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center(width[, fillchar]) ,
ljust(width[, fillchar]),
rjust(width[, fillchar]),
zfill(width),
expandtabs([tabsize])
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fillchar ²ÎÊýÖ¸¶¨ÁËÓÃÒÔÌî³äµÄ×Ö·û£¬Ä¬ÈÏΪ¿Õ¸ñ
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expandtabs()µÄtabsize ²ÎÊýĬÈÏΪ8¡£ËüµÄ¹¦ÄÜÊǰÑ×Ö·û´®ÖеÄÖÆ±í·û£¨tab£©×ª»»ÎªÊʵ±ÊýÁ¿µÄ¿Õ¸ñ¡£
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strip([chars]),
lstrip([chars]),
rstrip([chars])
*strip()º¯Êý×åÓÃÒÔÈ¥³ý×Ö·û´®Á½¶ËµÄ¿Õ°×·û£¬¿Õ°×·ûÓÉstring.whitespace³£Á¿¶¨Òå¡£
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lower(),
upper(),
capitalize(),
swapcase(),
title()
title()º¯ÊýÊDZȽÏÌØ±ðµÄ£¬ËüµÄ¹¦ÄÜÊǽ«Ã¿Ò»¸öµ¥´ÊµÄÊ××Öĸ´óд£¬²¢½«µ¥´ÊÖеķÇÊ××Öĸת»»ÎªÐ¡Ð´£¨Ó¢ÎÄÎÄÕµıêÌâͨ³£ÊÇÕâÖÖ¸ñʽ£©¡£
>>> 'hello wORld!'.title()
'Hello World!'
ÒòΪtitle() º¯Êý²¢²»È¥³ý×Ö·û´®Á½¶ËµÄ¿Õ°×·ûÒ²²»»á°ÑÁ¬ÐøµÄ¿Õ°×·ûÌæ»»ÎªÒ»¸ö¿Õ¸ñ£¬ËùÒÔ½¨ÒéʹÓÃstring Ä£¿éÖеÄcapwords(s)º¯Êý£¬ËüÄܹ»È¥³ýÁ½¶ËµÄ¿Õ°×·û£¬ÔÙ½«Á¬ÐøµÄ¿Õ°×·ûÓÃÒ»¸ö¿Õ¸ñ´úÌæ¡£
>>> ' hello world!'.title()
' Hello World!'
>>> string.capwords(' hello world!')
'Hello World!'
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partition(sep),
rpartition(sep),
splitlines([keepends]),
split([sep [,maxsplit]]),
rsplit([sep[,maxsplit]])
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*partition()
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s.split() ºÍ s.split(‘ ‘)µÄ·µ»ØÖµ²»¾¡Ïàͬ
>>> ' hello world!'.split()
['hello', 'world!']
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