4ee5\u53ca undo()<\/code> \u6062\u5fa9\u7684\u5167\u5bb9\u3002\u9019\u6709\u52a9\u65bc\u672a\u4f86\u7684\u7dad\u8b77\u3002<\/li>\n
                • \u8a18\u9304\u932f\u8aa4\uff1a<\/strong> \u5982\u679c\u547d\u4ee4\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u5931\u6557\uff0c\u5c31\u4e0d\u61c9\u88ab\u52a0\u5165\u6b77\u53f2\u5806\u758a\u4e2d\u3002\u4f7f\u7528\u8005\u4e0d\u61c9\u80fd\u64a4\u92b7\u4e00\u500b\u5931\u6557\u7684\u64cd\u4f5c\u3002<\/li>\n
                • \u4ecb\u9762\u5206\u96e2\uff1a<\/strong> \u5982\u679c\u547d\u4ee4\u7121\u6cd5\u64a4\u92b7\uff0c\u5c31\u4e0d\u61c9\u5f37\u5236\u5176\u5be6\u73fe undo \u65b9\u6cd5\u3002\u61c9\u70ba\u53ef\u57f7\u884c\u8207\u53ef\u64a4\u92b7\u547d\u4ee4\u4f7f\u7528\u4e0d\u540c\u7684\u4ecb\u9762\u3002<\/li>\n<\/ul>\n

                  \u8207\u5176\u4ed6\u6a21\u5f0f\u7684\u6bd4\u8f03 \ud83d\udd0d<\/h2>\n

                  \u96d6\u7136\u547d\u4ee4\u6a21\u5f0f\u975e\u5e38\u9069\u5408\u7528\u65bc \u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\uff0c\u4f46\u5b83\u7d93\u5e38\u8207\u5099\u5fd8\u9304\u6a21\u5f0f\u9032\u884c\u6bd4\u8f03\u3002\u7406\u89e3\u5169\u8005\u7684\u5dee\u7570\u6709\u52a9\u65bc\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u3002<\/p>\n\n\n\n\n\n\n\n\n
                  \u529f\u80fd<\/th>\n\u547d\u4ee4\u6a21\u5f0f<\/th>\n\u5099\u5fd8\u9304\u6a21\u5f0f<\/th>\n<\/tr>\n<\/thead>\n
                  \u91cd\u9ede<\/td>\n\u52d5\u4f5c\u5c01\u88dd<\/td>\n\u72c0\u614b\u5c01\u88dd<\/td>\n<\/tr>\n
                  \u64a4\u92b7\u6a5f\u5236<\/td>\n\u53cd\u8f49\u908f\u8f2f<\/td>\n\u6062\u5fa9\u5148\u524d\u72c0\u614b<\/td>\n<\/tr>\n
                  \u6548\u80fd<\/td>\n\u82e5\u908f\u8f2f\u7c21\u55ae\uff0c\u8a18\u61b6\u9ad4\u4f7f\u7528\u8f03\u4f4e<\/td>\n\u72c0\u614b\u5feb\u7167\u9700\u8981\u8f03\u9ad8\u8a18\u61b6\u9ad4<\/td>\n<\/tr>\n
                  \u8907\u96dc\u5ea6<\/td>\n\u9700\u8981\u53cd\u5411\u908f\u8f2f<\/td>\n\u9700\u8981\u5feb\u7167\u908f\u8f2f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u7576\u64cd\u4f5c\u8f03\u70ba\u8907\u96dc\u4e14\u53cd\u5411\u908f\u8f2f\u660e\u78ba\u6642\uff0c\u5efa\u8b70\u4f7f\u7528\u547d\u4ee4\u6a21\u5f0f\u3002\u7576\u72c0\u614b\u904e\u65bc\u8907\u96dc\u800c\u7121\u6cd5\u908f\u8f2f\u4e0a\u9006\u8f49\u6642\uff08\u4f8b\u5982\u4fdd\u5b58\u6574\u500b\u8996\u7a97\u7684\u72c0\u614b\uff09\uff0c\u5247\u5099\u5fd8\u9304\u6a21\u5f0f\u66f4\u70ba\u5408\u9069\u3002<\/p>\n

                  \u73fe\u5be6\u4e16\u754c\u61c9\u7528\u5834\u666f \ud83c\udf0d<\/h2>\n

                  \u6b64\u6a21\u5f0f\u4e0d\u50c5\u9650\u65bc\u6587\u5b57\u7de8\u8f2f\u5668\uff0c\u9084\u9069\u7528\u65bc\u5404\u7a2e\u9700\u8981\u72c0\u614b\u7ba1\u7406\u7684\u9818\u57df\u3002<\/p>\n

                  \u91d1\u878d\u7cfb\u7d71<\/h3>\n

                  \u5728\u9280\u884c\u8edf\u9ad4\u4e2d\uff0c\u4ea4\u6613\u5fc5\u9808\u53ef\u9006\u3002\u82e5\u767c\u73fe\u932f\u8aa4\uff0c\u63d0\u6b3e\u547d\u4ee4\u53ef\u88ab\u64a4\u92b7\u3002\u547d\u4ee4\u6a21\u5f0f\u78ba\u4fdd\u5e33\u672c\u59cb\u7d42\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n

                  \u5716\u5f62\u8a2d\u8a08\u5de5\u5177<\/h3>\n

                  \u7e6a\u88fd\u5f62\u72c0\u6642\uff0c\u4f7f\u7528\u8005\u671f\u671b\u80fd\u79fb\u52d5\u3001\u8abf\u6574\u5927\u5c0f\u548c\u522a\u9664\u7269\u4ef6\u3002\u6bcf\u6b21\u5de5\u5177\u4e92\u52d5\u90fd\u8f49\u5316\u70ba\u4e00\u500b\u547d\u4ee4\u3002\u6b77\u53f2\u5806\u758a\u53ef\u652f\u63f4\u8907\u96dc\u7684\u7de8\u8f2f\u6703\u8a71\uff0c\u4e14\u4e0d\u6703\u9020\u6210\u8cc7\u6599\u907a\u5931\u3002<\/p>\n

                  \u8a2d\u5b9a\u7ba1\u7406<\/h3>\n

                  \u7cfb\u7d71\u7ba1\u7406\u54e1\u7d93\u5e38\u8b8a\u66f4\u8a2d\u5b9a\u3002\u82e5\u8b8a\u66f4\u5c0e\u81f4\u7cfb\u7d71\u6545\u969c\uff0c\u80fd\u5920\u56de\u5fa9\u5230\u5148\u524d\u8a2d\u5b9a\u81f3\u95dc\u91cd\u8981\u3002\u547d\u4ee4\u5c01\u88dd\u4e86\u8a2d\u5b9a\u8b8a\u66f4\u3002<\/p>\n

                  \u7d50\u69cb\u4e0a\u7684\u6700\u5f8c\u60f3\u6cd5 \ud83c\udfd7\ufe0f<\/h2>\n

                  \u5be6\u4f5c\u53ef\u64a4\u92b7\u7684\u64cd\u4f5c<\/strong>\u4f7f\u7528\u547d\u4ee4\u6a21\u5f0f\u5be6\u4f5c\u53ef\u64a4\u92b7\u64cd\u4f5c\u9700\u8981\u4ed4\u7d30\u898f\u5283\u3002\u9019\u5c07\u91cd\u9ede\u5f9e\u76f4\u63a5\u51fd\u6578\u547c\u53eb\u8f49\u79fb\u5230\u7269\u4ef6\u5c0e\u5411\u7684\u5c01\u88dd\u3002\u547c\u53eb\u8005\u8ca0\u8cac\u7ba1\u7406\u6d41\u7a0b\uff0c\u800c\u547d\u4ee4\u7269\u4ef6\u5247\u8ca0\u8cac\u7ba1\u7406\u908f\u8f2f\u3002<\/p>\n

                  \u900f\u904e\u9075\u5faa\u95dc\u6ce8\u9ede\u5206\u96e2\u7684\u539f\u5247\uff0c\u958b\u767c\u8005\u80fd\u5efa\u7acb\u7a69\u5065\u4e14\u4f7f\u7528\u8005\u53cb\u5584\u7684\u7cfb\u7d71\u3002\u6b77\u53f2\u5806\u758a\u6210\u70ba\u4f7f\u7528\u8005\u9ad4\u9a57\u7684\u9aa8\u5e79\uff0c\u63d0\u4f9b\u5b89\u5168\u8207\u5f48\u6027\u3002\u96d6\u7136\u8a18\u61b6\u9ad4\u8207\u4e26\u884c\u8655\u7406\u65b9\u9762\u5b58\u5728\u6311\u6230\uff0c\u4f46\u900f\u904e\u9069\u7576\u7684\u67b6\u69cb\u6c7a\u7b56\uff0c\u9019\u4e9b\u554f\u984c\u7686\u53ef\u7ba1\u7406\u3002<\/p>\n

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                  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