Python/表达式

布尔表达式：

a = 6 b = 7 c = 42 print (1, a == 6) print (2, a == 7) print (3, a == 6 and b == 7) print (4, a == 7 and b == 7) print (5, not a == 7 and b == 7) print (6, a == 7 or b == 7) print (7, a == 7 or b == 6) print (8, not (a == 7 and b == 6)) print (9, not a == 7 and b == 6) 

输出：

1 True 2 False 3 True 4 False 5 True 6 True 7 False 8 True 9 False