{"id":1136485,"date":"2025-01-08T21:36:32","date_gmt":"2025-01-08T13:36:32","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1136485.html"},"modified":"2025-01-08T21:36:37","modified_gmt":"2025-01-08T13:36:37","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8python%e4%b8%ad%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e6%96%b0%e7%9a%84%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1136485.html","title":{"rendered":"\u5982\u4f55\u5728python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6"},"content":{"rendered":"

\"\u5982\u4f55\u5728python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\"<\/p>\n

\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5185\u5efa\u7684open()<\/code>\u51fd\u6570\u3001\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u3001\u6307\u5b9a\u6587\u4ef6\u6a21\u5f0f\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/strong> \u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528open()<\/code>\u51fd\u6570\u5e76\u6307\u5b9a\u6a21\u5f0f\u4e3a'w'\u6216'x'\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63a2\u8ba8\u4e00\u4e9b\u5e38\u89c1\u7684\u6587\u4ef6\u64cd\u4f5c\uff0c\u4f8b\u5982\u5199\u5165\u6570\u636e\u3001\u8bfb\u53d6\u6570\u636e\u3001\u5173\u95ed\u6587\u4ef6\u7b49\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528 open()<\/code> \u51fd\u6570\u521b\u5efa\u6587\u4ef6<\/h2>\n<\/p>\n

\u5728Python\u4e2d\uff0copen()<\/code>\u51fd\u6570\u662f\u6700\u5e38\u7528\u7684\u6587\u4ef6\u64cd\u4f5c\u51fd\u6570\u3002\u901a\u8fc7\u6307\u5b9a\u4e0d\u540c\u7684\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7684\u6587\u4ef6\u64cd\u4f5c\u3002<\/p>\n<\/p>\n

1.1 \u57fa\u672c\u7528\u6cd5<\/h3>\n<\/p>\n

open()<\/code>\u51fd\u6570\u7684\u57fa\u672c\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\u4f60\u8981\u521b\u5efa\u6216\u6253\u5f00\u7684\u6587\u4ef6\u540d\uff0cmode<\/code>\u662f\u4f60\u5bf9\u6587\u4ef6\u8fdb\u884c\u7684\u64cd\u4f5c\u6a21\u5f0f\u3002\u5e38\u89c1\u7684\u6a21\u5f0f\u5305\u62ec\uff1a<\/p>\n<\/p>\n
    \n
  • 'w'<\/code>\uff1a\u5199\u5165\u6a21\u5f0f\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff1b\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u5c06\u8986\u76d6\u539f\u6709\u5185\u5bb9\u3002<\/li>\n
  • 'x'<\/code>\uff1a\u521b\u5efa\u6a21\u5f0f\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff1b\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u5c06\u5f15\u53d1FileExistsError\u3002<\/li>\n
  • 'a'<\/code>\uff1a\u8ffd\u52a0\u6a21\u5f0f\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff1b\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u6570\u636e\u5c06\u5199\u5165\u6587\u4ef6\u672b\u5c3e\u3002<\/li>\n
  • 'r'<\/code>\uff1a\u8bfb\u53d6\u6a21\u5f0f\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5c06\u5f15\u53d1FileNotFoundError\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    # \u4f7f\u7528'w'\u6a21\u5f0f\u521b\u5efa\u65b0\u6587\u4ef6<\/p>\n
    file = open('newfile.txt', 'w')<\/p>\n
    file.write('Hello, World!')<\/p>\n
    file.close()<\/p>\n
    \u4f7f\u7528'x'\u6a21\u5f0f\u521b\u5efa\u65b0\u6587\u4ef6<\/strong><\/h2>\n
    try:<\/p>\n
        file = open('newfile2.txt', 'x')<\/p>\n
        file.write('Hello, Python!')<\/p>\n
        file.close()<\/p>\n
    except FileExistsError:<\/p>\n
        print("File already exists.")<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    1.2 \u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668<\/h3>\n<\/p>\n
    \u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff08with<\/code>\u8bed\u53e5\uff09\u53ef\u4ee5\u66f4\u5b89\u5168\u5730\u64cd\u4f5c\u6587\u4ef6\uff0c\u56e0\u4e3a\u5b83\u4f1a\u81ea\u52a8\u5904\u7406\u6587\u4ef6\u7684\u6253\u5f00\u548c\u5173\u95ed\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    with open('newfile3.txt', 'w') as file:<\/p>\n
        file.write('Hello, World with context manager!')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e8c\u3001\u5199\u5165\u6570\u636e\u5230\u6587\u4ef6\u4e2d<\/h2>\n<\/p>\n
    \u5728\u521b\u5efa\u6587\u4ef6\u540e\uff0c\u901a\u5e38\u9700\u8981\u5199\u5165\u6570\u636e\u3002Python\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u4e00\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
    2.1 \u5199\u5165\u5355\u884c\u6570\u636e<\/h3>\n<\/p>\n
    \u4f7f\u7528write()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5199\u5165\u5355\u884c\u6570\u636e\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    with open('newfile4.txt', 'w') as file:<\/p>\n
        file.write('This is a single line of text.\\n')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    2.2 \u5199\u5165\u591a\u884c\u6570\u636e<\/h3>\n<\/p>\n
    \u4f7f\u7528writelines()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5199\u5165\u591a\u884c\u6570\u636e\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cwritelines()<\/code>\u65b9\u6cd5\u4e0d\u4f1a\u81ea\u52a8\u6dfb\u52a0\u6362\u884c\u7b26\uff0c\u56e0\u6b64\u9700\u8981\u624b\u52a8\u6dfb\u52a0\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    lines = [<\/p>\n
        'This is the first line.\\n',<\/p>\n
        'This is the second line.\\n',<\/p>\n
        'This is the third line.\\n'<\/p>\n
    ]<\/p>\n
    with open('newfile5.txt', 'w') as file:<\/p>\n
        file.writelines(lines)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e09\u3001\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/h2>\n<\/p>\n
    \u5728\u521b\u5efa\u548c\u5199\u5165\u6587\u4ef6\u540e\uff0c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u4e5f\u662f\u5e38\u89c1\u7684\u64cd\u4f5c\u3002Python\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u4e00\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
    3.1 \u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6<\/h3>\n<\/p>\n
    \u4f7f\u7528read()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    with open('newfile5.txt', 'r') as file:<\/p>\n
        content = file.read()<\/p>\n
        print(content)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    3.2 \u9010\u884c\u8bfb\u53d6\u6587\u4ef6<\/h3>\n<\/p>\n
    \u4f7f\u7528readline()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    with open('newfile5.txt', 'r') as file:<\/p>\n
        line = file.readline()<\/p>\n
        while line:<\/p>\n
            print(line, end='')<\/p>\n
            line = file.readline()<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    3.3 \u8bfb\u53d6\u6240\u6709\u884c<\/h3>\n<\/p>\n
    \u4f7f\u7528readlines()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u4e00\u6b21\u6027\u8bfb\u53d6\u6240\u6709\u884c\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u5404\u884c\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    with open('newfile5.txt', 'r') as file:<\/p>\n
        lines = file.readlines()<\/p>\n
        for line in lines:<\/p>\n
            print(line, end='')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u56db\u3001\u6587\u4ef6\u5173\u95ed\u548c\u5f02\u5e38\u5904\u7406<\/h2>\n<\/p>\n
    \u6b63\u786e\u5173\u95ed\u6587\u4ef6\u4ee5\u53ca\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\u4e2d\u7684\u5f02\u5e38\u662f\u4fdd\u8bc1\u7a0b\u5e8f\u5065\u58ee\u6027\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n
    4.1 \u81ea\u52a8\u5173\u95ed\u6587\u4ef6<\/h3>\n<\/p>\n
    \u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff08with<\/code>\u8bed\u53e5\uff09\u53ef\u4ee5\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\uff0c\u907f\u514d\u5fd8\u8bb0\u5173\u95ed\u6587\u4ef6\u5bfc\u81f4\u7684\u8d44\u6e90\u6cc4\u6f0f\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    with open('newfile6.txt', 'w') as file:<\/p>\n
        file.write('This file will be closed automatically.')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    4.2 \u624b\u52a8\u5173\u95ed\u6587\u4ef6<\/h3>\n<\/p>\n
    \u5982\u679c\u4e0d\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff0c\u9700\u8981\u624b\u52a8\u8c03\u7528close()<\/code>\u65b9\u6cd5\u6765\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    file = open('newfile7.txt', 'w')<\/p>\n
    file.write('This file needs to be closed manually.')<\/p>\n
    file.close()<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    4.3 \u5f02\u5e38\u5904\u7406<\/h3>\n<\/p>\n
    \u5728\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u65f6\uff0c\u6dfb\u52a0\u5f02\u5e38\u5904\u7406\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002\u4f8b\u5982\uff0c\u4f7f\u7528try<\/code>\u548cexcept<\/code>\u5757\u6765\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    try:<\/p>\n
        file = open('newfile8.txt', 'x')<\/p>\n
        file.write('This file may already exist.')<\/p>\n
    except FileExistsError:<\/p>\n
        print("File already exists.")<\/p>\n
    finally:<\/p>\n
        file.close()<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e94\u3001\u6587\u4ef6\u8def\u5f84\u548c\u76ee\u5f55\u64cd\u4f5c<\/h2>\n<\/p>\n
    \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6587\u4ef6\u901a\u5e38\u5b58\u50a8\u5728\u7279\u5b9a\u7684\u76ee\u5f55\u4e2d\u3002Python\u63d0\u4f9b\u4e86\u8bb8\u591a\u64cd\u4f5c\u6587\u4ef6\u8def\u5f84\u548c\u76ee\u5f55\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
    5.1 \u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684getcwd()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    print(os.getcwd())<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    5.2 \u6539\u53d8\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684chdir()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u6539\u53d8\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    os.chdir('\/path\/to\/directory')<\/p>\n
    print(os.getcwd())<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    5.3 \u521b\u5efa\u65b0\u76ee\u5f55<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684mkdir()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u521b\u5efa\u65b0\u76ee\u5f55\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    os.mkdir('new_directory')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    5.4 \u5220\u9664\u76ee\u5f55<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684rmdir()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5220\u9664\u7a7a\u76ee\u5f55\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    os.rmdir('new_directory')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    5.5 \u5217\u51fa\u76ee\u5f55\u5185\u5bb9<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684listdir()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5217\u51fa\u76ee\u5f55\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    print(os.listdir('.'))<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u516d\u3001\u6587\u4ef6\u590d\u5236\u548c\u79fb\u52a8<\/h2>\n<\/p>\n
    Python\u63d0\u4f9b\u4e86shutil<\/code>\u6a21\u5757\u6765\u5b9e\u73b0\u6587\u4ef6\u7684\u590d\u5236\u548c\u79fb\u52a8\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
    6.1 \u590d\u5236\u6587\u4ef6<\/h3>\n<\/p>\n
    \u4f7f\u7528shutil<\/code>\u6a21\u5757\u7684copy()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u590d\u5236\u6587\u4ef6\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import shutil<\/p>\n
    shutil.copy('newfile5.txt', 'copy_of_newfile5.txt')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    6.2 \u79fb\u52a8\u6587\u4ef6<\/h3>\n<\/p>\n
    \u4f7f\u7528shutil<\/code>\u6a21\u5757\u7684move()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u79fb\u52a8\u6587\u4ef6\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import shutil<\/p>\n
    shutil.move('copy_of_newfile5.txt', 'moved_copy_of_newfile5.txt')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e03\u3001\u6587\u4ef6\u6743\u9650\u548c\u5c5e\u6027<\/h2>\n<\/p>\n
    \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u4fee\u6539\u6587\u4ef6\u7684\u6743\u9650\u548c\u5c5e\u6027\u3002<\/p>\n<\/p>\n
    7.1 \u4fee\u6539\u6587\u4ef6\u6743\u9650<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684chmod()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u4fee\u6539\u6587\u4ef6\u6743\u9650\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    os.chmod('newfile5.txt', 0o755)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    7.2 \u83b7\u53d6\u6587\u4ef6\u5c5e\u6027<\/h3>\n<\/p>\n
    \u4f7f\u7528os<\/code>\u6a21\u5757\u7684stat()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n<\/p>\n
    import os<\/p>\n
    file_info = os.stat('newfile5.txt')<\/p>\n
    print(file_info)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u516b\u3001\u603b\u7ed3<\/h2>\n<\/p>\n
    \u901a\u8fc7\u672c\u6587\u7684\u8bb2\u89e3\uff0c\u6211\u4eec\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5728Python\u4e2d\u521b\u5efa\u65b0\u6587\u4ef6\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5e76\u6df1\u5165\u63a2\u8ba8\u4e86\u6587\u4ef6\u7684\u5199\u5165\u3001\u8bfb\u53d6\u3001\u5173\u95ed\u3001\u5f02\u5e38\u5904\u7406\u3001\u8def\u5f84\u548c\u76ee\u5f55\u64cd\u4f5c\u3001\u590d\u5236\u548c\u79fb\u52a8\u3001\u6743\u9650\u548c\u5c5e\u6027\u7b49\u5404\u4e2a\u65b9\u9762\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u548c\u6280\u5de7\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6587\u4ef6\u64cd\u4f5c\u7684\u6548\u7387\u548c\u5b89\u5168\u6027\u3002<\/strong><\/p>\n<\/p>\n
    \u5e0c\u671b\u672c\u6587\u80fd\u5bf9\u60a8\u5728Python\u4e2d\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u63d0\u4f9b\u6709\u4ef7\u503c\u7684\u53c2\u8003\u3002\u5982\u679c\u60a8\u6709\u4efb\u4f55\u7591\u95ee\u6216\u9700\u8981\u8fdb\u4e00\u6b65\u63a2\u8ba8\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00\uff0c\u6211\u4eec\u5c06\u5c3d\u529b\u89e3\u7b54\u60a8\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u6765\u521b\u5efa\u65b0\u6587\u4ef6\u3002\u53ea\u9700\u6307\u5b9a\u6587\u4ef6\u540d\u548c\u6a21\u5f0f\uff0c\u4f7f\u7528'w'<\/code>\u6a21\u5f0f\uff08\u5199\u5165\u6a21\u5f0f\uff09\u6216'x'<\/code>\u6a21\u5f0f\uff08\u72ec\u5360\u521b\u5efa\u6a21\u5f0f\uff09\u5373\u53ef\u521b\u5efa\u6587\u4ef6\u3002\u4f8b\u5982\uff0copen('newfile.txt', 'w')<\/code>\u4f1a\u521b\u5efa\u4e00\u4e2a\u540d\u4e3anewfile.txt<\/code>\u7684\u6587\u4ef6\u3002\u5982\u679c\u6587\u4ef6\u5df2\u5b58\u5728\uff0c\u4f7f\u7528'w'<\/code>\u6a21\u5f0f\u4f1a\u8986\u76d6\u539f\u6587\u4ef6\uff0c\u800c'x'<\/code>\u6a21\u5f0f\u5219\u4f1a\u5f15\u53d1\u9519\u8bef\u3002<\/p>\n
    \u521b\u5efa\u65b0\u6587\u4ef6\u540e\u5982\u4f55\u5411\u6587\u4ef6\u4e2d\u5199\u5165\u5185\u5bb9\uff1f<\/strong>
    \u4e00\u65e6\u521b\u5efa\u4e86\u65b0\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528write()<\/code>\u65b9\u6cd5\u5c06\u5185\u5bb9\u5199\u5165\u6587\u4ef6\u4e2d\u3002\u6253\u5f00\u6587\u4ef6\u65f6\uff0c\u786e\u4fdd\u4f7f\u7528\u5199\u5165\u6a21\u5f0f\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
    with open('newfile.txt', 'w') as f:\n    f.write('Hello, World!')\n<\/code><\/pre>\n
    \u4f7f\u7528with<\/code>\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u5728\u5199\u5165\u5b8c\u6210\u540e\u6587\u4ef6\u81ea\u52a8\u5173\u95ed\uff0c\u4ece\u800c\u907f\u514d\u6587\u4ef6\u6cc4\u6f0f\u3002<\/p>\n
    \u5982\u4f55\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u6210\u529f\u521b\u5efa\uff1f<\/strong>
    \u53ef\u4ee5\u901a\u8fc7os<\/code>\u6a21\u5757\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728\u3002\u4f7f\u7528os.path.exists()<\/code>\u51fd\u6570\u6765\u5224\u65ad\u6587\u4ef6\u662f\u5426\u5df2\u7ecf\u88ab\u521b\u5efa\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n
    import os\n\nif os.path.exists('newfile.txt'):\n    print("\u6587\u4ef6\u521b\u5efa\u6210\u529f")\nelse:\n    print("\u6587\u4ef6\u672a\u521b\u5efa")\n<\/code><\/pre>\n
    \u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u60a8\u7684\u7a0b\u5e8f\u4e2d\u88ab\u6b63\u786e\u521b\u5efa\u548c\u7ba1\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5185\u5efa\u7684open()\u51fd\u6570\u3001\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u3001\u6307\u5b9a\u6587\u4ef6\u6a21\u5f0f\u7b49\u65b9\u6cd5\u6765\u5b9e […]","protected":false},"author":3,"featured_media":1136493,"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\/1136485"}],"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=1136485"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1136485\/revisions"}],"predecessor-version":[{"id":1136498,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1136485\/revisions\/1136498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1136493"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1136485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1136485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1136485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}