{"id":659,"date":"2017-04-03T19:54:17","date_gmt":"2017-04-03T11:54:17","guid":{"rendered":"http:\/\/192.168.1.20\/?p=659"},"modified":"2017-10-23T11:57:20","modified_gmt":"2017-10-23T03:57:20","slug":"python{d4daabd1ba368d9860c36387ddb72bbda14f8f9559d69d60a952800885260c03}e6{d4daabd1ba368d9860c36387ddb72bbda14f8f9559d69d60a952800885260c03}96{47dd41ec6bdcbd9a214c783a3735392b82ea6d1d918378c5a53e06407","status":"publish","type":"post","link":"http:\/\/alextop.top\/?p=659","title":{"rendered":"Python\u6587\u4ef6\u64cd\u4f5c"},"content":{"rendered":"

\n\u00a0<\/p>\n

\u4e3a\u4e86\u5b89\u5168\u8d77\u89c1\uff0c\u6700\u597d\u8fd8\u662f\u7ed9\u6253\u5f00\u7684\u6587\u4ef6\u5bf9\u8c61\u6307\u5b9a\u4e00\u4e2a\u540d\u5b57\uff0c\u8fd9\u6837\u5728\u5b8c\u6210\u64cd\u4f5c\u4e4b\u540e\u53ef\u4ee5\u8fc5\u901f\u5173\u95ed\u6587\u4ef6\uff0c\u9632\u6b62\u4e00\u4e9b\u65e0\u7528\u7684\u6587\u4ef6\u5bf9\u8c61\u5360\u7528\u5185\u5b58\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5bf9\u6587\u672c\u6587\u4ef6\u8bfb\u53d6\uff1a<\/span>
file_object = open(‘thefile.txt’)\u00a0<\/span>
try:\u00a0<\/span>
all_the_text = file_object.read( )\u00a0<\/span>
finally:\u00a0<\/span>
<\/span><\/span>
\n\t\t<\/span><\/p>\n

file_object.close( )
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

Python<\/strong><\/span><\/a>\u8bfb\u5199\u6587\u4ef6\u5b9e\u9645\u64cd\u4f5c\u7684\u4e94\u5927\u6b65\u9aa4<\/span>
\n\t\t\t<\/span><\/span><\/p>\n

\u4e00\u3001\u6253\u5f00\u6587\u4ef6<\/strong><\/span>
\n\t\t\t<\/span><\/span><\/p>\n

Python<\/span>\u8bfb\u5199\u6587\u4ef6\u5728\u8ba1\u7b97\u673a\u8bed\u8a00\u4e2d\u88ab\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u5176\u5e94\u7528\u7684\u7a0b\u5e8f\uff0c\u4ee5\u4e0b\u7684\u6587\u7ae0\u4f1a\u7ed9\u4f60\u8be6\u7ec6\u7684\u4ecb\u7ecd\u76f8\u5173\u5185\u5bb9\uff0c\u4f1a\u4f60\u5728\u4ee5\u540e\u7684\u5b66\u4e60\u7684\u8fc7\u7a0b\u4e2d\u6709\u6240\u5e2e\u52a9\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u8be6\u7ec6\u4ecb\u7ecd\u5176\u5e94\u7528\u7a0b\u5e8f\u3002<\/span>
<\/span>\u4ee3\u7801\u5982\u4e0b\uff1a<\/span>
\n\t\t\t<\/span><\/span><\/p>\n

    \n
  1. \n
    f\u00a0=\u00a0open(“d:\\test.txt”,\u00a0“w”) \u00a0
    \n<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n<\/ol>\n

    \u8bf4\u660e\uff1a<\/span>
    \n\t\t\t<\/span><\/span><\/p>\n

    \u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u540d\u79f0\uff0c\u5305\u62ec\u8def\u5f84\uff1b\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6253\u5f00\u7684\u6a21\u5f0f<\/span>mode
    ‘r’<\/span>\uff1a\u53ea\u8bfb\uff08\u7f3a\u7701\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219\u629b\u51fa\u9519\u8bef\uff09<\/span>
    ‘w’<\/span>\uff1a\u53ea\u5199\uff08\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5219\u81ea\u52a8\u521b\u5efa\u6587\u4ef6\uff09<\/span>
    ‘a’<\/span>\uff1a\u9644\u52a0\u5230\u6587\u4ef6\u672b\u5c3e<\/span>
    ‘r+’<\/span>\uff1a\u8bfb\u5199<\/span>
    <\/span>\u5982\u679c\u9700\u8981\u4ee5\u4e8c\u8fdb\u5236\u65b9\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u9700\u8981\u5728<\/span>mode<\/span>\u540e\u9762\u52a0\u4e0a\u5b57\u7b26<\/span>“b”<\/span>\uff0c\u6bd4\u5982<\/span>“rb””wb”<\/span>\u7b49<\/span>
    <\/span>\u4e8c\u3001\u8bfb\u53d6\u5185\u5bb9<\/strong><\/span>
    \n\t\t\t<\/span><\/span><\/p>\n

      \n
    1. \n
      f.read(size) \u00a0
      \n<\/span><\/div>\n<\/li>\n<\/ol>\n

      \u53c2\u6570<\/span>size<\/span>\u8868\u793a\u8bfb\u53d6\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u7701\u7565\u3002\u5982\u679c\u7701\u7565<\/span>size<\/span>\u53c2\u6570\uff0c\u5219\u8868\u793a\u8bfb\u53d6\u6587\u4ef6\u6240\u6709\u5185\u5bb9\u3002<\/span>
      \n\t\t\t<\/span><\/span><\/p>\n

        \n
      1. \n
        f.readline() \u00a0
        \n<\/span><\/div>\n<\/li>\n<\/ol>\n

        \u8bfb\u53d6\u6587\u4ef6\u4e00\u884c\u7684\u5185\u5bb9<\/span>
        \n\t\t\t<\/span><\/span><\/p>\n

          \n
        1. \n
          f.readlines() \u00a0
          \n<\/span><\/div>\n<\/li>\n<\/ol>\n

          \u8bfb\u53d6\u6240\u6709\u7684\u884c\u5230\u6570\u7ec4\u91cc\u9762<\/span>[line1,line2,…lineN]<\/span>\u3002\u5728\u907f\u514d\u5c06\u6240\u6709\u6587\u4ef6\u5185\u5bb9\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5e38\u5e38\u4f7f\u7528\uff0c\u4fbf\u4e8e\u63d0\u9ad8\u6548\u7387\u3002<\/span>
          \n\t\t\t<\/span><\/span><\/p>\n

          \u4e09\u3001\u5199\u5165\u6587\u4ef6<\/strong><\/span>
          \n\t\t\t<\/span><\/span><\/p>\n

            \n
          1. \n
            f.write(string) \u00a0
            \n<\/span><\/div>\n<\/li>\n<\/ol>\n

            \u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u5199\u5165\u6587\u4ef6\uff0c\u5982\u679c\u5199\u5165\u7ed3\u675f\uff0c\u5fc5\u987b\u5728\u5b57\u7b26\u4e32\u540e\u9762\u52a0\u4e0a<\/span>“\\n”<\/span>\uff0c\u7136\u540e<\/span>f.close()<\/span>\u5173\u95ed\u6587\u4ef6<\/span>
            <\/span>\u56db\u3001\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\u5b9a\u4f4d<\/strong><\/span>
            \n\t\t\t<\/span><\/span><\/p>\n

              \n
            1. \n
              f.read()\u00a0
              \n<\/span><\/div>\n<\/li>\n<\/ol>\n

              \u8bfb\u53d6\u4e4b\u540e\uff0c\u6587\u4ef6\u6307\u9488\u5230\u8fbe\u6587\u4ef6\u7684\u672b\u5c3e\uff0c\u5982\u679c\u518d\u6765\u4e00\u6b21<\/span>f.read()<\/span>\u5c06\u4f1a\u53d1\u73b0\u8bfb\u53d6\u7684\u662f\u7a7a\u5185\u5bb9\uff0c\u5982\u679c\u60f3\u518d\u6b21\u8bfb\u53d6\u5168\u90e8\u5185\u5bb9\uff0c\u5fc5\u987b\u5c06\u5b9a\u4f4d\u6307\u9488\u79fb\u52a8\u5230\u6587\u4ef6\u5f00\u59cb\uff1a<\/span>
              \n\t\t\t<\/span><\/span><\/p>\n

                \n
              1. \n
                f.seek(0) \u00a0
                \n<\/span><\/div>\n<\/li>\n<\/ol>\n

                \u8fd9\u4e2a\u51fd\u6570\u7684\u683c\u5f0f\u5982\u4e0b\uff08\u5355\u4f4d\u662f<\/span>bytes<\/span>\uff09\uff1a<\/span>
                \n\t\t\t<\/span><\/span><\/p>\n

                  \n
                1. \n
                  f.seek(offset,\u00a0from_what) \u00a0
                  \n<\/span><\/div>\n<\/li>\n<\/ol>\n

                  from_what<\/span>\u8868\u793a\u5f00\u59cb\u8bfb\u53d6\u7684\u4f4d\u7f6e\uff0c<\/span>offset<\/span>\u8868\u793a\u4ece<\/span>from_what<\/span>\u518d\u79fb\u52a8\u4e00\u5b9a\u91cf\u7684\u8ddd\u79bb\uff0c\u6bd4\u5982<\/span>f.seek(10, 3)<\/span>\u8868\u793a\u5b9a\u4f4d\u5230\u7b2c\u4e09\u4e2a\u5b57\u7b26\u5e76\u518d\u540e\u79fb<\/span>10<\/span>\u4e2a\u5b57\u7b26\u3002<\/span>from_what<\/span>\u503c\u4e3a<\/span>0<\/span>\u65f6\u8868\u793a\u6587\u4ef6\u7684\u5f00\u59cb\uff0c\u5b83\u4e5f\u53ef\u4ee5\u7701\u7565\uff0c\u7f3a\u7701\u662f<\/span>0<\/span>\u5373\u6587\u4ef6\u5f00\u5934\u3002\u4e0b\u9762\u7ed9\u51fa\u4e00<\/span>
                  \n\t\t\t<\/span><\/span><\/p>\n

                    \n
                  1. \n
                    f\u00a0=\u00a0open(‘\/tmp\/workfile’,\u00a0‘r+’) \u00a0
                    \n<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                  2. \n
                    f.write(‘0123456789abcdef’) \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  3. \n
                    f.seek(5)\u00a0#\u00a0Go\u00a0to\u00a0the\u00a06th\u00a0byte\u00a0in\u00a0the\u00a0file \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  4. \n
                    f.read(1)\u00a0 \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  5. \n
                    ‘5’ \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  6. \n
                    f.seek\u00a0(-3,\u00a02)\u00a0#\u00a0Go\u00a0to\u00a0the\u00a03rd\u00a0byte\u00a0before\u00a0the\u00a0end \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  7. \n
                    f.read(1) \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  8. \n
                    ‘d’ \u00a0
                    \n<\/span><\/div>\n<\/li>\n
                  9. \n
                    \u00a0
                    \n\u00a0<\/div>\n<\/li>\n<\/ol>\n

                    \u4e94\u3001\u5173\u95ed\u6587\u4ef6\u91ca\u653e\u8d44\u6e90<\/strong><\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    \u6587\u4ef6\u64cd\u4f5c\u5b8c\u6bd5\uff0c\u4e00\u5b9a\u8981\u8bb0\u5f97\u5173\u95ed\u6587\u4ef6<\/span>f.close()<\/span>\uff0c\u53ef\u4ee5\u91ca\u653e\u8d44\u6e90\u4f9b\u5176\u4ed6\u7a0b\u5e8f\u4f7f\u7528<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    Python<\/span>\u8bfb\u5199\u6587\u4ef6\u5728\u8ba1\u7b97\u673a\u8bed\u8a00\u4e2d\u88ab\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u5176\u5e94\u7528\u7684\u7a0b\u5e8f\uff0c\u4ee5\u4e0b\u7684\u6587\u7ae0\u4f1a\u7ed9\u4f60\u8be6\u7ec6\u7684\u4ecb\u7ecd\u76f8\u5173\u5185\u5bb9\uff0c\u4f1a\u4f60\u5728\u4ee5\u540e\u7684\u5b66\u4e60\u7684\u8fc7\u7a0b\u4e2d\u6709\u6240\u5e2e\u52a9\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u8be6\u7ec6\u4ecb\u7ecd\u5176\u5e94\u7528\u7a0b\u5e8f\u3002<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    \n\u00a0<\/p>\n

                    \u4e00\u3001<\/span>python<\/span>\u4e2d\u5bf9\u6587\u4ef6\u3001\u6587\u4ef6\u5939\u64cd\u4f5c\u65f6\u7ecf\u5e38\u7528\u5230\u7684<\/span>os<\/span>\u6a21\u5757\u548c<\/span>shutil<\/span>\u6a21\u5757\u5e38\u7528\u65b9\u6cd5\u3002<\/span><\/strong>
                    1.<\/span>\u5f97\u5230\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\uff0c\u5373\u5f53\u524d<\/span>Python<\/span>\u811a\u672c\u5de5\u4f5c\u7684\u76ee\u5f55\u8def\u5f84<\/span>: os.getcwd()
                    2.<\/span>\u8fd4\u56de\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u548c\u76ee\u5f55\u540d<\/span>:os.listdir()
                    3.<\/span>\u51fd\u6570\u7528\u6765\u5220\u9664\u4e00\u4e2a\u6587\u4ef6<\/span>:os.remove()
                    4.<\/span>\u5220\u9664\u591a\u4e2a\u76ee\u5f55\uff1a<\/span>os.removedirs(r”c<\/span>\uff1a<\/span>\\python”)
                    5.<\/span>\u68c0\u9a8c\u7ed9\u51fa\u7684\u8def\u5f84\u662f\u5426\u662f\u4e00\u4e2a\u6587\u4ef6\uff1a<\/span>os.path.isfile()
                    6.<\/span>\u68c0\u9a8c\u7ed9\u51fa\u7684\u8def\u5f84\u662f\u5426\u662f\u4e00\u4e2a\u76ee\u5f55\uff1a<\/span>os.path.isdir()
                    7.<\/span>\u5224\u65ad\u662f\u5426\u662f\u7edd\u5bf9\u8def\u5f84\uff1a<\/span>os.path.isabs()
                    8.<\/span>\u68c0\u9a8c\u7ed9\u51fa\u7684\u8def\u5f84\u662f\u5426\u771f\u5730\u5b58<\/span>:os.path.exists()
                    9.<\/span>\u8fd4\u56de\u4e00\u4e2a\u8def\u5f84\u7684\u76ee\u5f55\u540d\u548c\u6587\u4ef6\u540d<\/span>:os.path.split()\u00a0\u00a0\u00a0\u00a0\u00a0
                    <\/span>\u4f8b\u5b50\uff1a<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    \u4ee3\u7801\u5982\u4e0b<\/span>:
                    \n<\/span><\/span><\/p>\n

                    os.path.split(‘\/home\/swaroop\/byte\/code\/poem.txt’) <\/span>\u7ed3\u679c\uff1a<\/span>(‘\/home\/swaroop\/byte\/code’, ‘poem.txt’)
                    \n<\/span><\/span><\/p>\n


                    10.<\/span><\/span>\u5206\u79bb\u6269\u5c55\u540d\uff1a<\/span>os.path.splitext()<\/span>
                    11.<\/span><\/span>\u83b7\u53d6\u8def\u5f84\u540d\uff1a<\/span>os.path.dirname()<\/span>
                    12.<\/span><\/span>\u83b7\u53d6\u6587\u4ef6\u540d\uff1a<\/span>os.path.basename()<\/span>
                    13.<\/span><\/span>\u8fd0\u884c<\/span>shell<\/span>\u547d\u4ee4<\/span>: os.system()<\/span>
                    14.<\/span><\/span>\u8bfb\u53d6\u548c\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf<\/span>:os.getenv() <\/span>\u4e0e<\/span>os.putenv()<\/span>
                    15.<\/span><\/span>\u7ed9\u51fa\u5f53\u524d\u5e73\u53f0\u4f7f\u7528\u7684\u884c\u7ec8\u6b62\u7b26<\/span>:os.linesep\u00a0\u00a0\u00a0 Windows<\/span>\u4f7f\u7528<\/span>‘\\r\\n’<\/span>\uff0c<\/span>Linux<\/span>\u4f7f\u7528<\/span>‘\\n’<\/span>\u800c<\/span>Mac<\/span>\u4f7f\u7528<\/span>‘\\r’<\/span>
                    16.<\/span><\/span>\u6307\u793a\u4f60\u6b63\u5728\u4f7f\u7528\u7684\u5e73\u53f0\uff1a<\/span>os.name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>\u5bf9\u4e8e<\/span>Windows<\/span>\uff0c\u5b83\u662f<\/span>‘nt’<\/span>\uff0c\u800c\u5bf9\u4e8e<\/span>Linux\/Unix<\/span>\u7528\u6237\uff0c\u5b83\u662f<\/span>‘posix’<\/span>
                    17.<\/span><\/span>\u91cd\u547d\u540d\uff1a<\/span>os.rename(old<\/span>\uff0c<\/span> new)<\/span>
                    18.<\/span><\/span>\u521b\u5efa\u591a\u7ea7\u76ee\u5f55\uff1a<\/span>os.makedirs(r”c<\/span>\uff1a<\/span>\\python\\test”)<\/span>
                    19.<\/span><\/span>\u521b\u5efa\u5355\u4e2a\u76ee\u5f55\uff1a<\/span>os.mkdir(“test”)<\/span>
                    20.<\/span><\/span>\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027\uff1a<\/span>os.stat(file)<\/span>
                    21.<\/span><\/span>\u4fee\u6539\u6587\u4ef6\u6743\u9650\u4e0e\u65f6\u95f4\u6233\uff1a<\/span>os.chmod(file)<\/span>
                    22.<\/span><\/span>\u7ec8\u6b62\u5f53\u524d\u8fdb\u7a0b\uff1a<\/span>os.exit()<\/span>
                    23.<\/span><\/span>\u83b7\u53d6\u6587\u4ef6\u5927\u5c0f\uff1a<\/span>os.path.getsize(filename)<\/span>
                    <\/span>\u4e8c\u3001\u6587\u4ef6\u64cd\u4f5c\u65b9\u6cd5\u5927\u5168<\/strong><\/span>
                    1.os.mknod(“test.txt”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>\u521b\u5efa\u7a7a\u6587\u4ef6<\/span>
                    2.fp = open(“test.txt”,w)\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>\u76f4\u63a5\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\u5219\u521b\u5efa\u6587\u4ef6<\/span>
                    3.<\/span><\/span>\u5173\u4e8e<\/span>open <\/span>\u6a21\u5f0f\uff1a<\/span><\/span>
                    \n\t\t<\/span><\/p>\n

                    \u590d\u5236\u4ee3\u7801<\/span>\u00a0<\/span>\u4ee3\u7801\u5982\u4e0b<\/span>:
                    \n<\/span><\/span><\/p>\n

                    r:<\/span>\u4ee5\u8bfb\u65b9\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u53ef\u8bfb\u53d6\u6587\u4ef6\u4fe1\u606f\u3002<\/span>
                    w:<\/span>\u4ee5\u5199\u65b9\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u53ef\u5411\u6587\u4ef6\u5199\u5165\u4fe1\u606f\u3002\u5982\u6587\u4ef6\u5b58\u5728\uff0c\u5219\u6e05\u7a7a\u8be5\u6587\u4ef6\uff0c\u518d\u5199\u5165\u65b0\u5185\u5bb9<\/span>
                    a:<\/span>\u4ee5\u8ffd\u52a0\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\uff08\u5373\u4e00\u6253\u5f00\u6587\u4ef6\uff0c\u6587\u4ef6\u6307\u9488\u81ea\u52a8\u79fb\u5230\u6587\u4ef6\u672b\u5c3e\uff09\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\u5219\u521b\u5efa<\/span>
                    b:<\/span>\u4ee5\u4e8c\u8fdb\u5236\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u800c\u4e0d\u662f\u4ee5\u6587\u672c\u6a21\u5f0f\u3002\u8be5\u6a21\u5f0f\u53ea\u5bf9<\/span>Windows<\/span>\u6216<\/span>Dos<\/span>\u6709\u6548\uff0c\u7c7b<\/span>Unix<\/span>\u7684\u6587\u4ef6\u662f\u7528\u4e8c\u8fdb\u5236\u6a21\u5f0f\u8fdb\u884c\u64cd\u4f5c\u7684\u3002<\/span>
                    r+<\/span>\uff1a\u4ee5\u8bfb\u5199\u6a21\u5f0f\u6253\u5f00<\/span>
                    w+<\/span>\uff1a\u4ee5\u8bfb\u5199\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> w )
                    a+<\/span>\uff1a\u4ee5\u8bfb\u5199\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> a )
                    rb<\/span>\uff1a\u4ee5\u4e8c\u8fdb\u5236\u8bfb\u6a21\u5f0f\u6253\u5f00<\/span>
                    wb<\/span>\uff1a\u4ee5\u4e8c\u8fdb\u5236\u5199\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> w )
                    ab<\/span>\uff1a\u4ee5\u4e8c\u8fdb\u5236\u8ffd\u52a0\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> a )
                    rb+<\/span>\uff1a\u4ee5\u4e8c\u8fdb\u5236\u8bfb\u5199\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> r+ )
                    wb+<\/span>\uff1a\u4ee5\u4e8c\u8fdb\u5236\u8bfb\u5199\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> w+ )
                    ab+<\/span>\uff1a\u4ee5\u4e8c\u8fdb\u5236\u8bfb\u5199\u6a21\u5f0f\u6253\u5f00<\/span> (<\/span>\u53c2\u89c1<\/span> a+ )<\/p>\n

                    <\/span>\u6587\u4ef6\u5bf9\u8c61\u65b9\u6cd5<\/span>
                    f.close():<\/span>\u5173\u95ed\u6587\u4ef6\uff0c\u8bb0\u4f4f\u7528<\/span>open()<\/span>\u6253\u5f00\u6587\u4ef6\u540e\u4e00\u5b9a\u8981\u8bb0\u5f97\u5173\u95ed\u5b83\uff0c\u5426\u5219\u4f1a\u5360\u7528\u7cfb\u7edf\u7684\u53ef\u6253\u5f00\u6587\u4ef6\u53e5\u67c4\u6570\u3002<\/span>
                    f.fileno():<\/span>\u83b7\u5f97\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u662f\u4e00\u4e2a\u6570\u5b57<\/span>
                    f.flush():<\/span>\u5237\u65b0\u8f93\u51fa\u7f13\u5b58<\/span>
                    f.isatty():<\/span>\u5982\u679c\u6587\u4ef6\u662f\u4e00\u4e2a\u4ea4\u4e92\u7ec8\u7aef\uff0c\u5219\u8fd4\u56de<\/span>True<\/span>\uff0c\u5426\u5219\u8fd4\u56de<\/span>False<\/span>\u3002<\/span>
                    f.read([count]):<\/span>\u8bfb\u51fa\u6587\u4ef6\uff0c\u5982\u679c\u6709<\/span>count<\/span>\uff0c\u5219\u8bfb\u51fa<\/span>count<\/span>\u4e2a\u5b57\u8282\u3002<\/span>
                    f.readline():<\/span>\u8bfb\u51fa\u4e00\u884c\u4fe1\u606f\u3002<\/span>
                    f.readlines():
                    <\/span>\u8bfb\u51fa\u6240\u6709\u884c\uff0c\u4e5f\u5c31\u662f\u8bfb\u51fa\u6574\u4e2a\u6587\u4ef6\u7684\u4fe1\u606f\u3002<\/span>
                    f.seek(offset[,where]):<\/span>\u628a\u6587\u4ef6\u6307\u9488\u79fb\u52a8\u5230\u76f8\u5bf9\u4e8e<\/span>where<\/span>\u7684<\/span>offset<\/span>\u4f4d\u7f6e\u3002<\/span>where<\/span>\u4e3a<\/span>0<\/span>\u8868\u793a\u6587\u4ef6\u5f00\u59cb\u5904\uff0c\u8fd9\u662f\u9ed8\u8ba4\u503c<\/span>
                    \n\t\t\t<\/span>\uff1b<\/span>1<\/span>\u8868\u793a\u5f53\u524d\u4f4d\u7f6e\uff1b<\/span>2<\/span>\u8868\u793a\u6587\u4ef6\u7ed3\u5c3e\u3002<\/span>
                    f.tell():<\/span>\u83b7\u5f97\u6587\u4ef6\u6307\u9488\u4f4d\u7f6e\u3002<\/span>
                    f.truncate([size]):<\/span>\u622a\u53d6\u6587\u4ef6\uff0c\u4f7f\u6587\u4ef6\u7684\u5927\u5c0f\u4e3a<\/span>size<\/span>\u3002<\/span>
                    f.write(string):<\/span>\u628a<\/span>string<\/span>\u5b57\u7b26\u4e32\u5199\u5165\u6587\u4ef6\u3002<\/span>
                    f.writelines(list):<\/span>\u628a<\/span>list<\/span>\u4e2d\u7684\u5b57\u7b26\u4e32\u4e00\u884c\u4e00\u884c\u5730\u5199\u5165\u6587\u4ef6\uff0c\u662f\u8fde\u7eed\u5199\u5165\u6587\u4ef6\uff0c\u6ca1\u6709\u6362\u884c\u3002<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n


                    fp.read([size])\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #size<\/span>\u4e3a\u8bfb\u53d6\u7684\u957f\u5ea6\uff0c\u4ee5<\/span>byte<\/span>\u4e3a\u5355\u4f4d<\/span>
                    fp.readline([size])\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u8bfb\u4e00\u884c\uff0c\u5982\u679c\u5b9a\u4e49\u4e86<\/span>size<\/span>\uff0c\u6709\u53ef\u80fd\u8fd4\u56de\u7684\u53ea\u662f\u4e00\u884c\u7684\u4e00\u90e8\u5206<\/span>
                    fp.readlines([size])\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u628a\u6587\u4ef6\u6bcf\u4e00\u884c\u4f5c\u4e3a\u4e00\u4e2a<\/span>list<\/span>\u7684\u4e00\u4e2a\u6210\u5458\uff0c\u5e76\u8fd4\u56de\u8fd9\u4e2a<\/span>list<\/span>\u3002\u5176\u5b9e\u5b83\u7684\u5185\u90e8\u662f\u901a\u8fc7\u5faa\u73af\u8c03\u7528<\/span>readline()<\/span>\u6765\u5b9e\u73b0\u7684\u3002\u5982\u679c\u63d0\u4f9b<\/span>size<\/span>\u53c2\u6570\uff0c<\/span>size<\/span>\u662f\u8868\u793a\u8bfb\u53d6\u5185\u5bb9\u7684\u603b\u957f\uff0c\u4e5f\u5c31\u662f\u8bf4\u53ef\u80fd\u53ea\u8bfb\u5230\u6587\u4ef6\u7684\u4e00\u90e8\u5206\u3002<\/span>
                    fp.write(str)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u628a<\/span>str<\/span>\u5199\u5230\u6587\u4ef6\u4e2d\uff0c<\/span>write()<\/span>\u5e76\u4e0d\u4f1a\u5728<\/span>str<\/span>\u540e\u52a0\u4e0a\u4e00\u4e2a\u6362\u884c\u7b26<\/span>
                    fp.writelines(seq)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u628a<\/span>seq<\/span>\u7684\u5185\u5bb9\u5168\u90e8\u5199\u5230\u6587\u4ef6\u4e2d<\/span>(<\/span>\u591a\u884c\u4e00\u6b21\u6027\u5199\u5165<\/span>)<\/span>\u3002\u8fd9\u4e2a\u51fd\u6570\u4e5f\u53ea\u662f\u5fe0\u5b9e\u5730\u5199\u5165\uff0c\u4e0d\u4f1a\u5728\u6bcf\u884c\u540e\u9762\u52a0\u4e0a\u4efb\u4f55\u4e1c\u897f\u3002<\/span>
                    fp.close()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u5173\u95ed\u6587\u4ef6\u3002<\/span>python<\/span>\u4f1a\u5728\u4e00\u4e2a\u6587\u4ef6\u4e0d\u7528\u540e\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\uff0c\u4e0d\u8fc7\u8fd9\u4e00\u529f\u80fd\u6ca1\u6709\u4fdd\u8bc1\uff0c\u6700\u597d\u8fd8\u662f\u517b\u6210\u81ea\u5df1\u5173\u95ed\u7684\u4e60\u60ef\u3002<\/span>\u00a0 <\/span>\u5982\u679c\u4e00\u4e2a\u6587\u4ef6\u5728\u5173\u95ed\u540e\u8fd8\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u4f1a\u4ea7\u751f<\/span>ValueError
                    fp.flush()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u628a\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u5199\u5165\u786c\u76d8<\/span>
                    fp.fileno()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u8fd4\u56de\u4e00\u4e2a\u957f\u6574\u578b\u7684<\/span>“<\/span>\u6587\u4ef6\u6807\u7b7e<\/span>“
                    fp.isatty()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u6587\u4ef6\u662f\u5426\u662f\u4e00\u4e2a\u7ec8\u7aef\u8bbe\u5907\u6587\u4ef6\uff08<\/span>unix<\/span>\u7cfb\u7edf\u4e2d\u7684\uff09<\/span>
                    fp.tell()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u8fd4\u56de\u6587\u4ef6\u64cd\u4f5c\u6807\u8bb0\u7684\u5f53\u524d\u4f4d\u7f6e\uff0c\u4ee5\u6587\u4ef6\u7684\u5f00\u5934\u4e3a\u539f\u70b9<\/span>
                    fp.next()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u8fd4\u56de\u4e0b\u4e00\u884c\uff0c\u5e76\u5c06\u6587\u4ef6\u64cd\u4f5c\u6807\u8bb0\u4f4d\u79fb\u5230\u4e0b\u4e00\u884c\u3002\u628a\u4e00\u4e2a<\/span>file<\/span>\u7528\u4e8e<\/span>for \u2026 in file<\/span>\u8fd9\u6837\u7684\u8bed\u53e5\u65f6\uff0c\u5c31\u662f\u8c03\u7528<\/span>next()<\/span>\u51fd\u6570\u6765\u5b9e\u73b0\u904d\u5386\u7684\u3002<\/span>
                    fp.seek(offset[,whence])\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u5c06\u6587\u4ef6\u6253\u64cd\u4f5c\u6807\u8bb0\u79fb\u5230<\/span>offset<\/span>\u7684\u4f4d\u7f6e\u3002\u8fd9\u4e2a<\/span>offset<\/span>\u4e00\u822c\u662f\u76f8\u5bf9\u4e8e\u6587\u4ef6\u7684\u5f00\u5934\u6765\u8ba1\u7b97\u7684\uff0c\u4e00\u822c\u4e3a\u6b63\u6570\u3002\u4f46\u5982\u679c\u63d0\u4f9b\u4e86<\/span>whence<\/span>\u53c2\u6570\u5c31\u4e0d\u4e00\u5b9a\u4e86\uff0c<\/span>whence<\/span>\u53ef\u4ee5\u4e3a<\/span>0<\/span>\u8868\u793a\u4ece\u5934\u5f00\u59cb\u8ba1\u7b97\uff0c<\/span>1<\/span>\u8868\u793a\u4ee5\u5f53\u524d\u4f4d\u7f6e\u4e3a\u539f\u70b9\u8ba1\u7b97\u3002<\/span>2<\/span>\u8868\u793a\u4ee5\u6587\u4ef6\u672b\u5c3e\u4e3a\u539f\u70b9\u8fdb\u884c\u8ba1\u7b97\u3002\u9700\u8981\u6ce8\u610f\uff0c\u5982\u679c\u6587\u4ef6\u4ee5<\/span>a<\/span>\u6216<\/span>a+<\/span>\u7684\u6a21\u5f0f\u6253\u5f00\uff0c\u6bcf\u6b21\u8fdb\u884c\u5199\u64cd\u4f5c\u65f6\uff0c\u6587\u4ef6\u64cd\u4f5c\u6807\u8bb0\u4f1a\u81ea\u52a8\u8fd4\u56de\u5230\u6587\u4ef6\u672b\u5c3e\u3002<\/span>
                    fp.truncate([size])\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u628a\u6587\u4ef6\u88c1\u6210\u89c4\u5b9a\u7684\u5927\u5c0f\uff0c\u9ed8\u8ba4\u7684\u662f\u88c1\u5230\u5f53\u524d\u6587\u4ef6\u64cd\u4f5c\u6807\u8bb0\u7684\u4f4d\u7f6e\u3002\u5982\u679c<\/span>size<\/span>\u6bd4\u6587\u4ef6\u7684\u5927\u5c0f\u8fd8\u8981\u5927\uff0c\u4f9d\u636e\u7cfb\u7edf\u7684\u4e0d\u540c\u53ef\u80fd\u662f\u4e0d\u6539\u53d8\u6587\u4ef6\uff0c\u4e5f\u53ef\u80fd\u662f\u7528<\/span>0<\/span>\u628a\u6587\u4ef6\u8865\u5230\u76f8\u5e94\u7684\u5927\u5c0f\uff0c\u4e5f\u53ef\u80fd\u662f\u4ee5\u4e00\u4e9b\u968f\u673a\u7684\u5185\u5bb9\u52a0\u4e0a\u53bb\u3002<\/span>
                    <\/span>\u4e09\u3001\u76ee\u5f55\u64cd\u4f5c\u65b9\u6cd5\u5927\u5168<\/strong><\/span>
                    1.<\/span>\u521b\u5efa\u76ee\u5f55<\/span>
                    os.mkdir(“file”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
                    2.<\/span>\u590d\u5236\u6587\u4ef6\uff1a<\/span>
                    shutil.copyfile(“oldfile”,”newfile”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #oldfile<\/span>\u548c<\/span>newfile<\/span>\u90fd\u53ea\u80fd\u662f\u6587\u4ef6<\/span>
                    shutil.copy(“oldfile”,”newfile”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #oldfile<\/span>\u53ea\u80fd\u662f\u6587\u4ef6\u5939\uff0c<\/span>newfile<\/span>\u53ef\u4ee5\u662f\u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u662f\u76ee\u6807\u76ee\u5f55<\/span>
                    3.<\/span>\u590d\u5236\u6587\u4ef6\u5939\uff1a<\/span>
                    4.shutil.copytree(“olddir”,”newdir”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #olddir<\/span>\u548c<\/span>newdir<\/span>\u90fd\u53ea\u80fd\u662f\u76ee\u5f55\uff0c\u4e14<\/span>newdir<\/span>\u5fc5\u987b\u4e0d\u5b58\u5728<\/span>
                    5.<\/span>\u91cd\u547d\u540d\u6587\u4ef6\uff08\u76ee\u5f55\uff09<\/span>
                    os.rename(“oldname”,”newname”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u6587\u4ef6\u6216\u76ee\u5f55\u90fd\u662f\u4f7f\u7528\u8fd9\u6761\u547d\u4ee4<\/span>
                    6.<\/span>\u79fb\u52a8\u6587\u4ef6\uff08\u76ee\u5f55\uff09<\/span>
                    shutil.move(“oldpos”,”newpos”)\u00a0\u00a0\u00a0
                    7.<\/span>\u5220\u9664\u6587\u4ef6<\/span>
                    os.remove(“file”)
                    8.<\/span>\u5220\u9664\u76ee\u5f55<\/span>
                    os.rmdir(“dir”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u53ea\u80fd\u5220\u9664\u7a7a\u76ee\u5f55<\/span>
                    shutil.rmtree(“dir”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u7a7a\u76ee\u5f55\u3001\u6709\u5185\u5bb9\u7684\u76ee\u5f55\u90fd\u53ef\u4ee5\u5220<\/span>
                    9.<\/span>\u8f6c\u6362\u76ee\u5f55<\/span>
                    os.chdir(“path”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #<\/span>\u6362\u8def\u5f84<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    \n\u00a0<\/p>\n

                    \n\u00a0<\/p>\n

                    \u76ee\u5f55\u64cd\u4f5c\uff1a
                    os.mkdir(“file”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u521b\u5efa\u76ee\u5f55
                    \u590d\u5236\u6587\u4ef6\uff1a
                    shutil.copyfile(“oldfile”,”newfile”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 oldfile\u548cnewfile\u90fd\u53ea\u80fd\u662f\u6587\u4ef6
                    shutil.copy(“oldfile”,”newfile”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 oldfile\u53ea\u80fd\u662f\u6587\u4ef6\u5939\uff0cnewfile\u53ef\u4ee5\u662f\u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u662f\u76ee\u6807\u76ee\u5f55
                    \u590d\u5236\u6587\u4ef6\u5939\uff1a
                    shutil.copytree(“olddir”,”newdir”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 olddir\u548cnewdir\u90fd\u53ea\u80fd\u662f\u76ee\u5f55\uff0c\u4e14newdir\u5fc5\u987b\u4e0d\u5b58\u5728
                    \u91cd\u547d\u540d\u6587\u4ef6\uff08\u76ee\u5f55\uff09
                    os.rename(“oldname”,”newname”)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u6587\u4ef6\u6216\u76ee\u5f55\u90fd\u662f\u4f7f\u7528\u8fd9\u6761\u547d\u4ee4
                    \u79fb\u52a8\u6587\u4ef6\uff08\u76ee\u5f55\uff09
                    shutil.move(“oldpos”,”newpos”) \u00a0\u00a0
                    \u5220\u9664\u6587\u4ef6
                    os.remove(“file”)
                    \u5220\u9664\u76ee\u5f55
                    os.rmdir(“dir”)\u53ea\u80fd\u5220\u9664\u7a7a\u76ee\u5f55
                    shutil.rmtree(“dir”) \u00a0\u00a0 \u7a7a\u76ee\u5f55\u3001\u6709\u5185\u5bb9\u7684\u76ee\u5f55\u90fd\u53ef\u4ee5\u5220
                    \u8f6c\u6362\u76ee\u5f55
                    os.chdir(“path”) \u00a0\u00a0\u6362\u8def\u5f84<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    \n\u00a0<\/p>\n

                    \u7f16\u7a0b\u5b9e\u4f8b\uff1a<\/span>
                    \n\t\t\t<\/span><\/span><\/p>\n

                    [python]<\/strong>\u00a0view plain<\/span><\/a>\u00a0copy<\/span><\/a>
                    \n\t\t<\/span><\/p>\n

                    \u00a0print<\/span><\/a>?<\/span><\/a>
                    \n\t\t<\/span><\/p>\n

                      \n
                    1. \n
                      #\u00a0-*-\u00a0coding:\u00a0utf-8\u00a0-*-\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    2. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    3. \n
                      import<\/strong>\u00a0os\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    4. \n
                      import<\/strong>\u00a0shutil\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    5. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    6. \n
                      #\u00a0<\/span>\u4e00<\/span>.\u00a0<\/span>\u8def\u5f84\u64cd\u4f5c\uff1a\u5224\u65ad\u3001\u83b7\u53d6\u548c\u5220\u9664<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    7. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    8. \n
                      #1.\u00a0<\/span>\u5f97\u5230\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\uff0c\u5373\u5f53\u524d<\/span>Python<\/span>\u811a\u672c\u5de5\u4f5c\u7684\u76ee\u5f55\u8def\u5f84<\/span>:\u00a0os.getcwd()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    9. \n
                      #print:\u00a0currentpath:\u00a0\u00a0f:\\LearnPython\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    10. \n
                      currentpath\u00a0=\u00a0os.getcwd()\u00a0\u00a0
                      \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                    11. \n
                      print<\/strong>\u00a0“currentpath:\u00a0“,currentpath\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    12. \n
                      #2.\u00a0<\/span>\u8fd4\u56de\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u548c\u76ee\u5f55\u540d<\/span>:os.listdir()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    13. \n
                      #print:os.listdir():\u00a0\u00a0[‘test.txt’,\u00a0‘testRW.py’,\u00a0‘test1.txt’,\u00a0‘cmd.py’,\u00a0‘rwfile.py’,\u00a0‘downloadfile.py’,\u00a0‘date.py’,\u00a0‘time.py’,\u00a0‘datetime.py’,\u00a0‘file.py’]\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    14. \n
                      print<\/strong>\u00a0“os.listdir():\u00a0“,os.listdir(‘f:\\LearnPython’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    15. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    16. \n
                      path\u00a0=\u00a0“F:\\mmmmmmmmm\\debug_taobao_200003@taobao_android1.6_3.2.1.apk”\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    17. \n
                      #3.\u00a0<\/span>\u5224\u65ad\u7ed9\u51fa\u7684\u8def\u5f84\u662f\u5426\u771f\u5730\u5b58<\/span>:os.path.exists()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    18. \n
                      if<\/strong>\u00a0os.path.exists(path):\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    19. \n
                      \u00a0\u00a0\u00a0\u00a0#<\/span><\/span>\u5220\u9664\u4e00\u4e2a\u6587\u4ef6<\/span>:os.remove()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    20. \n
                      \u00a0\u00a0\u00a0\u00a0os.remove(path)\u00a0\u00a0
                      \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                    21. \n
                      else<\/strong>:\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    22. \n
                      \u00a0\u00a0\u00a0\u00a0print<\/strong>\u00a0path,“not\u00a0exist”\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    23. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    24. \n
                      #4.\u00a0<\/span>\u5220\u9664\u591a\u4e2a\u76ee\u5f55\uff1a<\/span>os.removedirs<\/span>\uff08<\/span>“c<\/span>\uff1a<\/span>\\python”<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    25. \n
                      #<\/span>\u5b83\u53ea\u80fd\u5220\u9664\u7a7a\u76ee\u5f55\uff0c\u5982\u679c\u76ee\u5f55\u91cc\u9762\u6709\u5185\u5bb9\u5c06\u4e0d\u4f1a\u88ab\u5220\u9664<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    26. \n
                      if<\/strong>\u00a0os.path.exists(“d:\/woqu”):\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    27. \n
                      \u00a0\u00a0\u00a0\u00a0os.removedirs(“d:\/woqu”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    28. \n
                      else<\/strong>:\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    29. \n
                      \u00a0\u00a0\u00a0\u00a0os.mkdir(“d:\/woqu”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    30. \n
                      \u00a0\u00a0\u00a0\u00a0os.removedirs(“d:\/woqu”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    31. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    32. \n
                      #5.\u00a0<\/span>\u5224\u65ad\u7ed9\u51fa\u7684\u8def\u5f84\u662f\u5426\u662f\u4e00\u4e2a\u6587\u4ef6\uff1a<\/span>os.path.isfile()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    33. \n
                      #print:\u00a0True\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    34. \n
                      print<\/strong>\u00a0os.path.isfile(“D:\\hello\\json.txt”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    35. \n
                      #6.\u00a0<\/span>\u5224\u65ad\u7ed9\u51fa\u7684\u8def\u5f84\u662f\u5426\u662f\u4e00\u4e2a\u76ee\u5f55\uff1a<\/span>os.path.isdir()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    36. \n
                      #print:\u00a0True\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    37. \n
                      print<\/strong>\u00a0os.path.isdir(“D:\\hello”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    38. \n
                      #7.\u00a0<\/span>\u5224\u65ad\u662f\u5426\u662f\u7edd\u5bf9\u8def\u5f84\uff1a<\/span>os.path.isabs()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    39. \n
                      #print:\u00a0True\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    40. \n
                      print<\/strong>\u00a0os.path.isabs(“D:\\hello”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    41. \n
                      #\u00a0\u00a0<\/span>\u5224\u65ad\u662f\u5426\u662f\u94fe\u63a5<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    42. \n
                      print<\/strong>\u00a0os.path.islink(‘http:\/\/www.baidu.com’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    43. \n
                      #8.\u00a0<\/span>\u8fd4\u56de\u4e00\u4e2a\u8def\u5f84\u7684\u76ee\u5f55\u540d\u548c\u6587\u4ef6\u540d<\/span>:os.path.split()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    44. \n
                      #eg\u00a0os.path.split(‘\/home\/swaroop\/byte\/code\/poem.txt’)\u00a0<\/span>\u7ed3\u679c\uff1a<\/span>(‘\/home\/swaroop\/byte\/code’,\u00a0‘poem.txt’)\u00a0\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    45. \n
                      #print:\u00a0(‘D:\\\\hello’,\u00a0‘json.txt’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/em><\/span><\/div>\n<\/li>\n
                    46. \n
                      print<\/strong>\u00a0os.path.split(“D:\\hello\\json.txt”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/em><\/span><\/div>\n<\/li>\n
                    47. \n
                      #9.\u00a0<\/span>\u5206\u79bb\u6269\u5c55\u540d\uff1a<\/span>os.path.splitext()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/em><\/span><\/div>\n<\/li>\n
                    48. \n
                      #print:(‘D:\\\\hello\\\\json’,\u00a0‘.txt’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/em><\/span><\/div>\n<\/li>\n
                    49. \n
                      print<\/strong>\u00a0os.path.splitext(“D:\\hello\\json.txt”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/em><\/span><\/div>\n<\/li>\n
                    50. \n
                      #10.\u00a0<\/em><\/span>\u83b7\u53d6<\/em>\u8def\u5f84\u540d\uff1a<\/span>os.path.dirname()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    51. \n
                      #print:\u00a0‘D:\\\\hello’\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    52. \n
                      print<\/strong>\u00a0os.path.dirname(“D:\\hello\\json.txt”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    53. \n
                      #11.\u00a0<\/span>\u83b7\u53d6\u6587\u4ef6\u540d\uff1a<\/span>os.path.basename()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    54. \n
                      #print:\u00a0‘json.txt’\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    55. \n
                      print<\/strong>\u00a0os.path.basename(“D:\\hello\\json.txt”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    56. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    57. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    58. \n
                      #13.\u00a0<\/span>\u6307\u793a\u4f60\u6b63\u5728\u4f7f\u7528\u7684\u5e73\u53f0\uff1a<\/span>os.name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\u5bf9\u4e8e<\/span>Windows<\/span>\uff0c\u5b83\u662f<\/span>‘nt’<\/span>\uff0c\u800c\u5bf9\u4e8e<\/span>Linux\/Unix<\/span>\u7528\u6237\uff0c\u5b83\u662f<\/span>‘posix’\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    59. \n
                      print<\/strong>\u00a0“os.name:\u00a0“,os.name\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    60. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    61. \n
                      #14.\u00a0linex\u00a0<\/span>\u4e0b\u7684\u547d\u4ee4<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    62. \n
                      if<\/strong>\u00a0os.name\u00a0==\u00a0‘posix’:\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    63. \n
                      \u00a0\u00a0\u00a0\u00a0#<\/span><\/span>\u8bfb\u53d6\u548c\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf<\/span>:os.getenv()\u00a0<\/span>\u4e0e<\/span>os.putenv()\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    64. \n
                      \u00a0\u00a0\u00a0\u00a0home_path\u00a0=\u00a0os.environ[‘HOME’]\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    65. \n
                      \u00a0\u00a0\u00a0\u00a0home_path\u00a0=\u00a0os.getenv(‘HOME’)\u00a0\u00a0#<\/span><\/span><\/span><\/span>\u8bfb\u53d6\u73af\u5883\u53d8\u91cf\u3000<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    66. \n
                      elif<\/strong>\u00a0os.name\u00a0==\u00a0‘nt’:\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    67. \n
                      \u00a0\u00a0\u00a0\u00a0home_path\u00a0=\u00a0‘d:’\u00a0\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    68. \n
                      \u00a0\u00a0\u00a0\u00a0print<\/strong>\u00a0‘home_path:\u00a0‘,home_path\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    69. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    70. \n
                      #15.\u00a0<\/span>\u7ed9\u51fa\u5f53\u524d\u5e73\u53f0\u4f7f\u7528\u7684\u884c\u7ec8\u6b62\u7b26<\/span>:os.linesep\u00a0\u00a0\u00a0\u00a0Windows<\/span>\u4f7f\u7528<\/span>‘\\r\\n’<\/span>\uff0c<\/span>Linux<\/span>\u4f7f\u7528<\/span>‘\\n’<\/span>\u800c<\/span>Mac<\/span>\u4f7f\u7528<\/span>‘\\r’\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    71. \n
                      print<\/strong>(os.linesep)\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    72. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    73. \n
                      #16.\u00a0<\/span>\u5e94\u4e3a<\/span>windows<\/span>\u548c<\/span>linux<\/span>\u7684\u8def\u5f84\u6709\u70b9\u70b9\u4e0d\u4e00\u6837\uff0c<\/span>windows<\/span>\u662f\u7528<\/span>\u00a0\\\\\u00a0<\/span>\u6765\u5206\u5272\u7684\uff0c<\/span>linux<\/span>\u662f\u7528<\/span>\u00a0\/\u00a0<\/span>\u6765\u5206\u9694\uff0c<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    74. \n
                      #<\/span>\u800c\u7528<\/span>os.sep\u00a0<\/span>\u4f1a\u81ea\u52a8\u6839\u636e\u7cfb\u7edf\u9009\u62e9\u7528\u54ea\u4e2a\u5206\u9694\u7b26\u3002<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    75. \n
                      print<\/strong>(os.sep)\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    76. \n
                      \u00a0\u00a0
                      \n\u00a0<\/div>\n<\/li>\n
                    77. \n
                      #17.\u00a0<\/span>\u91cd\u547d\u540d\uff1a<\/span>os.rename<\/span>\uff08<\/span>old<\/span>\uff0c<\/span>\u00a0new<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    78. \n
                      #<\/span>\u5148\u8fdb\u5165\u76ee\u5f55<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    79. \n
                      os.chdir(“d:\\\\hello”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    80. \n
                      print<\/strong>\u00a0os.getcwd()\u00a0\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    81. \n
                      #18.\u00a0<\/span>\u518d\u91cd\u547d\u540d<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    82. \n
                      os.rename(“1.txt”,\u00a0“11.txt”)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    83. \n
                      #19.\u00a0<\/span>\u521b\u5efa\u591a\u7ea7\u76ee\u5f55\uff1a<\/span>os.makedirs<\/span>\uff08<\/span>“c<\/span>\uff1a<\/span>\\python\\test”<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    84. \n
                      os.makedirs(‘d:\\h\\e\\l\\l\\o’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    85. \n
                      #20.\u00a0<\/span>\u521b\u5efa\u5355\u4e2a\u76ee\u5f55\uff1a<\/span>os.mkdir<\/span>\uff08<\/span>“test”<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    86. \n
                      os.mkdir(‘d:\\f’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    87. \n
                      #21.\u00a0<\/span>\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027\uff1a<\/span>os.stat<\/span>\uff08<\/span>file<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    88. \n
                      #print:\u00a0nt.stat_result(st_mode=33206,\u00a0st_ino=0L,\u00a0st_dev=0,\u00a0st_nlink=0,\u00a0st_uid=0,\u00a0st_gid=0,\u00a0st_size=497L,\u00a0st_atime=1346688000L,\u00a0st_mtime=1346748054L,\u00a0st_ctime=1346748052L)\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    89. \n
                      print<\/strong>\u00a0os.stat(‘d:\\hello\\json.txt’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    90. \n
                      #22.\u00a0<\/span>\u4fee\u6539\u6587\u4ef6\u6743\u9650\u4e0e\u65f6\u95f4\u6233\uff1a<\/span>os.chmod<\/span>\uff08<\/span>path,mode<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    91. \n
                      #<\/span>\u8fd9\u91cc\u6709\u4ecb\u7ecd\uff1a<\/span>http:\/\/blog.csdn.net\/wirelessqa\/article\/details\/7974477\u00a0\u00a0
                      \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                    92. \n
                      #23.\u00a0<\/span>\u7ec8\u6b62\u5f53\u524d\u8fdb\u7a0b\uff1a<\/span>os.exit<\/span>\uff08\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    93. \n
                      #24.\u00a0<\/span>\u83b7\u53d6\u6587\u4ef6\u5927\u5c0f\uff1a<\/span>os.path.getsize<\/span>\uff08<\/span>filename<\/span>\uff09<\/span>\u00a0\u00a0
                      \n\t\t\t\t\t\t<\/span><\/span><\/span><\/div>\n<\/li>\n
                    94. \n
                      print<\/strong>\u00a0os.path.getsize(‘d:\/hello\/json.txt’)\u00a0\u00a0
                      \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n<\/ol>\n

                      \n\u00a0<\/p>\n

                      \n\u00a0<\/p>\n

                      python<\/span>\u4e2d\u5982\u4f55\u5c06\u5217\u8868\u5199\u5165\u6587\u4ef6\uff1a<\/span>
                      \n\t\t\t<\/span><\/span><\/p>\n

                      \u5b9e\u4f8b\uff1a<\/span>
                      \n\t\t\t<\/span><\/span><\/p>\n

                      \u00a0print<\/span><\/a>?<\/span><\/a>\"\"<\/a>\"\"\/\"\"\/
                      \n\t\t<\/span><\/p>\n

                        \n
                      1. \n
                        a\u00a0=\u00a0[1,2,3,4,5,6,7,8,9]\u00a0\u00a0
                        \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                      2. \n
                        tmp\u00a0=\u00a0[]\u00a0\u00a0
                        \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                      3. \n
                        for<\/strong>\u00a0i\u00a0in<\/strong>\u00a0range(0,len(a),3):\u00a0\u00a0
                        \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                      4. \n
                        \u00a0tmp.append(str(a[i])+“,”+str(a[i+1])+“,”+str(a[i+2])+“\\n”)\u00a0\u00a0
                        \n\t\t\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                      5. \n
                        file(“.\/a.txt”,‘w’).writelines(tmp)\u00a0\u00a0
                        \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n<\/ol>\n


                        python <\/span><\/span>\u8bfb\u53d6<\/span>txt<\/span>\u6587\u4ef6\u5230\u5217\u8868\u4e2d<\/span>
                        <\/span><\/span>
                        \n\t\t<\/span><\/p>\n

                        \u5b9e\u4f8b\uff1a<\/span>
                        \n\t\t\t<\/span><\/span><\/p>\n

                        \u5047\u5982txt\u6587\u4ef6\u5185\u5bb9\u4e3a\uff1aaaa,bbb,ccc
                        \n<\/span><\/p>\n

                        \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0 ddd,eee,fff
                        \n<\/span><\/p>\n

                        \n\u00a0<\/p>\n

                        \u6211\u8981\u8bfb\u53d6\u4fdd\u5b58\u5230\u5217\u8868\u4e2d\u53bb\uff0c\u663e\u793a\u7ed3\u679c\u4e3a[[aaa,bbb,ccc],[ddd,eee,fff]]
                        \n<\/span><\/p>\n

                        \n\u00a0<\/p>\n

                        [python]<\/strong>\u00a0view plain<\/span><\/a>\u00a0copy<\/span><\/a>
                        \n\t\t<\/span><\/p>\n

                        \u00a0print<\/span><\/a>?<\/span><\/a>\"\"<\/a>\"\"\/\"\"\/
                        \n\t\t<\/span><\/p>\n

                          \n
                        1. \n
                          txtpath=r“a.txt”\u00a0\u00a0
                          \n\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                        2. \n
                          fp=open(txtpath)\u00a0\u00a0
                          \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                        3. \n
                          arr=[]\u00a0\u00a0
                          \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                        4. \n
                          for<\/strong>\u00a0lines\u00a0in<\/strong>\u00a0fp.readlines():\u00a0\u00a0
                          \n\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                        5. \n
                          \u00a0\u00a0\u00a0\u00a0lines=lines.replace(“\\n”,”“).split(“,”)\u00a0\u00a0
                          \n\t\t\t\t\t\t\t\t\t<\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n<\/li>\n
                        6. \n
                          \u00a0\u00a0\u00a0\u00a0arr.append(lines)\u00a0\u00a0
                          \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n
                        7. \n
                          fp.close()\u00a0\u00a0
                          \n\t\t\t\t\t<\/span><\/span><\/div>\n<\/li>\n<\/ol>\n

                          \"\"<\/a>
                          \n\t\t<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                          \u00a0 \u4e3a\u4e86\u5b89\u5168\u8d77\u89c1\uff0c\u6700\u597d\u8fd8\u662f\u7ed9\u6253…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,10],"tags":[],"class_list":["post-659","post","type-post","status-publish","format-standard","hentry","category-python","category-jishu"],"_links":{"self":[{"href":"http:\/\/alextop.top\/index.php?rest_route=\/wp\/v2\/posts\/659"}],"collection":[{"href":"http:\/\/alextop.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/alextop.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/alextop.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/alextop.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=659"}],"version-history":[{"count":1,"href":"http:\/\/alextop.top\/index.php?rest_route=\/wp\/v2\/posts\/659\/revisions"}],"predecessor-version":[{"id":994,"href":"http:\/\/alextop.top\/index.php?rest_route=\/wp\/v2\/posts\/659\/revisions\/994"}],"wp:attachment":[{"href":"http:\/\/alextop.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/alextop.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=659"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/alextop.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

                      [python]<\/strong>\u00a0view plain<\/span><\/a>\u00a0copy<\/span><\/a>
                      \n\t\t<\/span><\/p>\n