标签:ret 三元 printf turn 临时 code 异或 return int
int main() { int a = 3; int b = 5; //int tmp = 0;//临时变量 printf("a=%d,b=%d\n", a, b); //tmp = a; //a = b; //b = tmp; //加减法(缺陷,溢出) //a = a + b; //b=a - b; //a = a - b; //异或的方法 a = a ^ b; b = a ^ b; a = a ^ b; printf("a=%d,b=%d\n", a, b); return 0; }
不是用第三元素交换
标签:ret 三元 printf turn 临时 code 异或 return int
原文地址:https://blog.51cto.com/15057883/2568155
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