条件语句

1.

>>> a = 3
>>> b = 4
>>> c = a if a < b else b
>>> print(c)
3

2.

>>> m=4
>>> n=2
>>> ('n', 'm')[m > n]
'm'

实质是索引的使用

3.

>>> m = 4
>>> n = 5
>>> m > n and m or n
5

实质是与或运算