目的
获得一个首尾不含多余空格的字符串
可以使用字符串的以下方法处理:
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,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,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.
具体的效果如下:
In [10]: x=' Hi,Jack! '
In [11]: print '|',x.lstrip(),'|',x.rstrip(),x.strip(),'|'
| Hi,Jack! | Hi,Jack! | Hi,Jack! |
其中提供的参数chars用来删除特定的符号,注意空格并没有被移除,例如:
In [12]: x='yxyxyxxxyy Hello xyxyxyy'
In [13]: print x.strip('xy')
Hello
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。