Home Backend Development Python Tutorial Python字符串处理函数简明总结

Python字符串处理函数简明总结

Jun 06, 2016 am 11:24 AM
python String processing functions

返回被去除指定字符的字符串

默认去除空白字符

删除首尾字符:str.strip([char])
删除首字符:str.lstrip([char])
删除尾字符str.strip([char])

判断是否匹配首末字符

匹配成功返回True,否则返回False
匹配首字符:str.startswith(char[, start[, end]])
匹配末字符:str.endswith(char[, start[, end]])

查找字符,找到返回字符位置,否则返回-1

从字符串开头查找str.find(char[, start[, end]])
从字符串末端开始查找str.find(char[, start[, end]])

分解字符

str.split([sep [, maxsplit]])

连接字符

str.join(iterable)
“str”是连接字符,“iterable”是被连接的可迭代字符串

替换字符

str.replace(old, new [,count])
返回替换后的字符串,count标识替换的次数,默认所有的字符都被替换

按换行符分解字符串,返回行列表

str.splitlines([keepends])
结果不保留换行符,除非keepends为True。

大小写转换

大小写互换:str.swapace()
转换为大写:str.upper()
转换为小写:str.lower()

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