C语言交换两个数的值

#include<stdio.h>
int main()
{
//交换两个数的值
// 方法一 可读性最好
int a = 10;
int b = 11;
int temp ;
temp = a;
a = b;
b = temp;
printf("a = %d, b = %d\n",a, b);

//方法二
int c = 10;
int d = 11;
c = d - c;
d = d - c;
c = d + c;
printf("c = %d, d = %d\n",c, d);
// 方法三
int e = 10;
int f = 11;
e = e ^ f;
f = e ^ f;
e = e ^ f;
printf("e = %d, f = %d\n",e, f);
return 0;
}

a = 11, b = 10
c = 11, d = 10
e = 11, f = 10