删除空格并在字符串中为python制作全部小写

Question

如何从字符串中删除所有空格并在python中将所有字符设为小写？

此外,我可以像在JavaScript中一样将此操作添加到字符串原型中吗？

Answer 1

一个简单快速的答案怎么样？不map,没有for循环,......

>>> s = "Foo Bar " * 5
>>> s
'Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar '
>>> ''.join(s.split()).lower()
'foobarfoobarfoobarfoobarfoobar'
>>>

[Python 2.7.1]

>python -mtimeit -s"s='The quick brown Fox jumped over the lazy dogs'" "''.join(c.lower() for c in s if not c.isspace())"
100000 loops, best of 3: 11.7 usec per loop

>python27\python -mtimeit -s"s='The quick brown Fox jumped over the lazy dogs'" "''.join(  i.lower() for i  in s.split()  )"
100000 loops, best of 3: 3.11 usec per loop

>python27\python -mtimeit -s"s='The quick brown Fox jumped over the lazy dogs'" "''.join( map(str.lower, s.split() )  )"
100000 loops, best of 3: 2.43 usec per loop

>\python27\python -mtimeit -s"s='The quick brown Fox jumped over the lazy dogs'" "''.join(s.split()).lower()"
1000000 loops, best of 3: 1 usec per loop

Answer 2

''.join(c.lower() for c in s if not c.isspace())

不,Python不是Ruby.