Python中assert的用法

Python中assert的用法

 

Python中assert用来判断语句的真假，如果为假的话将触发AssertionError错误

如：

>>> a = 23

>>> a

23

>>> assert a == 23

>>> a -=1

>>> a

22

>>> assert a == 23

Traceback (most recent call last):

  File "", line 1, in

    assert a == 23

AssertionError

>>>