TypeError: '<' not supported between instances of 'str' and 'int'

Posted 2020-11-01 邓戈麟

 

<不支持str实例和int实例之间的对比

 

birth是str类型

2000是int类型

所以无法对比，报错

 

1 birth = input(‘birth: ‘)
2 if birth < 2000:
3     print(‘00前‘)
4 else:
5     print(‘00后‘)

 

修改为：

 

1 s = input(‘birth: ‘)
2 birth = int(s)
3 if birth < 2000:
4     print(‘00前‘)
5 else:
6     print(‘00后‘)