交作业
Topic source
发现只能消除一个,改用while循环消除多个空格
# -*- coding: utf-8 -*-
def trim(s):
while s[0] == ' ':
s = s[1:]
while s[-1] == ' ':
s = s[:-2]
return(s)
- 1
发现只能消除一个,改用while循环消除多个空格
# -*- coding: utf-8 -*-
def trim(s):
while s[0] == ' ':
s = s[1:]
while s[-1] == ' ':
s = s[:-2]
return(s)
rrrr的地盘
# -*- coding: utf-8 -*-
def trim(s):
if s[0] == ' ':
s = s[1:]
if s[-1] == ' ':
s = s[:-2]
return(s)