{"id":1108312,"date":"2025-01-08T16:58:57","date_gmt":"2025-01-08T08:58:57","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1108312.html"},"modified":"2025-01-08T16:59:04","modified_gmt":"2025-01-08T08:59:04","slug":"python%e4%b8%ad%e6%96%b0%e5%bb%ba%e4%b8%80%e4%b8%aa%e6%96%87%e4%bb%b6%e5%a6%82%e4%bd%95%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1108312.html","title":{"rendered":"python\u4e2d\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\u5982\u4f55\u64cd\u4f5c"},"content":{"rendered":"

\"python\u4e2d\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\u5982\u4f55\u64cd\u4f5c\"<\/p>\n

\u5728Python\u4e2d\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u3001with<\/code>\u8bed\u53e5\u3001\u4ee5\u53ca\u4e00\u4e9b\u9ad8\u7ea7\u7684\u7b2c\u4e09\u65b9\u5e93\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u3001\u4f7f\u7528with<\/code>\u8bed\u53e5\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5982pathlib<\/code>\u3002\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/strong><\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570<\/h2>\n<\/p>\n

\u4f7f\u7528Python\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u662f\u521b\u5efa\u6587\u4ef6\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u4e4b\u4e00\u3002open()<\/code>\u51fd\u6570\u6709\u4e24\u4e2a\u4e3b\u8981\u53c2\u6570\uff1a\u6587\u4ef6\u540d\u548c\u6a21\u5f0f\u3002\u6a21\u5f0f\u53ef\u4ee5\u662f\u8bfb\u3001\u5199\u3001\u8ffd\u52a0\u7b49\u3002\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\u5e76\u5199\u5165\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528\u5199\u6a21\u5f0f\uff08'w'\uff09\u3002<\/p>\n<\/p>\n

# \u4f7f\u7528open()\u51fd\u6570\u521b\u5efa\u6587\u4ef6<\/p>\n
file = open('newfile.txt', 'w')<\/p>\n
file.write('\u8fd9\u662f\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002')<\/p>\n
file.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c'w'<\/code>\u6a21\u5f0f\u8868\u793a\u5199\u5165\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5b83\u5c06\u88ab\u521b\u5efa\u3002\u5982\u679c\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728\uff0c\u5b83\u5c06\u88ab\u6e05\u7a7a\u3002<\/p>\n<\/p>\n
\u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
\u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
    \n
  1. \u7b80\u5355\u76f4\u63a5<\/strong>\uff1a\u9002\u5408\u65b0\u624b\u5b66\u4e60\u548c\u5c0f\u578b\u9879\u76ee\u3002<\/li>\n
  2. \u7075\u6d3b\u6027\u9ad8<\/strong>\uff1a\u53ef\u4ee5\u6307\u5b9a\u4e0d\u540c\u7684\u6a21\u5f0f\uff08\u5982\u8bfb\u3001\u5199\u3001\u8ffd\u52a0\u7b49\uff09\uff0c\u5e76\u4e14\u53ef\u4ee5\u63a7\u5236\u6587\u4ef6\u7684\u6253\u5f00\u548c\u5173\u95ed\u65f6\u95f4\u3002<\/li>\n<\/ol>\n
    \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
      \n
    1. \u9700\u8981\u624b\u52a8\u5173\u95ed\u6587\u4ef6<\/strong>\uff1a\u5982\u679c\u5fd8\u8bb0\u5173\u95ed\u6587\u4ef6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8d44\u6e90\u6cc4\u6f0f\u3002<\/li>\n
    2. \u9519\u8bef\u5904\u7406\u4e0d\u4fbf<\/strong>\uff1a\u9700\u8981\u989d\u5916\u7684\u4ee3\u7801\u6765\u5904\u7406\u53ef\u80fd\u7684\u9519\u8bef\u3002<\/li>\n<\/ol>\n
      \u4e8c\u3001\u4f7f\u7528with<\/code>\u8bed\u53e5<\/h2>\n<\/p>\n
      with<\/code>\u8bed\u53e5\u662f\u7ba1\u7406\u8d44\u6e90\u7684\u6700\u4f73\u5b9e\u8df5\u3002\u5728\u4f7f\u7528\u6587\u4ef6\u65f6\uff0cwith<\/code>\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u5b8c\u6bd5\u540e\u88ab\u6b63\u786e\u5730\u5173\u95ed\uff0c\u5373\u4f7f\u5728\u53d1\u751f\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b\u3002<\/p>\n<\/p>\n
      # \u4f7f\u7528with\u8bed\u53e5\u521b\u5efa\u6587\u4ef6<\/p>\n
      with open('newfile.txt', 'w') as file:<\/p>\n
          file.write('\u8fd9\u662f\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002')<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
      \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
        \n
      1. \u81ea\u52a8\u7ba1\u7406\u8d44\u6e90<\/strong>\uff1awith<\/code>\u8bed\u53e5\u4f1a\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\uff0c\u65e0\u9700\u624b\u52a8\u5173\u95ed\u3002<\/li>\n
      2. \u7b80\u6d01\u4ee3\u7801<\/strong>\uff1a\u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u51cf\u5c11\u4e86\u9519\u8bef\u5904\u7406\u7684\u590d\u6742\u6027\u3002<\/li>\n<\/ol>\n
        \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
          \n
        1. \u7075\u6d3b\u6027\u7565\u4f4e<\/strong>\uff1a\u76f8\u5bf9\u4e8eopen()<\/code>\u51fd\u6570\uff0cwith<\/code>\u8bed\u53e5\u7684\u7075\u6d3b\u6027\u7a0d\u4f4e\uff0c\u4f46\u8fd9\u901a\u5e38\u4e0d\u662f\u95ee\u9898\u3002<\/li>\n<\/ol>\n
          \u4e09\u3001\u4f7f\u7528pathlib<\/code>\u5e93<\/h2>\n<\/p>\n
          pathlib<\/code>\u662fPython 3.4\u5f15\u5165\u7684\u6807\u51c6\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u9762\u5411\u5bf9\u8c61\u7684\u6587\u4ef6\u7cfb\u7edf\u8def\u5f84\u5904\u7406\u65b9\u6cd5\u3002\u4f7f\u7528pathlib<\/code>\u5e93\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u64cd\u4f5c\u6587\u4ef6\u548c\u76ee\u5f55\u3002<\/p>\n<\/p>\n
          from pathlib import Path<\/p>\n
          \u4f7f\u7528pathlib\u521b\u5efa\u6587\u4ef6<\/strong><\/h2>\n
          file_path = Path('newfile.txt')<\/p>\n
          file_path.write_text('\u8fd9\u662f\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002')<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
          \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
            \n
          1. \u9762\u5411\u5bf9\u8c61<\/strong>\uff1a\u63d0\u4f9b\u4e86\u66f4\u76f4\u89c2\u548c\u73b0\u4ee3\u7684API\u3002<\/li>\n
          2. \u8de8\u5e73\u53f0<\/strong>\uff1apathlib<\/code>\u81ea\u52a8\u5904\u7406\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u8def\u5f84\u5dee\u5f02\u3002<\/li>\n<\/ol>\n
            \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
              \n
            1. \u4f9d\u8d56Python\u7248\u672c<\/strong>\uff1a\u53ea\u80fd\u5728Python 3.4\u53ca\u4ee5\u4e0a\u7248\u672c\u4f7f\u7528\u3002<\/li>\n<\/ol>\n
              \u56db\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93os<\/code>\u548cshutil<\/code><\/h2>\n<\/p>\n
              \u867d\u7136\u4e0d\u5e38\u7528\u4e8e\u7b80\u5355\u7684\u6587\u4ef6\u521b\u5efa\uff0cos<\/code>\u548cshutil<\/code>\u5e93\u5728\u5904\u7406\u590d\u6742\u7684\u6587\u4ef6\u548c\u76ee\u5f55\u64cd\u4f5c\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
              import os<\/p>\n
              \u4f7f\u7528os\u5e93\u521b\u5efa\u6587\u4ef6<\/strong><\/h2>\n
              with open(os.path.join(os.getcwd(), 'newfile.txt'), 'w') as file:<\/p>\n
                  file.write('\u8fd9\u662f\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
              \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                \n
              1. \u5f3a\u5927\u529f\u80fd<\/strong>\uff1a\u9002\u7528\u4e8e\u66f4\u590d\u6742\u7684\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\uff0c\u5982\u76ee\u5f55\u521b\u5efa\u3001\u6587\u4ef6\u79fb\u52a8\u7b49\u3002<\/li>\n
              2. \u8de8\u5e73\u53f0<\/strong>\uff1aos<\/code>\u5e93\u7684\u8bb8\u591a\u529f\u80fd\u90fd\u662f\u8de8\u5e73\u53f0\u7684\u3002<\/li>\n<\/ol>\n
                \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                  \n
                1. \u590d\u6742\u5ea6\u9ad8<\/strong>\uff1a\u5bf9\u4e8e\u7b80\u5355\u7684\u6587\u4ef6\u521b\u5efa\u64cd\u4f5c\uff0c\u4f7f\u7528os<\/code>\u5e93\u53ef\u80fd\u663e\u5f97\u8fc7\u4e8e\u590d\u6742\u3002<\/li>\n<\/ol>\n
                  \u4e94\u3001\u4f7f\u7528tempfile<\/code>\u5e93<\/h2>\n<\/p>\n
                  tempfile<\/code>\u5e93\u7528\u4e8e\u521b\u5efa\u4e34\u65f6\u6587\u4ef6\u548c\u76ee\u5f55\uff0c\u9002\u5408\u7528\u4e8e\u4e34\u65f6\u6570\u636e\u5b58\u50a8\uff0c\u6d4b\u8bd5\u7b49\u573a\u666f\u3002<\/p>\n<\/p>\n
                  import tempfile<\/p>\n
                  \u4f7f\u7528tempfile\u5e93\u521b\u5efa\u4e34\u65f6\u6587\u4ef6<\/strong><\/h2>\n
                  with tempfile.NamedTemporaryFile(delete=False) as temp_file:<\/p>\n
                      temp_file.write(b'\u8fd9\u662f\u4e00\u4e2a\u4e34\u65f6\u6587\u4ef6\u3002')<\/p>\n
                      print('\u4e34\u65f6\u6587\u4ef6\u521b\u5efa\u4e8e\uff1a', temp_file.name)<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
                  \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                    \n
                  1. \u5b89\u5168\u6027\u9ad8<\/strong>\uff1a\u4e34\u65f6\u6587\u4ef6\u81ea\u52a8\u547d\u540d\uff0c\u51cf\u5c11\u547d\u540d\u51b2\u7a81\u7684\u98ce\u9669\u3002<\/li>\n
                  2. \u81ea\u52a8\u6e05\u7406<\/strong>\uff1a\u53ef\u4ee5\u81ea\u52a8\u5220\u9664\u4e34\u65f6\u6587\u4ef6\uff0c\u51cf\u5c11\u5783\u573e\u6587\u4ef6\u3002<\/li>\n<\/ol>\n
                    \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                      \n
                    1. \u9002\u7528\u573a\u666f\u6709\u9650<\/strong>\uff1a\u4e3b\u8981\u7528\u4e8e\u4e34\u65f6\u6587\u4ef6\uff0c\u4e0d\u9002\u7528\u4e8e\u6c38\u4e45\u6570\u636e\u5b58\u50a8\u3002<\/li>\n<\/ol>\n
                      \u516d\u3001\u4f7f\u7528io<\/code>\u5e93<\/h2>\n<\/p>\n
                      io<\/code>\u5e93\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u7684I\/O\u64cd\u4f5c\uff0c\u53ef\u4ee5\u521b\u5efa\u5185\u5b58\u4e2d\u7684\u6587\u4ef6\u5bf9\u8c61\uff0c\u9002\u7528\u4e8e\u5904\u7406\u9700\u8981\u5728\u5185\u5b58\u4e2d\u64cd\u4f5c\u7684\u6587\u4ef6\u3002<\/p>\n<\/p>\n
                      import io<\/p>\n
                      \u4f7f\u7528io\u5e93\u521b\u5efa\u5185\u5b58\u6587\u4ef6<\/strong><\/h2>\n
                      file = io.StringIO()<\/p>\n
                      file.write('\u8fd9\u662f\u4e00\u4e2a\u5185\u5b58\u4e2d\u7684\u6587\u4ef6\u3002')<\/p>\n
                      print('\u6587\u4ef6\u5185\u5bb9\uff1a', file.getvalue())<\/p>\n
                      file.close()<\/p>\n
                      <\/code><\/pre>\n<\/p>\n
                      \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
                      \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                        \n
                      1. \u9ad8\u6027\u80fd<\/strong>\uff1a\u5728\u5185\u5b58\u4e2d\u64cd\u4f5c\u6587\u4ef6\uff0c\u6027\u80fd\u66f4\u9ad8\u3002<\/li>\n
                      2. \u7075\u6d3b\u6027<\/strong>\uff1a\u9002\u7528\u4e8e\u9700\u8981\u9891\u7e41\u8bfb\u5199\u7684\u4e34\u65f6\u6570\u636e\u3002<\/li>\n<\/ol>\n
                        \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                          \n
                        1. \u5185\u5b58\u5360\u7528<\/strong>\uff1a\u5927\u6587\u4ef6\u64cd\u4f5c\u53ef\u80fd\u4f1a\u5360\u7528\u5927\u91cf\u5185\u5b58\u3002<\/li>\n<\/ol>\n
                          \u4e03\u3001\u4f7f\u7528pandas<\/code>\u5e93<\/h2>\n<\/p>\n
                          \u5bf9\u4e8e\u5904\u7406\u6570\u636e\u7684\u9879\u76ee\uff0cpandas<\/code>\u5e93\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6587\u4ef6\u8bfb\u5199\u65b9\u6cd5\uff0c\u7279\u522b\u9002\u7528\u4e8e\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n<\/p>\n
                          import pandas as pd<\/p>\n
                          \u4f7f\u7528pandas\u521b\u5efa\u6587\u4ef6<\/strong><\/h2>\n
                          data = {'Name': ['Alice', 'Bob'], 'Age': [25, 30]}<\/p>\n
                          df = pd.DataFrame(data)<\/p>\n
                          df.to_csv('newfile.csv', index=False)<\/p>\n
                          <\/code><\/pre>\n<\/p>\n
                          \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
                          \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                            \n
                          1. \u9ad8\u6548\u6570\u636e\u5904\u7406<\/strong>\uff1a\u9002\u7528\u4e8e\u5904\u7406\u7ed3\u6784\u5316\u6570\u636e\uff0c\u5982CSV\u3001Excel\u7b49\u3002<\/li>\n
                          2. \u4e30\u5bcc\u529f\u80fd<\/strong>\uff1a\u63d0\u4f9b\u4e86\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u7684\u4e30\u5bcc\u529f\u80fd\u3002<\/li>\n<\/ol>\n
                            \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                              \n
                            1. \u4f9d\u8d56\u5e93<\/strong>\uff1a\u9700\u8981\u5b89\u88c5pandas<\/code>\u5e93\uff0c\u589e\u52a0\u4e86\u4f9d\u8d56\u3002<\/li>\n<\/ol>\n
                              \u516b\u3001\u4f7f\u7528json<\/code>\u5e93<\/h2>\n<\/p>\n
                              \u5982\u679c\u9700\u8981\u521b\u5efaJSON\u683c\u5f0f\u7684\u6587\u4ef6\uff0cjson<\/code>\u5e93\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
                              import json<\/p>\n
                              \u4f7f\u7528json\u5e93\u521b\u5efa\u6587\u4ef6<\/strong><\/h2>\n
                              data = {'name': 'Alice', 'age': 25}<\/p>\n
                              with open('newfile.json', 'w') as file:<\/p>\n
                                  json.dump(data, file)<\/p>\n
                              <\/code><\/pre>\n<\/p>\n
                              \u8be6\u7ec6\u63cf\u8ff0<\/h3>\n<\/p>\n
                              \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                                \n
                              1. \u9002\u7528\u4e8eJSON\u6570\u636e<\/strong>\uff1a\u65b9\u4fbf\u5730\u521b\u5efa\u548c\u89e3\u6790JSON\u683c\u5f0f\u6587\u4ef6\u3002<\/li>\n
                              2. \u5e7f\u6cdb\u652f\u6301<\/strong>\uff1aJSON\u662f\u4e00\u79cd\u5e7f\u6cdb\u652f\u6301\u7684\u6570\u636e\u4ea4\u6362\u683c\u5f0f\u3002<\/li>\n<\/ol>\n
                                \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                                  \n
                                1. \u9002\u7528\u8303\u56f4\u6709\u9650<\/strong>\uff1a\u4e3b\u8981\u9002\u7528\u4e8eJSON\u683c\u5f0f\u7684\u6570\u636e\uff0c\u4e0d\u9002\u7528\u4e8e\u5176\u4ed6\u683c\u5f0f\u3002<\/li>\n<\/ol>\n
                                  \u603b\u7ed3<\/h2>\n<\/p>\n
                                  \u5728Python\u4e2d\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u4f18\u70b9\u548c\u7f3a\u70b9\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u3002\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u548cwith<\/code>\u8bed\u53e5\u662f\u6700\u5e38\u89c1\u548c\u63a8\u8350\u7684\u65b9\u6cd5<\/strong>\uff0c\u800cpathlib<\/code>\u5e93\u63d0\u4f9b\u4e86\u66f4\u73b0\u4ee3\u548c\u76f4\u89c2\u7684API<\/strong>\uff0c\u9002\u5408\u5904\u7406\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u590d\u6742\u64cd\u4f5c<\/strong>\u3002\u5bf9\u4e8e\u6570\u636e\u5904\u7406\u9879\u76ee\uff0cpandas<\/code>\u5e93\u548cjson<\/code>\u5e93\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6570\u636e\u8bfb\u5199\u65b9\u6cd5<\/strong>\u3002\u5e0c\u671b\u901a\u8fc7\u672c\u7bc7\u6587\u7ae0\uff0c\u60a8\u80fd\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u521b\u5efa\u6587\u4ef6\u3002<\/p>\n<\/p>\n
                                  \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
                                   \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u672c\u6587\u4ef6\uff1f<\/strong>
                                  \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u672c\u6587\u4ef6\u3002\u60a8\u53ea\u9700\u63d0\u4f9b\u6587\u4ef6\u540d\u548c\u6a21\u5f0f\uff08\u4f8b\u5982\uff0c'w'<\/code>\u8868\u793a\u5199\u5165\u6a21\u5f0f\uff09\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0cPython\u4f1a\u81ea\u52a8\u521b\u5efa\u5b83\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a  <\/p>\n
                                  with open('new_file.txt', 'w') as file:\n    file.write('\u8fd9\u662f\u65b0\u6587\u4ef6\u7684\u5185\u5bb9\u3002')\n<\/code><\/pre>\n
                                  \u8be5\u4ee3\u7801\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3anew_file.txt<\/code>\u7684\u65b0\u6587\u4ef6\uff0c\u5e76\u5199\u5165\u4e00\u4e9b\u6587\u672c\u5185\u5bb9\u3002<\/p>\n
                                  \u5982\u4f55\u5728Python\u4e2d\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u6210\u529f\u521b\u5efa\uff1f<\/strong>
                                  \u53ef\u4ee5\u4f7f\u7528os<\/code>\u6a21\u5757\u4e2d\u7684path.exists()<\/code>\u65b9\u6cd5\u6765\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n
                                  import os\n\nif os.path.exists('new_file.txt'):\n    print('\u6587\u4ef6\u5df2\u6210\u529f\u521b\u5efa\uff01')\nelse:\n    print('\u6587\u4ef6\u672a\u521b\u5efa\u3002')\n<\/code><\/pre>\n
                                  \u8be5\u4ee3\u7801\u5c06\u8f93\u51fa\u6587\u4ef6\u662f\u5426\u5b58\u5728\u7684\u4fe1\u606f\uff0c\u5e2e\u52a9\u60a8\u786e\u8ba4\u521b\u5efa\u64cd\u4f5c\u7684\u6210\u529f\u4e0e\u5426\u3002<\/p>\n
                                  Python\u4e2d\u53ef\u4ee5\u4f7f\u7528\u54ea\u4e9b\u6a21\u5f0f\u521b\u5efa\u6587\u4ef6\uff1f<\/strong>
                                  \u5728Python\u4e2d\uff0copen()<\/code>\u51fd\u6570\u652f\u6301\u591a\u79cd\u6587\u4ef6\u6a21\u5f0f\uff0c\u5e38\u7528\u7684\u6709\uff1a  <\/p>\n
                                    \n
                                  • 'w'<\/code>\uff1a\u5199\u5165\u6a21\u5f0f\uff0c\u5982\u679c\u6587\u4ef6\u5df2\u5b58\u5728\uff0c\u5185\u5bb9\u4f1a\u88ab\u8986\u76d6\u3002<\/li>\n
                                  • 'x'<\/code>\uff1a\u72ec\u5360\u521b\u5efa\u6a21\u5f0f\uff0c\u4ec5\u5728\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\u521b\u5efa\u3002<\/li>\n
                                  • 'a'<\/code>\uff1a\u8ffd\u52a0\u6a21\u5f0f\uff0c\u5141\u8bb8\u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\u5185\u5bb9\u800c\u4e0d\u5220\u9664\u73b0\u6709\u5185\u5bb9\u3002
                                    \n\u9009\u62e9\u5408\u9002\u7684\u6a21\u5f0f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u6b63\u786e\u521b\u5efa\u6587\u4ef6\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()\u51fd\u6570\u3001with\u8bed\u53e5\u3001\u4ee5\u53ca\u4e00\u4e9b\u9ad8\u7ea7\u7684\u7b2c\u4e09\u65b9\u5e93 […]","protected":false},"author":3,"featured_media":1108326,"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\/1108312"}],"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=1108312"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1108312\/revisions"}],"predecessor-version":[{"id":1108328,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1108312\/revisions\/1108328"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1108326"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1108312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1108312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1108312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}