{"id":1000004,"date":"2024-12-27T09:46:11","date_gmt":"2024-12-27T01:46:11","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1000004.html"},"modified":"2024-12-27T09:46:17","modified_gmt":"2024-12-27T01:46:17","slug":"python%e4%b8%8a%e5%a6%82%e4%bd%95%e6%89%93%e5%bc%80%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1000004.html","title":{"rendered":"python\u4e0a\u5982\u4f55\u6253\u5f00\u6587\u4ef6"},"content":{"rendered":"

\"python\u4e0a\u5982\u4f55\u6253\u5f00\u6587\u4ef6\"<\/p>\n

\u5728Python\u4e2d\u6253\u5f00\u6587\u4ef6\u7684\u65b9\u5f0f\u4e3b\u8981\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()\u51fd\u6570\u3001\u4f7f\u7528with\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u4e0a\u4e0b\u6587\u3001\u6307\u5b9a\u4e0d\u540c\u7684\u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\u7b49\u3002\u5176\u4e2d\uff0c\u4f7f\u7528with\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u4e0a\u4e0b\u6587\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u5b8c\u6bd5\u540e\u81ea\u52a8\u5173\u95ed\uff0c\u51cf\u5c11\u8d44\u6e90\u6cc4\u6f0f\u7684\u98ce\u9669\u3002<\/strong><\/p>\n<\/p>\n

\u5728Python\u4e2d\u64cd\u4f5c\u6587\u4ef6\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u4efb\u52a1\uff0c\u65e0\u8bba\u662f\u8bfb\u53d6\u6570\u636e\u8fd8\u662f\u5199\u5165\u6570\u636e\uff0cPython\u90fd\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5de5\u5177\u6765\u5904\u7406\u6587\u4ef6\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Python\u4e2d\u6253\u5f00\u6587\u4ef6\u5e76\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528open()\u51fd\u6570<\/p>\n<\/p>\n

    \n
  1. \u57fa\u7840\u7528\u6cd5<\/strong><\/li>\n<\/ol>\n

    Python\u63d0\u4f9b\u7684open()\u51fd\u6570\u662f\u6587\u4ef6\u64cd\u4f5c\u7684\u5165\u53e3\u3002\u901a\u8fc7\u5b83\uff0c\u53ef\u4ee5\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u5e76\u8fd4\u56de\u4e00\u4e2a\u6587\u4ef6\u5bf9\u8c61\u3002\u57fa\u672c\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n

    file_object = open('filename', 'mode')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5176\u4e2d\uff0cfilename<\/code>\u662f\u6587\u4ef6\u540d\uff0cmode<\/code>\u662f\u6587\u4ef6\u64cd\u4f5c\u6a21\u5f0f\u3002\u5e38\u89c1\u7684\u6a21\u5f0f\u5305\u62ec\uff1a<\/p>\n<\/p>\n
      \n
    • 'r'<\/code>\uff1a\u8bfb\u53d6\uff08\u9ed8\u8ba4\u6a21\u5f0f\uff09\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\u4f1a\u629b\u51fa\u9519\u8bef\u3002<\/li>\n
    • 'w'<\/code>\uff1a\u5199\u5165\uff0c\u521b\u5efa\u65b0\u6587\u4ef6\u6216\u8986\u76d6\u73b0\u6709\u6587\u4ef6\u3002<\/li>\n
    • 'a'<\/code>\uff1a\u8ffd\u52a0\uff0c\u5c06\u6570\u636e\u5199\u5165\u6587\u4ef6\u672b\u5c3e\u3002<\/li>\n
    • 'b'<\/code>\uff1a\u4e8c\u8fdb\u5236\u6a21\u5f0f\uff0c\u4e0e\u5176\u4ed6\u6a21\u5f0f\u7ed3\u5408\u4f7f\u7528\uff0c\u6bd4\u5982'rb'<\/code>\u6216'wb'<\/code>\u3002<\/li>\n<\/ul>\n
        \n
      1. \u8bfb\u53d6\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
        \u8bfb\u53d6\u6587\u4ef6\u662f\u6587\u4ef6\u64cd\u4f5c\u7684\u57fa\u7840\u4e4b\u4e00\u3002\u901a\u8fc7\u6307\u5b9a\u6a21\u5f0f\u4e3a'r'<\/code>\uff0c\u53ef\u4ee5\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8bfb\u53d6\u64cd\u4f5c\u3002Python\u63d0\u4f9b\u4e86\u591a\u79cd\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
          \n
        • \n
          read()\u65b9\u6cd5<\/strong>\uff1a\u4e00\u6b21\u6027\u8bfb\u53d6\u6587\u4ef6\u7684\u6240\u6709\u5185\u5bb9\uff0c\u9002\u7528\u4e8e\u6587\u4ef6\u8f83\u5c0f\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n
          with open('example.txt', 'r') as file:<\/p>\n
              content = file.read()<\/p>\n
              print(content)<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4f7f\u7528with<\/code>\u8bed\u53e5\u53ef\u4ee5\u81ea\u52a8\u7ba1\u7406\u4e0a\u4e0b\u6587\u8d44\u6e90\uff0c\u786e\u4fdd\u6587\u4ef6\u5728\u64cd\u4f5c\u5b8c\u6210\u540e\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n<\/p>\n<\/li>\n
        • \n
          readline()\u65b9\u6cd5<\/strong>\uff1a\u6bcf\u6b21\u8bfb\u53d6\u4e00\u884c\uff0c\u9002\u7528\u4e8e\u9010\u884c\u5904\u7406\u6587\u4ef6\u5185\u5bb9\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
          with open('example.txt', 'r') as file:<\/p>\n
              line = file.readline()<\/p>\n
              while line:<\/p>\n
                  print(line.strip())<\/p>\n
                  line = file.readline()<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n
        • \n
          readlines()\u65b9\u6cd5<\/strong>\uff1a\u4e00\u6b21\u6027\u8bfb\u53d6\u6240\u6709\u884c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5217\u8868\uff0c\u6bcf\u4e2a\u5143\u7d20\u662f\u6587\u4ef6\u7684\u4e00\u884c\u3002<\/p>\n<\/p>\n
          with open('example.txt', 'r') as file:<\/p>\n
              lines = file.readlines()<\/p>\n
              for line in lines:<\/p>\n
                  print(line.strip())<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n
            \n
          1. \u5199\u5165\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
            \u5199\u5165\u6587\u4ef6\u4e0e\u8bfb\u53d6\u6587\u4ef6\u7c7b\u4f3c\uff0c\u901a\u8fc7\u6307\u5b9a\u6a21\u5f0f\u4e3a'w'<\/code>\u6216'a'<\/code>\uff0c\u53ef\u4ee5\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u5199\u5165\u6216\u8ffd\u52a0\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
              \n
            • \n
              write()\u65b9\u6cd5<\/strong>\uff1a\u7528\u4e8e\u5199\u5165\u5b57\u7b26\u4e32\u5230\u6587\u4ef6\u3002<\/p>\n<\/p>\n
              with open('example.txt', 'w') as file:<\/p>\n
                  file.write('Hello, World!')<\/p>\n
              <\/code><\/pre>\n<\/p>\n<\/li>\n
            • \n
              writelines()\u65b9\u6cd5<\/strong>\uff1a\u7528\u4e8e\u5199\u5165\u4e00\u4e2a\u5b57\u7b26\u4e32\u5217\u8868\u5230\u6587\u4ef6\uff0c\u4e0d\u4f1a\u81ea\u52a8\u6dfb\u52a0\u6362\u884c\u7b26\u3002<\/p>\n<\/p>\n
              with open('example.txt', 'w') as file:<\/p>\n
                  lines = ['Hello, World!\\n', 'Welcome to Python programming.\\n']<\/p>\n
                  file.writelines(lines)<\/p>\n
              <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n
                \n
              1. \u4e8c\u8fdb\u5236\u6587\u4ef6\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n
                \u5f53\u64cd\u4f5c\u975e\u6587\u672c\u6587\u4ef6\uff08\u5982\u56fe\u7247\u3001\u97f3\u9891\u7b49\uff09\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u4e8c\u8fdb\u5236\u6a21\u5f0f\u3002<\/p>\n<\/p>\n
                  \n
                • \n
                  \u8bfb\u53d6\u4e8c\u8fdb\u5236\u6587\u4ef6<\/strong><\/p>\n<\/p>\n
                  with open('image.png', 'rb') as file:<\/p>\n
                      data = file.read()<\/p>\n
                  <\/code><\/pre>\n<\/p>\n<\/li>\n
                • \n
                  \u5199\u5165\u4e8c\u8fdb\u5236\u6587\u4ef6<\/strong><\/p>\n<\/p>\n
                  with open('copy.png', 'wb') as file:<\/p>\n
                      file.write(data)<\/p>\n
                  <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n
                  \u4e8c\u3001\u6587\u4ef6\u8def\u5f84\u7684\u5904\u7406<\/p>\n<\/p>\n
                  \u5728Python\u4e2d\uff0c\u6587\u4ef6\u8def\u5f84\u662f\u6253\u5f00\u6587\u4ef6\u7684\u91cd\u8981\u90e8\u5206\u3002\u53ef\u4ee5\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\u6216\u76f8\u5bf9\u8def\u5f84\u6765\u6307\u5b9a\u6587\u4ef6\u4f4d\u7f6e\u3002\u4e3a\u4e86\u66f4\u597d\u5730\u7ba1\u7406\u6587\u4ef6\u8def\u5f84\uff0cPython\u63d0\u4f9b\u4e86os\u548cpathlib\u6a21\u5757\u3002<\/p>\n<\/p>\n
                    \n
                  1. \u4f7f\u7528os\u6a21\u5757<\/strong><\/li>\n<\/ol>\n
                    os\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u4e9b\u65b9\u6cd5\u6765\u5904\u7406\u6587\u4ef6\u8def\u5f84\uff0c\u6bd4\u5982\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3001\u62fc\u63a5\u8def\u5f84\u7b49\u3002<\/p>\n<\/p>\n
                    import os<\/p>\n
                    current_dir = os.getcwd()<\/p>\n
                    file_path = os.path.join(current_dir, 'example.txt')<\/p>\n
                    with open(file_path, 'r') as file:<\/p>\n
                        content = file.read()<\/p>\n
                    <\/code><\/pre>\n<\/p>\n
                      \n
                    1. \u4f7f\u7528pathlib\u6a21\u5757<\/strong><\/li>\n<\/ol>\n
                      pathlib\u6a21\u5757\u662fPython 3.4\u5f15\u5165\u7684\uff0c\u7528\u4e8e\u7b80\u5316\u8def\u5f84\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
                      from pathlib import Path<\/p>\n
                      file_path = Path('example.txt')<\/p>\n
                      with file_path.open('r') as file:<\/p>\n
                          content = file.read()<\/p>\n
                      <\/code><\/pre>\n<\/p>\n
                      \u4e09\u3001\u6587\u4ef6\u5f02\u5e38\u5904\u7406<\/p>\n<\/p>\n
                      \u5728\u6587\u4ef6\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\uff0c\u6bd4\u5982\u6587\u4ef6\u4e0d\u5b58\u5728\u3001\u6743\u9650\u4e0d\u8db3\u7b49\u3002\u56e0\u6b64\uff0c\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u673a\u5236\u6765\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<\/p>\n
                      try:<\/p>\n
                          with open('example.txt', 'r') as file:<\/p>\n
                              content = file.read()<\/p>\n
                      except FileNotFoundError:<\/p>\n
                          print("The file does not exist.")<\/p>\n
                      except PermissionError:<\/p>\n
                          print("Permission denied.")<\/p>\n
                      <\/code><\/pre>\n<\/p>\n
                      \u901a\u8fc7\u4f7f\u7528try-except\u5757\uff0c\u53ef\u4ee5\u6355\u83b7\u7279\u5b9a\u7c7b\u578b\u7684\u5f02\u5e38\u5e76\u91c7\u53d6\u76f8\u5e94\u63aa\u65bd\u3002<\/p>\n<\/p>\n
                      \u56db\u3001\u6587\u4ef6\u7684\u9ad8\u7ea7\u64cd\u4f5c<\/p>\n<\/p>\n
                      \u9664\u4e86\u57fa\u672c\u7684\u6587\u4ef6\u8bfb\u5199\u64cd\u4f5c\uff0cPython\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\u7528\u4e8e\u6587\u4ef6\u5904\u7406\u3002<\/p>\n<\/p>\n
                        \n
                      1. \u6587\u4ef6\u6307\u9488\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n
                        \u5728\u6587\u4ef6\u8bfb\u53d6\u8fc7\u7a0b\u4e2d\uff0c\u6587\u4ef6\u6307\u9488\u7684\u4f4d\u7f6e\u4f1a\u4e0d\u65ad\u53d8\u5316\u3002\u53ef\u4ee5\u4f7f\u7528seek()\u65b9\u6cd5\u79fb\u52a8\u6307\u9488\uff0c\u4f7f\u7528tell()\u65b9\u6cd5\u83b7\u53d6\u5f53\u524d\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
                        with open('example.txt', 'r') as file:<\/p>\n
                            file.seek(5)  # \u79fb\u52a8\u5230\u7b2c6\u4e2a\u5b57\u8282<\/p>\n
                            content = file.read()<\/p>\n
                            print(content)<\/p>\n
                            position = file.tell()<\/p>\n
                            print(f"Current file pointer position: {position}")<\/p>\n
                        <\/code><\/pre>\n<\/p>\n
                          \n
                        1. \u6587\u4ef6\u8fed\u4ee3\u5668<\/strong><\/li>\n<\/ol>\n
                          \u6587\u4ef6\u5bf9\u8c61\u672c\u8eab\u662f\u53ef\u8fed\u4ee3\u7684\uff0c\u56e0\u6b64\u53ef\u4ee5\u76f4\u63a5\u5728\u5faa\u73af\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n
                          with open('example.txt', 'r') as file:<\/p>\n
                              for line in file:<\/p>\n
                                  print(line.strip())<\/p>\n
                          <\/code><\/pre>\n<\/p>\n
                            \n
                          1. \u6587\u4ef6\u7684\u4e34\u65f6\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n
                            \u5bf9\u4e8e\u9700\u8981\u4e34\u65f6\u6587\u4ef6\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u4f7f\u7528tempfile\u6a21\u5757\u521b\u5efa\u4e34\u65f6\u6587\u4ef6\u6216\u76ee\u5f55\u3002\u8fd9\u4e9b\u4e34\u65f6\u6587\u4ef6\u5728\u5173\u95ed\u540e\u4f1a\u81ea\u52a8\u5220\u9664\u3002<\/p>\n<\/p>\n
                            import tempfile<\/p>\n
                            with tempfile.TemporaryFile('w+t') as temp_file:<\/p>\n
                                temp_file.write('Temporary data\\n')<\/p>\n
                                temp_file.seek(0)<\/p>\n
                                print(temp_file.read())<\/p>\n
                            <\/code><\/pre>\n<\/p>\n
                            \u4e94\u3001\u6587\u4ef6\u7f16\u7801\u95ee\u9898<\/p>\n<\/p>\n
                            \u5728\u5904\u7406\u6587\u4ef6\u65f6\uff0c\u5c24\u5176\u662f\u5305\u542b\u975eASCII\u5b57\u7b26\u7684\u6587\u4ef6\uff0c\u6307\u5b9a\u6b63\u786e\u7684\u7f16\u7801\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u5728open()\u51fd\u6570\u4e2d\u901a\u8fc7encoding\u53c2\u6570\u6307\u5b9a\u6587\u4ef6\u7f16\u7801\u3002<\/p>\n<\/p>\n
                            with open('example.txt', 'r', encoding='utf-8') as file:<\/p>\n
                                content = file.read()<\/p>\n
                            <\/code><\/pre>\n<\/p>\n
                            \u516d\u3001\u6027\u80fd\u4f18\u5316\u5efa\u8bae<\/p>\n<\/p>\n
                            \u5728\u5904\u7406\u5927\u6587\u4ef6\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u6027\u80fd\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316\u5efa\u8bae\uff1a<\/p>\n<\/p>\n
                              \n
                            1. \u9010\u884c\u8bfb\u53d6<\/strong>\uff1a\u5bf9\u4e8e\u5927\u6587\u4ef6\uff0c\u9010\u884c\u8bfb\u53d6\u6bd4\u4e00\u6b21\u6027\u8bfb\u53d6\u66f4\u8282\u7701\u5185\u5b58\u3002<\/li>\n
                            2. \u589e\u91cf\u5f0f\u5199\u5165<\/strong>\uff1a\u5728\u5199\u5165\u6570\u636e\u65f6\uff0c\u5c3d\u91cf\u907f\u514d\u9891\u7e41\u6253\u5f00\u5173\u95ed\u6587\u4ef6\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u7d2f\u79ef\u5230\u4e00\u5b9a\u91cf\u540e\u518d\u6279\u91cf\u5199\u5165\u3002<\/li>\n
                            3. \u4f7f\u7528\u7f13\u5b58<\/strong>\uff1a\u5728\u9891\u7e41\u8bbf\u95ee\u7684\u6587\u4ef6\u64cd\u4f5c\u4e2d\u4f7f\u7528\u7f13\u5b58\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n
                            4. \u5e76\u884c\u5904\u7406<\/strong>\uff1a\u5bf9\u4e8e\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u591a\u7ebf\u7a0b\u6216\u591a\u8fdb\u7a0b\u6765\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<\/ol>\n
                              \u4e03\u3001\u6587\u4ef6\u7684\u6743\u9650\u7ba1\u7406<\/p>\n<\/p>\n
                              \u5728\u6587\u4ef6\u64cd\u4f5c\u4e2d\uff0c\u6743\u9650\u7ba1\u7406\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u65b9\u9762\u3002\u53ef\u4ee5\u4f7f\u7528os\u6a21\u5757\u6765\u68c0\u67e5\u6216\u4fee\u6539\u6587\u4ef6\u6743\u9650\u3002<\/p>\n<\/p>\n
                              import os<\/p>\n
                              \u68c0\u67e5\u6587\u4ef6\u662f\u5426\u53ef\u8bfb<\/strong><\/h2>\n
                              if os.access('example.txt', os.R_OK):<\/p>\n
                                  print('File is readable')<\/p>\n
                              \u4fee\u6539\u6587\u4ef6\u6743\u9650<\/strong><\/h2>\n
                              os.chmod('example.txt', 0o644)  # \u8bbe\u7f6e\u6587\u4ef6\u4e3a\u53ef\u8bfb\u5199<\/p>\n
                              <\/code><\/pre>\n<\/p>\n
                              \u603b\u7ed3\u6765\u8bf4\uff0cPython\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5de5\u5177\u548c\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\u3002\u65e0\u8bba\u662f\u7b80\u5355\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u8fd8\u662f\u590d\u6742\u7684\u8def\u5f84\u5904\u7406\u548c\u6743\u9650\u7ba1\u7406\uff0cPython\u90fd\u80fd\u63d0\u4f9b\u6709\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5728\u4f7f\u7528\u8fd9\u4e9b\u5de5\u5177\u65f6\uff0c\u5408\u7406\u5730\u7ba1\u7406\u8d44\u6e90\u3001\u5904\u7406\u5f02\u5e38\u3001\u4f18\u5316\u6027\u80fd\u662f\u5b9e\u73b0\u9ad8\u6548\u6587\u4ef6\u64cd\u4f5c\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n
                              \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
                               \u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528\u4e0d\u540c\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\uff1f<\/strong>
                              \u5728Python\u4e2d\uff0c\u6253\u5f00\u6587\u4ef6\u65f6\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u6a21\u5f0f\uff0c\u4f8b\u5982\u8bfb\u53d6\u6a21\u5f0f\uff08'r'\uff09\u3001\u5199\u5165\u6a21\u5f0f\uff08'w'\uff09\u3001\u9644\u52a0\u6a21\u5f0f\uff08'a'\uff09\u7b49\u3002\u8bfb\u53d6\u6a21\u5f0f\u7528\u4e8e\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5199\u5165\u6a21\u5f0f\u4f1a\u8986\u76d6\u73b0\u6709\u6587\u4ef6\u6216\u521b\u5efa\u65b0\u6587\u4ef6\uff0c\u9644\u52a0\u6a21\u5f0f\u5219\u662f\u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\u6570\u636e\u3002\u9009\u62e9\u9002\u5f53\u7684\u6a21\u5f0f\u662f\u786e\u4fdd\u6587\u4ef6\u64cd\u4f5c\u6210\u529f\u7684\u5173\u952e\u3002<\/p>\n
                              \u5728Python\u4e2d\u6253\u5f00\u6587\u4ef6\u65f6\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u5f02\u5e38\u5904\u7406\uff1f<\/strong>
                              \u5728\u5904\u7406\u6587\u4ef6\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u6587\u4ef6\u4e0d\u5b58\u5728\u6216\u6743\u9650\u4e0d\u8db3\u7b49\u95ee\u9898\u3002\u4f7f\u7528try-except\u8bed\u53e5\u53ef\u4ee5\u6709\u6548\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\uff0c\u907f\u514d\u7a0b\u5e8f\u5d29\u6e83\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u63d0\u4f9b\u7528\u6237\u53cb\u597d\u7684\u9519\u8bef\u4fe1\u606f\uff0c\u6307\u5bfc\u4ed6\u4eec\u8fdb\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\uff0c\u6bd4\u5982\u68c0\u67e5\u6587\u4ef6\u8def\u5f84\u6216\u6743\u9650\u8bbe\u7f6e\u3002<\/p>\n
                              \u4f7f\u7528with\u8bed\u53e5\u6253\u5f00\u6587\u4ef6\u6709\u4ec0\u4e48\u4f18\u52bf\uff1f<\/strong>
                              \u4f7f\u7528with\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u5b8c\u6bd5\u540e\u81ea\u52a8\u5173\u95ed\uff0c\u65e0\u8bba\u64cd\u4f5c\u662f\u5426\u6210\u529f\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u4ec5\u51cf\u5c11\u4e86\u4ee3\u7801\u884c\u6570\uff0c\u8fd8\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u5b89\u5168\u6027\uff0c\u9632\u6b62\u6587\u4ef6\u6cc4\u9732\u548c\u8d44\u6e90\u6d6a\u8d39\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4e13\u6ce8\u4e8e\u6587\u4ef6\u5185\u5bb9\u7684\u5904\u7406\uff0c\u800c\u65e0\u9700\u62c5\u5fc3\u6587\u4ef6\u5173\u95ed\u7684\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u6253\u5f00\u6587\u4ef6\u7684\u65b9\u5f0f\u4e3b\u8981\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()\u51fd\u6570\u3001\u4f7f\u7528with\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u4e0a\u4e0b\u6587\u3001\u6307\u5b9a\u4e0d\u540c\u7684\u6587 […]","protected":false},"author":3,"featured_media":1000016,"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\/1000004"}],"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=1000004"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1000004\/revisions"}],"predecessor-version":[{"id":1000017,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1000004\/revisions\/1000017"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1000016"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1000004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1000004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1000004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}