{"id":1000991,"date":"2024-12-27T09:55:51","date_gmt":"2024-12-27T01:55:51","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1000991.html"},"modified":"2024-12-27T09:56:01","modified_gmt":"2024-12-27T01:56:01","slug":"python%e5%a6%82%e4%bd%95%e5%88%a0%e9%99%a4%e6%89%80%e6%9c%89%e5%8f%98%e9%87%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1000991.html","title":{"rendered":"python\u5982\u4f55\u5220\u9664\u6240\u6709\u53d8\u91cf"},"content":{"rendered":"

\"python\u5982\u4f55\u5220\u9664\u6240\u6709\u53d8\u91cf\"<\/p>\n

\u5728Python\u4e2d\u5220\u9664\u6240\u6709\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u91cd\u542f\u89e3\u91ca\u5668\u3001\u4f7f\u7528globals()<\/code>\u548cdel<\/code>\u547d\u4ee4\u3002\u91cd\u542f\u89e3\u91ca\u5668\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u4f46\u53ef\u80fd\u4e0d\u65b9\u4fbf\uff0c\u4f7f\u7528globals()<\/code>\u548cdel<\/code>\u547d\u4ee4\u53ef\u4ee5\u624b\u52a8\u5220\u9664\u53d8\u91cf\uff0c\u786e\u4fdd\u6ca1\u6709\u8bef\u5220\u91cd\u8981\u7684\u7cfb\u7edf\u53d8\u91cf\u3002<\/strong><\/p>\n<\/p>\n

\u91cd\u542f\u89e3\u91ca\u5668\u662f\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5728\u5927\u591a\u6570\u5f00\u53d1\u73af\u5883\u4e2d\uff0c\u91cd\u542fPython\u89e3\u91ca\u5668\u4f1a\u81ea\u52a8\u6e05\u9664\u6240\u6709\u5185\u5b58\u4e2d\u7684\u53d8\u91cf\u3002\u5c3d\u7ba1\u8fd9\u662f\u4e00\u79cd\u975e\u5e38\u6709\u6548\u7684\u65b9\u5f0f\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u91cd\u65b0\u542f\u52a8\u89e3\u91ca\u5668\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e22\u5931\u5c1a\u672a\u4fdd\u5b58\u7684\u5de5\u4f5c\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u624b\u52a8\u5220\u9664\u53d8\u91cf\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<\/p>\n

\u4f7f\u7528globals()<\/code>\u548cdel<\/code>\u547d\u4ee4\u5219\u662f\u4e00\u79cd\u66f4\u4e3a\u7ec6\u81f4\u7684\u65b9\u6cd5\u3002globals()<\/code>\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u5b57\u5178\uff0c\u8be5\u5b57\u5178\u5305\u542b\u5f53\u524d\u5168\u5c40\u7b26\u53f7\u8868\u4e2d\u7684\u6240\u6709\u53d8\u91cf\u3002\u901a\u8fc7\u8fed\u4ee3\u8fd9\u4e2a\u5b57\u5178\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u5220\u9664\u81ea\u5df1\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u800c\u4e0d\u5f71\u54cdPython\u5185\u7f6e\u7684\u5168\u5c40\u53d8\u91cf\u3002\u8fd9\u79cd\u65b9\u6cd5\u5728\u9700\u8981\u4fdd\u6301\u89e3\u91ca\u5668\u8fd0\u884c\u7684\u540c\u65f6\u6e05\u7406\u5de5\u4f5c\u7a7a\u95f4\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Python\u4e2d\u5220\u9664\u6240\u6709\u53d8\u91cf\uff0c\u5305\u62ec\u5176\u4f18\u70b9\u548c\u5c40\u9650\u6027\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u91cd\u542f\u89e3\u91ca\u5668<\/strong><\/h2>\n

\u91cd\u542fPython\u89e3\u91ca\u5668\u662f\u5220\u9664\u6240\u6709\u53d8\u91cf\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u3002\u5728\u5927\u591a\u6570\u5f00\u53d1\u73af\u5883\u4e2d\uff0c\u5982Jupyter Notebook\u3001IPython\u3001PyCharm\u7b49\uff0c\u91cd\u65b0\u542f\u52a8\u89e3\u91ca\u5668\u53ef\u4ee5\u6e05\u9664\u6240\u6709\u53d8\u91cf\u548c\u6267\u884c\u7684\u4ee3\u7801\uff0c\u4f7f\u5f97\u73af\u5883\u91cd\u7f6e\u4e3a\u521d\u59cb\u72b6\u6001\u3002<\/p>\n<\/p>\n

\u4f18\u70b9<\/h2>\n<\/p>\n
    \n
  1. \u7b80\u5355\u76f4\u63a5<\/strong>\uff1a\u91cd\u542f\u89e3\u91ca\u5668\u4e0d\u9700\u8981\u4efb\u4f55\u4ee3\u7801\u64cd\u4f5c\uff0c\u53ea\u9700\u4e00\u4e2a\u6309\u94ae\u6216\u547d\u4ee4\u3002<\/li>\n
  2. \u5f7b\u5e95\u6e05\u9664<\/strong>\uff1a\u80fd\u591f\u786e\u4fdd\u6240\u6709\u7684\u5185\u5b58\u548c\u53d8\u91cf\u90fd\u88ab\u6e05\u9664\uff0c\u4e0d\u4f1a\u6709\u9057\u6f0f\u3002<\/li>\n<\/ol>\n

    \u5c40\u9650\u6027<\/h2>\n<\/p>\n
      \n
    1. \u4e22\u5931\u672a\u4fdd\u5b58\u7684\u5de5\u4f5c<\/strong>\uff1a\u91cd\u542f\u89e3\u91ca\u5668\u5c06\u4f1a\u4e22\u5931\u6240\u6709\u672a\u4fdd\u5b58\u7684\u6570\u636e\u548c\u4ee3\u7801\uff0c\u9700\u8981\u786e\u4fdd\u6240\u6709\u91cd\u8981\u4fe1\u606f\u5df2\u4fdd\u5b58\u3002<\/li>\n
    2. \u4e0d\u9002\u5408\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u7a0b\u5e8f<\/strong>\uff1a\u5982\u679c\u5728\u8fd0\u884c\u4e00\u4e2a\u957f\u65f6\u95f4\u7a0b\u5e8f\u4e2d\u91cd\u542f\u89e3\u91ca\u5668\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u4e2d\u65ad\uff0c\u9700\u8981\u91cd\u65b0\u5f00\u59cb\u3002<\/li>\n<\/ol>\n

      \u4e8c\u3001\u4f7f\u7528globals()<\/code>\u548cdel<\/code>\u547d\u4ee4<\/strong><\/h2>\n

      \u5728\u4e0d\u91cd\u542f\u89e3\u91ca\u5668\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u901a\u8fc7globals()<\/code>\u51fd\u6570\u7ed3\u5408del<\/code>\u547d\u4ee4\u6765\u5220\u9664\u53d8\u91cf\u3002<\/p>\n<\/p>\n

      \u4f7f\u7528globals()<\/code><\/h2>\n<\/p>\n

      globals()<\/code>\u51fd\u6570\u8fd4\u56de\u5f53\u524d\u6a21\u5757\u4e2d\u5b9a\u4e49\u7684\u5168\u5c40\u53d8\u91cf\u7684\u5b57\u5178\u3002\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u8fd9\u4e2a\u5b57\u5178\u6765\u5220\u9664\u6240\u6709\u7528\u6237\u5b9a\u4e49\u7684\u53d8\u91cf\u3002<\/p>\n<\/p>\n

      for name in list(globals().keys()):<\/p>\n
          if not name.startswith('_'):<\/p>\n
              del globals()[name]<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4f18\u70b9<\/h2>\n<\/p>\n
        \n
      1. \u7075\u6d3b\u63a7\u5236<\/strong>\uff1a\u53ef\u4ee5\u6709\u9009\u62e9\u5730\u5220\u9664\u53d8\u91cf\uff0c\u4e0d\u5fc5\u5168\u90e8\u6e05\u9664\u3002<\/li>\n
      2. \u4fdd\u6301\u73af\u5883\u8fd0\u884c<\/strong>\uff1a\u4e0d\u9700\u8981\u91cd\u542f\u89e3\u91ca\u5668\uff0c\u53ef\u4ee5\u7ee7\u7eed\u5f53\u524d\u7684\u5de5\u4f5c\u3002<\/li>\n<\/ol>\n
        \u5c40\u9650\u6027<\/h2>\n<\/p>\n
          \n
        1. \u53ef\u80fd\u8bef\u5220\u7cfb\u7edf\u53d8\u91cf<\/strong>\uff1a\u9700\u8981\u5c0f\u5fc3\u64cd\u4f5c\uff0c\u4ee5\u514d\u8bef\u5220Python\u5185\u7f6e\u7684\u5168\u5c40\u53d8\u91cf\u3002<\/li>\n
        2. \u590d\u6742\u5ea6\u8f83\u9ad8<\/strong>\uff1a\u5bf9\u4e8e\u521d\u5b66\u8005\u53ef\u80fd\u4e0d\u592a\u76f4\u89c2\uff0c\u9700\u8981\u4e00\u5b9a\u7684Python\u77e5\u8bc6\u3002<\/li>\n<\/ol>\n
          \u4e09\u3001\u5176\u4ed6\u65b9\u6cd5<\/strong><\/h2>\n
          \u4f7f\u7528locals()<\/code><\/h2>\n<\/p>\n
          \u5bf9\u4e8e\u51fd\u6570\u6216\u7c7b\u65b9\u6cd5\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528locals()<\/code>\u51fd\u6570\u6765\u5220\u9664\u3002<\/p>\n<\/p>\n
          def clear_local_vars():<\/p>\n
              local_vars = list(locals().keys())<\/p>\n
              for var in local_vars:<\/p>\n
                  del locals()[var]<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u5c40\u90e8\u53d8\u91cf\u7684\u6e05\u7406\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0clocals()<\/code>\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u5b57\u5178\u7684\u526f\u672c\uff0c\u76f4\u63a5\u5220\u9664\u5e76\u4e0d\u4f1a\u5f71\u54cd\u539f\u6765\u7684\u5c40\u90e8\u53d8\u91cf\u3002<\/p>\n<\/p>\n
          \u4f7f\u7528gc<\/code>\u6a21\u5757<\/h2>\n<\/p>\n
          gc<\/code>\u6a21\u5757\u7528\u4e8e\u63a7\u5236Python\u5783\u573e\u56de\u6536\u5668\u3002\u901a\u8fc7\u8c03\u7528gc.collect()<\/code>\u53ef\u4ee5\u5f3a\u5236\u8fdb\u884c\u4e00\u6b21\u5783\u573e\u56de\u6536\uff0c\u4f46\u8fd9\u5e76\u4e0d\u80fd\u5220\u9664\u53d8\u91cf\uff0c\u800c\u662f\u6e05\u7406\u672a\u5f15\u7528\u7684\u5bf9\u8c61\u3002<\/p>\n<\/p>\n
          import gc<\/p>\n
          gc.collect()<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4f7f\u7528dir()<\/code>\u548csetattr()<\/code><\/h2>\n<\/p>\n
          \u53ef\u4ee5\u901a\u8fc7dir()<\/code>\u51fd\u6570\u83b7\u53d6\u5f53\u524d\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\u5217\u8868\uff0c\u5e76\u4f7f\u7528setattr()<\/code>\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\u3002\u8fd9\u79cd\u65b9\u6cd5\u9700\u8981\u8fdb\u884c\u66f4\u590d\u6742\u7684\u64cd\u4f5c\uff0c\u901a\u5e38\u4e0d\u5efa\u8bae\u4f7f\u7528\u3002<\/p>\n<\/p>\n
          for var in dir():<\/p>\n
              if not var.startswith('_'):<\/p>\n
                  del globals()[var]<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u56db\u3001\u603b\u7ed3<\/strong><\/h2>\n
          \u5220\u9664\u6240\u6709\u53d8\u91cf\u7684\u65b9\u6cd5\u6709\u591a\u79cd\u9009\u62e9\uff0c\u91cd\u542f\u89e3\u91ca\u5668\u662f\u6700\u7b80\u5355\u7684\u65b9\u6cd5<\/strong>\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u60c5\u51b5\u3002\u5bf9\u4e8e\u9700\u8981\u4fdd\u6301\u73af\u5883\u8fd0\u884c\u7684\u60c5\u51b5\uff0c\u4f7f\u7528globals()<\/code>\u548cdel<\/code>\u547d\u4ee4\u5219\u66f4\u52a0\u7075\u6d3b\u3002\u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u6765\u51b3\u5b9a\uff0c\u786e\u4fdd\u4e0d\u4f1a\u8bef\u5220\u91cd\u8981\u7684\u53d8\u91cf\u548c\u6570\u636e\u3002<\/p>\n<\/p>\n
          \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
           \u5982\u4f55\u5728Python\u4e2d\u4e00\u6b21\u6027\u6e05\u9664\u6240\u6709\u53d8\u91cf\uff1f<\/strong>
          \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528globals()<\/code>\u51fd\u6570\u7ed3\u5408del<\/code>\u8bed\u53e5\u6765\u5220\u9664\u6240\u6709\u5168\u5c40\u53d8\u91cf\u3002\u5177\u4f53\u64cd\u4f5c\u662f\u83b7\u53d6\u5f53\u524d\u5168\u5c40\u547d\u540d\u7a7a\u95f4\u5b57\u5178\uff0c\u904d\u5386\u5176\u4e2d\u7684\u53d8\u91cf\u540d\u79f0\u5e76\u9010\u4e00\u5220\u9664\u3002\u8bf7\u6ce8\u610f\uff0c\u8fd9\u6837\u7684\u64cd\u4f5c\u4f1a\u6e05\u7a7a\u6240\u6709\u53d8\u91cf\uff0c\u5305\u62ec\u4f60\u53ef\u80fd\u9700\u8981\u7684\u7cfb\u7edf\u53d8\u91cf\uff0c\u6240\u4ee5\u4f7f\u7528\u65f6\u9700\u8c28\u614e\u3002<\/p>\n
          \u5220\u9664\u5c40\u90e8\u53d8\u91cf\u4e0e\u5168\u5c40\u53d8\u91cf\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong>
          \u5c40\u90e8\u53d8\u91cf\u662f\u5b9a\u4e49\u5728\u51fd\u6570\u5185\u90e8\u7684\u53d8\u91cf\uff0c\u800c\u5168\u5c40\u53d8\u91cf\u662f\u5728\u6574\u4e2a\u811a\u672c\u4e2d\u90fd\u80fd\u8bbf\u95ee\u7684\u53d8\u91cf\u3002\u8981\u5220\u9664\u5c40\u90e8\u53d8\u91cf\uff0c\u53ef\u4ee5\u5728\u51fd\u6570\u5185\u90e8\u4f7f\u7528del<\/code>\u8bed\u53e5\uff0c\u800c\u5220\u9664\u5168\u5c40\u53d8\u91cf\u5219\u9700\u8981\u4f7f\u7528globals()<\/code>\u51fd\u6570\u3002\u5220\u9664\u5c40\u90e8\u53d8\u91cf\u65f6\u9700\u8981\u786e\u4fdd\u4e0d\u4f1a\u5f71\u54cd\u5230\u51fd\u6570\u7684\u6b63\u5e38\u6267\u884c\u3002<\/p>\n
          \u6709\u54ea\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u907f\u514d\u624b\u52a8\u5220\u9664\u53d8\u91cf\uff1f<\/strong>
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