a = 18 b = 30 temp = a a = b b = temp
a = 18 b = 30 a, b = b, a
a = 18 b = 30 a = a + b # a = 48 b = a - b # b = 18 a = a - b # a = 30
python中一个数连续异或另一个数的结果还是这个数
a = 18 b = 30 a = b ^ a ^ a b = a ^ b ^ b
牛客博客，记录你的成长
京公网安备 11010502036488号