Python去除字符串兩端空格的方法

 　　這篇文章主要介紹了Python去除字符串兩端空格的方法,本文主要講解了string.lstrip、string.rstrip、string.strip等函數的運用,需要的朋友可以參考下

　　目的

　　獲得一個首尾不含多余空格的字符串

　　方法

　　可以使用字符串的以下方法處理：

　　string.lstrip(s[, chars])

　　Return a copy of the string with leading characters removed. If chars is omitted or None, whitespace characters are removed. If given and not None, chars must be a string; the characters in the string will be stripped from the beginning of the string this method is called on.

　　string.rstrip(s[, chars])

　　Return a copy of the string with trailing characters removed. If chars is omitted or None, whitespace characters are removed. If given and not None, chars must be a string; the characters in the string will be stripped from the end of the string this method is called on.

　　string.strip(s[, chars])

　　Return a copy of the string with leading and trailing characters removed. If chars is omitted or None, whitespace characters are removed. If given and not None, chars must be a string; the characters in the string will be stripped from the both ends of the string this method is called on.

　　具體的效果如下：

　　 代碼如下:

　　In [10]: x=' Hi,Jack! '

　　In [11]: print '|',x.lstrip(),'|',x.rstrip(),'|',x.strip(),'|'

　　| Hi,Jack! | Hi,Jack! | Hi,Jack! |

　　其中提供的參數chars用來刪除特定的符號，注意空格並沒有被移除，例如：

　　 代碼如下:

　　In [12]: x='yxyxyxxxyy Hello xyxyxyy'

　　In [13]: print x.strip('xy')

　　Hello