python怎么去掉字符串所有空格

>>> a = " a b c "
>>> a.strip()
'a b c'

>>> a = " a b c "
>>> a.lstrip()
'a b c '

>>> a = " a b c "
>>> a.rstrip()
' a b c'

# replace主要用于字符串的替换replace(old, new, count)
>>> a = " a b c "
>>> a.replace(" ", "")
'abc'

# join为字符字符串合成传入一个字符串列表，split用于字符串分割可以按规则进行分割
>>> a = " a b c "
>>> b = a.split()  # 字符串按空格分割成列表
>>> b ['a', 'b', 'c']
>>> c = "".join(b) # 使用一个空字符串合成列表内容生成新的字符串
>>> c 'abc'
 
# 快捷用法
>>> a = " a b c "
>>> "".join(a.split())
'abc'