从字符串中删除单词

Question

如果我有一个字符串，比如'the quick brown fox'，那么如何从原始字符串中删除连续的单词，比如“quick brown”来获得'the fox'？我尝试了strip()，但没有成功，我不太确定还能做什么。在

Answer 1

mystring.replace(" quick brown ", " ", 1)

Answer 2

您无法从原始字符串中删除单词。字符串是不可变的；请参见here：

"Strings and tuples are immutable sequence types: such objects cannot be modified once created."

使用^{}返回字符串的副本。在

Answer 3

使用str.replace()：

In [2]: strs='the quick brown fox'

In [3]: strs.replace('quick brown','')
Out[3]: 'the  fox'

In [4]: " ".join(strs.replace('quick brown','').split())
Out[4]: 'the fox'                          #single space between 'the' and 'fox'

help()在str.replace()：

^{pr2}$