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    os: This module provides a portable way of using operating system dependent functionality.


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    sys: This module provides access to some variables used or maintained by the interpreter and to functions that interact strongly with the interpreter.


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    os.remove() ɾ³ýÎļþ

    os.rename() ÖØÃüÃûÎļþ

    os.walk() Éú³ÉĿ¼Ê÷ϵÄËùÓÐÎļþÃû

    os.chdir() ¸Ä±äĿ¼

    os.mkdir/makedirs ´´½¨Ä¿Â¼/¶à²ãĿ¼

    os.rmdir/removedirs ɾ³ýĿ¼/¶à²ãĿ¼

    os.listdir() ÁгöÖ¸¶¨Ä¿Â¼µÄÎļþ

    os.getcwd() È¡µÃµ±Ç°¹¤×÷Ŀ¼

    os.chmod() ¸Ä±äĿ¼ȨÏÞ

    os.path.basename() È¥µôĿ¼·¾¶£¬·µ»ØÎļþÃû

    os.path.dirname() È¥µôÎļþÃû£¬·µ»ØÄ¿Â¼Â·¾¶

    os.path.join() ½«·ÖÀëµÄ¸÷²¿·Ö×éºÏ³ÉÒ»¸ö·¾¶Ãû

    os.path.split() ·µ»Ø( dirname(), basename())Ôª×é

    os.path.splitext() ·µ»Ø (filename, extension) Ôª×é

    os.path.getatime\ctime\mtime ·Ö±ð·µ»Ø×î½ü·ÃÎÊ¡¢´´½¨¡¢ÐÞ¸Äʱ¼ä

    os.path.getsize() ·µ»ØÎļþ´óС

    os.path.exists() ÊÇ·ñ´æÔÚ

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    os.path.isdir() ÊÇ·ñΪĿ¼

    os.path.isfile() ÊÇ·ñΪÎļþ


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    sys.modules.keys() ·µ»ØËùÓÐÒѾ­µ¼ÈëµÄÄ£¿éÁбí

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    sys.exit(n) Í˳ö³ÌÐò£¬Õý³£Í˳öʱexit(0)

    sys.hexversion »ñÈ¡Python½âÊͳÌÐòµÄ°æ±¾Öµ£¬16½øÖƸñʽÈ磺0x020403F0

    sys.version »ñÈ¡Python½âÊͳÌÐòµÄ°æ±¾ÐÅÏ¢

    sys.maxint ×î´óµÄIntÖµ

    sys.maxunicode ×î´óµÄUnicodeÖµ

    sys.modules ·µ»ØÏµÍ³µ¼ÈëµÄÄ£¿é×ֶΣ¬keyÊÇÄ£¿éÃû£¬valueÊÇÄ£¿é

    sys.path ·µ»ØÄ£¿éµÄËÑË÷·¾¶£¬³õʼ»¯Ê±Ê¹ÓÃPYTHONPATH»·¾³±äÁ¿µÄÖµ

    sys.platform ·µ»Ø²Ù×÷ϵͳƽ̨Ãû³Æ

    sys.stdout ±ê×¼Êä³ö

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    sys.stderr ´íÎóÊä³ö

    sys.exc_clear() ÓÃÀ´Çå³ýµ±Ç°Ïß³ÌËù³öÏֵĵ±Ç°µÄ»ò×î½üµÄ´íÎóÐÅÏ¢

    sys.exec_prefix ·µ»ØÆ½Ì¨¶ÀÁ¢µÄpythonÎļþ°²×°µÄλÖÃ

    sys.byteorder ±¾µØ×Ö½Ú¹æÔòµÄָʾÆ÷£¬big-endianƽ̨µÄÖµÊÇ'big',little-endianƽ̨µÄÖµÊÇ'little'

    sys.copyright ¼Ç¼python°æÈ¨Ïà¹ØµÄ¶«Î÷

    sys.api_version ½âÊÍÆ÷µÄCµÄAPI°æ±¾


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