{"id":997581,"date":"2024-12-27T09:25:26","date_gmt":"2024-12-27T01:25:26","guid":{"rendered":""},"modified":"2024-12-27T09:25:31","modified_gmt":"2024-12-27T01:25:31","slug":"python%e5%a6%82%e4%bd%95%e4%bf%ae%e6%94%b9%e5%ad%97%e5%85%b8%e9%94%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/997581.html","title":{"rendered":"python\u5982\u4f55\u4fee\u6539\u5b57\u5178\u952e"},"content":{"rendered":"

\"python\u5982\u4f55\u4fee\u6539\u5b57\u5178\u952e\"<\/p>\n

\u4e00\u3001\u76f4\u63a5\u4fee\u6539\u5b57\u5178\u952e\u7684\u65b9\u6cd5<\/p>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u5b57\u5178\u662f\u4e00\u79cd\u975e\u5e38\u7075\u6d3b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f46\u5b83\u7684\u952e\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u56e0\u6b64\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u5b57\u5178\u7684\u952e\u3002\u7136\u800c\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u6280\u5de7\u6765\u5b9e\u73b0\u5b57\u5178\u952e\u7684\u4fee\u6539\u3002\u4e00\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u952e\u503c\u5bf9\u5e76\u5220\u9664\u65e7\u7684\u952e<\/strong>\u3001\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u5178<\/strong>\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u8fdb\u884c\u952e\u7684\u66ff\u6362<\/strong>\u3002\u8fd9\u4e09\u79cd\u65b9\u6cd5\u5404\u6709\u4f18\u52a3\uff0c\u5177\u4f53\u9009\u62e9\u53ef\u4ee5\u6839\u636e\u573a\u666f\u548c\u9700\u6c42\u6765\u5b9a\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\uff1a\u521b\u5efa\u65b0\u7684\u952e\u503c\u5bf9\u5e76\u5220\u9664\u65e7\u952e\u3002<\/p>\n<\/p>\n

\u521b\u5efa\u65b0\u7684\u952e\u503c\u5bf9\u5e76\u5220\u9664\u65e7\u952e<\/strong>\u662f\u4e00\u79cd\u7b80\u5355\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u4e3a\u5b57\u5178\u5206\u914d\u65b0\u7684\u952e\u503c\u5bf9\uff0c\u7136\u540e\u5220\u9664\u65e7\u7684\u952e\u6765\u5b9e\u73b0\u3002\u5047\u8bbe\u6709\u4e00\u4e2a\u5b57\u5178my_dict<\/code>\uff0c\u6211\u4eec\u60f3\u8981\u4fee\u6539\u5176\u4e2d\u7684\u4e00\u4e2a\u952e\u3002\u9996\u5148\uff0c\u6211\u4eec\u5c06\u65e7\u952e\u7684\u503c\u590d\u5236\u5230\u65b0\u952e\u4e0a\uff0c\u7136\u540e\u5220\u9664\u65e7\u952e\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u7b80\u5355\u6613\u61c2\uff0c\u4ee3\u7801\u4e5f\u5f88\u6e05\u6670\uff0c\u9002\u7528\u4e8e\u952e\u6570\u91cf\u4e0d\u591a\u4e14\u4fee\u6539\u6b21\u6570\u8f83\u5c11\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n

my_dict = {'old_key': 'value'}<\/p>\n
my_dict['new_key'] = my_dict.pop('old_key')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\u521b\u5efa\u65b0\u5b57\u5178<\/p>\n<\/p>\n
\u53e6\u4e00\u79cd\u4fee\u6539\u5b57\u5178\u952e\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u5178<\/strong>\u3002\u8fd9\u79cd\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u9700\u8981\u5bf9\u5b57\u5178\u4e2d\u7684\u591a\u4e2a\u952e\u8fdb\u884c\u4fee\u6539\u6216\u9700\u8981\u5bf9\u952e\u8fdb\u884c\u6279\u91cf\u5904\u7406\u7684\u573a\u666f\u3002\u5b57\u5178\u63a8\u5bfc\u5f0f\u4e0d\u4ec5\u53ef\u4ee5\u4fee\u6539\u952e\uff0c\u8fd8\u53ef\u4ee5\u540c\u65f6\u4fee\u6539\u503c\uff0c\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n
\u5f53\u9700\u8981\u5bf9\u4e00\u4e2a\u5b57\u5178\u7684\u952e\u8fdb\u884c\u6279\u91cf\u4fee\u6539\u65f6\uff0c\u5b57\u5178\u63a8\u5bfc\u5f0f\u663e\u5f97\u5c24\u4e3a\u65b9\u4fbf\u3002\u901a\u8fc7\u5b57\u5178\u63a8\u5bfc\u5f0f\uff0c\u53ef\u4ee5\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u5178\uff0c\u5e76\u5bf9\u5176\u4e2d\u7684\u952e\u8fdb\u884c\u4fee\u6539\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5b57\u5178my_dict<\/code>\uff0c\u5176\u4e2d\u7684\u6240\u6709\u952e\u90fd\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a\u524d\u7f00\u3002\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff1a<\/p>\n<\/p>\n
my_dict = {'key1': 1, 'key2': 2, 'key3': 3}<\/p>\n
new_dict = {f'new_{k}': v for k, v in my_dict.items()}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b57\u5178\u63a8\u5bfc\u5f0f\u7684\u4f7f\u7528\u4f7f\u5f97\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\uff0c\u5e76\u4e14\u5b83\u7684\u6267\u884c\u6548\u7387\u4e5f\u8f83\u9ad8\uff0c\u56e0\u4e3a\u5b83\u662f\u5728\u5185\u5b58\u4e2d\u76f4\u63a5\u521b\u5efa\u65b0\u7684\u5b57\u5178\uff0c\u800c\u4e0d\u662f\u9010\u4e2a\u4fee\u6539\u952e\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u8fdb\u884c\u952e\u7684\u66ff\u6362<\/p>\n<\/p>\n
\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\uff0cPython\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5185\u7f6e\u51fd\u6570\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u5b57\u5178\u952e\u7684\u4fee\u6539\u3002update()<\/code>\u65b9\u6cd5\u662f\u4e00\u4e2a\u5e38\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u6279\u91cf\u66f4\u65b0\u5b57\u5178\u7684\u952e\u548c\u503c<\/strong>\u3002\u901a\u8fc7update()<\/code>\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4e0d\u521b\u5efa\u65b0\u5b57\u5178\u7684\u60c5\u51b5\u4e0b\uff0c\u5bf9\u73b0\u6709\u5b57\u5178\u8fdb\u884c\u952e\u503c\u5bf9\u7684\u66f4\u65b0\u3002<\/p>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u76f4\u63a5\u4fee\u6539\u5b57\u5178\u53ef\u80fd\u4e0d\u662f\u6700\u4f73\u9009\u62e9\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u4fdd\u8bc1\u6570\u636e\u5b8c\u6574\u6027\u6216\u9700\u8981\u9891\u7e41\u4fee\u6539\u7684\u573a\u666f\u4e0b\u3002\u6b64\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528Python\u7684\u5185\u7f6e\u51fd\u6570map()<\/code>\u6216zip()<\/code>\u6765\u5b9e\u73b0\u952e\u7684\u66ff\u6362\u3002\u867d\u7136\u8fd9\u4e9b\u51fd\u6570\u5e76\u4e0d\u662f\u4e13\u95e8\u7528\u4e8e\u5b57\u5178\u7684\uff0c\u4f46\u901a\u8fc7\u5de7\u5999\u7684\u7ec4\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u8fbe\u5230\u4fee\u6539\u5b57\u5178\u952e\u7684\u76ee\u7684\u3002<\/p>\n<\/p>\n
\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528map()<\/code>\u51fd\u6570\u6765\u5bf9\u5b57\u5178\u952e\u8fdb\u884c\u6279\u91cf\u4fee\u6539\u3002\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06\u5b57\u5178my_dict<\/code>\u7684\u952e\u8f6c\u6362\u4e3a\u5927\u5199\uff1a<\/p>\n<\/p>\n
my_dict = {'key1': 1, 'key2': 2}<\/p>\n
new_dict = dict(map(lambda item: (item[0].upper(), item[1]), my_dict.items()))<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5b57\u5178\u952e\u4fee\u6539\u7684\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n
\u5728\u4fee\u6539\u5b57\u5178\u952e\u65f6\uff0c\u6709\u4e00\u4e9b\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u4e8b\u9879\u3002\u9996\u5148\uff0c\u5b57\u5178\u7684\u952e\u5fc5\u987b\u662f\u4e0d\u53ef\u53d8\u7684\u7c7b\u578b<\/strong>\uff0c\u4f8b\u5982\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u6216\u5143\u7ec4\u3002\u56e0\u6b64\uff0c\u5728\u9009\u62e9\u65b0\u7684\u952e\u65f6\uff0c\u5fc5\u987b\u786e\u4fdd\u5b83\u4eec\u662f\u4e0d\u53ef\u53d8\u7684\u3002\u5176\u6b21\uff0c\u5b57\u5178\u7684\u952e\u662f\u552f\u4e00\u7684<\/strong>\uff0c\u5728\u4fee\u6539\u952e\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u65b0\u7684\u952e\u4e0d\u4f1a\u4e0e\u73b0\u6709\u7684\u952e\u4ea7\u751f\u51b2\u7a81\uff0c\u5426\u5219\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u3002<\/p>\n<\/p>\n
\u6b64\u5916\uff0c\u5b57\u5178\u662f\u4e00\u79cd\u65e0\u5e8f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u8fd9\u610f\u5473\u7740\u4fee\u6539\u952e\u7684\u987a\u5e8f\u4e0d\u4f1a\u5f71\u54cd\u5b57\u5178\u7684\u987a\u5e8f\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u952e\u7684\u987a\u5e8f\u53ef\u80fd\u5f88\u91cd\u8981\uff0c\u6b64\u65f6\u9700\u8981\u7279\u522b\u5c0f\u5fc3\u3002\u5728Python 3.7\u53ca\u4ee5\u540e\u7684\u7248\u672c\u4e2d\uff0c\u5b57\u5178\u4fdd\u6301\u63d2\u5165\u987a\u5e8f\uff0c\u4f46\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u53ef\u4ee5\u4f9d\u8d56\u8fd9\u79cd\u987a\u5e8f\u6765\u8fdb\u884c\u903b\u8f91\u5224\u65ad\u3002<\/p>\n<\/p>\n
\u5728\u5b9e\u9645\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u4fee\u6539\u5b57\u5178\u952e\u7684\u9700\u6c42\u53ef\u80fd\u4f1a\u975e\u5e38\u591a\u6837\u5316\u3002\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u6b63\u786e\u6027\u548c\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u975e\u5e38\u91cd\u8981\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u521b\u5efa\u65b0\u7684\u952e\u503c\u5bf9\u5e76\u5220\u9664\u65e7\u952e\u662f\u6700\u7b80\u5355\u4e5f\u662f\u6700\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u4f46\u5728\u5904\u7406\u590d\u6742\u7684\u4fee\u6539\u9700\u6c42\u65f6\uff0c\u5b57\u5178\u63a8\u5bfc\u5f0f\u6216\u5185\u7f6e\u51fd\u6570\u53ef\u80fd\u4f1a\u63d0\u4f9b\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5b57\u5178\u952e\u4fee\u6539\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f<\/p>\n<\/p>\n
\u4fee\u6539\u5b57\u5178\u952e\u7684\u9700\u6c42\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\u5e76\u4e0d\u5c11\u89c1\uff0c\u7279\u522b\u662f\u5728\u6570\u636e\u5904\u7406\u548c\u8f6c\u6362\u7684\u573a\u666f\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n<\/p>\n
    \n
  1. \n
    \u6570\u636e\u6e05\u6d17\u548c\u8f6c\u6362<\/strong>\uff1a\u5728\u5904\u7406\u6765\u81ea\u4e0d\u540c\u6570\u636e\u6e90\u7684\u6570\u636e\u65f6\uff0c\u5b57\u6bb5\u540d\u79f0\u53ef\u80fd\u4e0d\u4e00\u81f4\u3002\u901a\u8fc7\u4fee\u6539\u5b57\u5178\u952e\uff0c\u53ef\u4ee5\u7edf\u4e00\u5b57\u6bb5\u540d\u79f0\uff0c\u65b9\u4fbf\u540e\u7eed\u7684\u6570\u636e\u5904\u7406\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    \u52a8\u6001\u751f\u6210\u6570\u636e\u7ed3\u6784<\/strong>\uff1a\u5728\u67d0\u4e9b\u52a8\u6001\u751f\u6210\u7684\u6570\u636e\u7ed3\u6784\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u6839\u636e\u7279\u5b9a\u89c4\u5219\u4fee\u6539\u952e\u540d\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7ed3\u6784\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n<\/li>\n
  3. \n
    \u56fd\u9645\u5316\u548c\u672c\u5730\u5316<\/strong>\uff1a\u5728\u591a\u8bed\u8a00\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u6839\u636e\u7528\u6237\u7684\u8bed\u8a00\u504f\u597d\u4fee\u6539\u5b57\u5178\u4e2d\u7684\u952e\uff0c\u4ee5\u663e\u793a\u672c\u5730\u5316\u7684\u5b57\u6bb5\u540d\u79f0\u3002<\/p>\n<\/p>\n<\/li>\n
  4. \n
    \u7248\u672c\u517c\u5bb9\u6027<\/strong>\uff1a\u5728\u8f6f\u4ef6\u5347\u7ea7\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u5bf9\u65e7\u7248\u672c\u7684\u6570\u636e\u7ed3\u6784\u8fdb\u884c\u4fee\u6539\uff0c\u4ee5\u517c\u5bb9\u65b0\u7248\u672c\u7684\u9700\u6c42\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u5728\u8fd9\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u5b57\u5178\u952e\u4fee\u6539\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u5904\u7406\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n
    \u516d\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u8fdb\u884c\u5b57\u5178\u952e\u7684\u4fee\u6539<\/p>\n<\/p>\n
    \u5728\u67d0\u4e9b\u590d\u6742\u7684\u5e94\u7528\u573a\u666f\u4e2d\uff0cPython\u7684\u5185\u7f6e\u529f\u80fd\u53ef\u80fd\u663e\u5f97\u4e0d\u591f\u5f3a\u5927\uff0c\u6b64\u65f6\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u6765\u5b9e\u73b0\u5b57\u5178\u952e\u7684\u4fee\u6539\u3002\u4f8b\u5982\uff0cpandas<\/code>\u5e93\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u6570\u636e\u5206\u6790\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591a\u65b9\u4fbf\u7684\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u6570\u636e\u6e05\u6d17\u548c\u8f6c\u6362\u3002<\/p>\n<\/p>\n
    pandas<\/code>\u5e93\u4e2d\u7684rename()<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u4fee\u6539DataFrame\u7684\u884c\u6216\u5217\u540d\u79f0\uff0c\u8fd9\u5bf9\u4e8e\u5904\u7406\u8868\u683c\u6570\u636e\u975e\u5e38\u6709\u7528\u3002\u901a\u8fc7\u5c06\u5b57\u5178\u8f6c\u6362\u4e3aDataFrame\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528rename()<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\u5b57\u5178\u952e\u7684\u4fee\u6539\u3002<\/p>\n<\/p>\n
    import pandas as pd<\/p>\n
    my_dict = {'key1': 1, 'key2': 2}<\/p>\n
    df = pd.DataFrame([my_dict])<\/p>\n
    df.rename(columns={'key1': 'new_key1', 'key2': 'new_key2'}, inplace=True)<\/p>\n
    new_dict = df.to_dict('records')[0]<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u529f\u80fd\u5f3a\u5927\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u6570\u636e\u5904\u7406\u9700\u6c42\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u6279\u91cf\u5904\u7406\u6216\u8f6c\u6362\u65f6\u3002\u7136\u800c\uff0c\u7531\u4e8epandas<\/code>\u5e93\u7684\u5f15\u5165\uff0c\u4f1a\u589e\u52a0\u7a0b\u5e8f\u7684\u4f9d\u8d56\u6027\u548c\u590d\u6742\u6027\uff0c\u56e0\u6b64\u5728\u9009\u62e9\u8fd9\u79cd\u65b9\u6cd5\u65f6\u9700\u8981\u6743\u8861\u5229\u5f0a\u3002<\/p>\n<\/p>\n
    \u4e03\u3001\u603b\u7ed3<\/p>\n<\/p>\n
    \u5728Python\u4e2d\uff0c\u867d\u7136\u5b57\u5178\u7684\u952e\u662f\u4e0d\u53ef\u76f4\u63a5\u4fee\u6539\u7684\uff0c\u4f46\u901a\u8fc7\u4e00\u4e9b\u6280\u5de7\u548c\u65b9\u6cd5\uff0c\u4ecd\u7136\u53ef\u4ee5\u5b9e\u73b0\u5b57\u5178\u952e\u7684\u4fee\u6539\u3002\u521b\u5efa\u65b0\u7684\u952e\u503c\u5bf9\u5e76\u5220\u9664\u65e7\u952e\u662f\u6700\u7b80\u5355\u7684\u65b9\u6cd5<\/strong>\uff0c\u9002\u5408\u5927\u591a\u6570\u573a\u666f\uff1b\u5b57\u5178\u63a8\u5bfc\u5f0f\u548c\u5185\u7f6e\u51fd\u6570\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027<\/strong>\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u4fee\u6539\u9700\u6c42\uff1b\u800c\u7b2c\u4e09\u65b9\u5e93\u5982pandas<\/code>\u5219\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u8868\u683c\u6570\u636e<\/strong>\u3002\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u65e0\u8bba\u91c7\u7528\u54ea\u79cd\u65b9\u6cd5\uff0c\u5728\u4fee\u6539\u5b57\u5178\u952e\u65f6\u90fd\u9700\u8981\u6ce8\u610f\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff0c\u4ee5\u786e\u4fdd\u7a0b\u5e8f\u7684\u6b63\u786e\u8fd0\u884c\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u5728Python\u4e2d\u5b89\u5168\u5730\u4fee\u6539\u5b57\u5178\u7684\u952e\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u76f4\u63a5\u4fee\u6539\u5b57\u5178\u7684\u952e\u662f\u4e0d\u5141\u8bb8\u7684\uff0c\u56e0\u4e3a\u5b57\u5178\u7684\u952e\u5fc5\u987b\u662f\u4e0d\u53ef\u53d8\u7684\u5bf9\u8c61\u3002\u8981\u201c\u4fee\u6539\u201d\u952e\uff0c\u901a\u5e38\u7684\u505a\u6cd5\u662f\u6dfb\u52a0\u4e00\u4e2a\u65b0\u952e\u5e76\u5c06\u65e7\u952e\u7684\u503c\u590d\u5236\u8fc7\u53bb\uff0c\u6700\u540e\u5220\u9664\u65e7\u952e\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n
    my_dict = {'old_key': 'value'}\nmy_dict['new_key'] = my_dict.pop('old_key')\n<\/code><\/pre>\n
    \u8fd9\u6837\u5c31\u5c06old_key<\/code>\u4fee\u6539\u4e3a\u4e86new_key<\/code>\uff0c\u540c\u65f6\u4fdd\u7559\u4e86\u76f8\u5e94\u7684\u503c\u3002<\/p>\n
    \u5728Python\u4e2d\uff0c\u662f\u5426\u53ef\u4ee5\u6279\u91cf\u4fee\u6539\u5b57\u5178\u7684\u591a\u4e2a\u952e\uff1f<\/strong>
    \u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u904d\u5386\u5b57\u5178\u7684\u952e\u6765\u6279\u91cf\u4fee\u6539\u591a\u4e2a\u952e\u3002\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u5178\u6765\u5b58\u50a8\u4fee\u6539\u540e\u7684\u952e\u53ca\u5176\u5bf9\u5e94\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n
    old_keys = ['old_key1', 'old_key2']\nnew_keys = ['new_key1', 'new_key2']\nmy_dict = {'old_key1': 'value1', 'old_key2': 'value2'}\n\nfor old_key, new_key in zip(old_keys, new_keys):\n    my_dict[new_key] = my_dict.pop(old_key)\n<\/code><\/pre>\n
    \u8fd9\u6837\u53ef\u4ee5\u6709\u6548\u5730\u5c06\u591a\u4e2a\u65e7\u952e\u66ff\u6362\u4e3a\u65b0\u952e\u3002<\/p>\n
    \u4f7f\u7528Python\u7684\u5b57\u5178\u63a8\u5bfc\u5f0f\u80fd\u5426\u4fee\u6539\u5b57\u5178\u952e\uff1f<\/strong>
    \u5b57\u5178\u63a8\u5bfc\u5f0f\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u6548\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u521b\u5efa\u65b0\u5b57\u5178\u5e76\u5728\u6b64\u8fc7\u7a0b\u4e2d\u4fee\u6539\u952e\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u4fee\u6539\u5b57\u5178\u7684\u952e\uff1a<\/p>\n
    my_dict = {'key1': 'value1', 'key2': 'value2'}\nnew_dict = {f'new_{key}': value for key, value in my_dict.items()}\n<\/code><\/pre>\n
    \u6b64\u4ee3\u7801\u4f1a\u5c06key1<\/code>\u548ckey2<\/code>\u5206\u522b\u4fee\u6539\u4e3anew_key1<\/code>\u548cnew_key2<\/code>\uff0c\u5e76\u4fdd\u7559\u539f\u6709\u7684\u503c\u3002\u8fd9\u6837\u7684\u65b9\u6cd5\u4e0d\u4ec5\u7b80\u6d01\u800c\u4e14\u9ad8\u6548\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4e00\u3001\u76f4\u63a5\u4fee\u6539\u5b57\u5178\u952e\u7684\u65b9\u6cd5 \u5728Python\u4e2d\uff0c\u5b57\u5178\u662f\u4e00\u79cd\u975e\u5e38\u7075\u6d3b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f46\u5b83\u7684\u952e\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u56e0\u6b64\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539 […]","protected":false},"author":3,"featured_media":997602,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/997581"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=997581"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/997581\/revisions"}],"predecessor-version":[{"id":997605,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/997581\/revisions\/997605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/997602"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=997581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=997581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=997581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}