不允许创建临时变量，交换两个数的内容

不允许创建临时变量，交换两个数的内容#include <stdio.h>int main(){int a = 10;int b = 20;a = a ^ b;b = a ^ b;a = a ^ b;printf("a= %d  b = %d\n", a,b);return 0;}