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center(width[, fillchar]) ,
ljust(width[, fillchar]),
rjust(width[, fillchar]),
zfill(width),
expandtabs([tabsize])
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strip([chars]),
lstrip([chars]),
rstrip([chars])
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lower(),
upper(),
capitalize(),
swapcase(),
title()
title()º¯ÊýÊDZȽÏÌرðµÄ£¬ËüµÄ¹¦ÄÜÊǽ«Ã¿Ò»¸öµ¥´ÊµÄÊ××Öĸ´óд£¬²¢½«µ¥´ÊÖеķÇÊ××Öĸת»»ÎªÐ¡Ð´£¨Ó¢ÎÄÎÄÕµıêÌâͨ³£ÊÇÕâÖÖ¸ñʽ£©¡£
>>> 'hello wORld!'.title()
'Hello World!'
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>>> ' 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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s.split() ºÍ s.split(‘ ‘)µÄ·µ»ØÖµ²»¾¡Ïàͬ
>>> ' hello world!'.split()
['hello', 'world!']
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ipath = "e:/software/²âÊÔ.txt"
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