Python in 语句

qiuyouzhi

Python in 语句

语法：

sth in sth

例子：

>>> a = 'q'
>>> b = 'qiuyouzhi'
>>> a in b
True
>>> # b 里面有 a, 所以为True
>>> a = 'qiuyou'
>>> a in b
True
>>> # 可以多个字符匹配
>>> a = 5
>>> b = 10
>>> a in b
Traceback (most recent call last):
  File "<pyshell#13>", line 1, in <module>
    a in b
TypeError: argument of type 'int' is not iterable
>>> # 只能字符串比较