Python——String类型操作符

weixin_30595035

于 2019-05-15 14:20:00 发布

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文章标签： python

原文链接：http://www.cnblogs.com/LCharles/p/10869165.html

本文详细介绍了Python中处理字符串的各种方法，包括查找、替换、分割、连接等操作，以及如何进行大小写转换和去除空白字符。掌握这些技巧，将使你在处理文本数据时更加得心应手。

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Python has comprehensive support for processing strings

Method	Functionality
`s.find(t)`	index of first instance of string `t` inside `s` (`-1` if not found)
`s.rfind(t)`	index of last instance of string `t` inside `s` (`-1` if not found)
`s.index(t)`	like `s.find(t)` except it raises `ValueError` if not found
`s.rindex(t)`	like `s.rfind(t)` except it raises `ValueError` if not found
`s.join(text)`	combine the words of the text into a string using `s` as the glue
`s.split(t)`	split `s` into a list wherever a `t` is found (whitespace by default)
`s.splitlines()`	split `s` into a list of strings, one per line
`s.lower()`	a lowercased version of the string `s`
`s.upper()`	an uppercased version of the string `s`
`s.title()`	a titlecased version of the string `s`
`s.strip()`	a copy of `s` without leading or trailing whitespace
`s.replace(t, u)`	replace instances of `t` with `u` inside `s`