摘要: 1、strip, lstrip, rstrip x = ' jiahuifeng ' print(x.strip(' ')) print(x.lstrip(' ')) print(x.rstrip(' ')) 2、lower ,upper x = 'jiahuifeng' print(x.lower 阅读全文
posted @ 2019-01-07 16:35 jiahuifeng 阅读(158) 评论(0) 推荐(0) 编辑