#include <stdio.h>int main()
{int a = 0;int b = 0;printf("请输入两个整数： ");scanf_s("%d %d", &a, &b);printf("交换前，a = %d，b = %d\n", a, b);int c = a;a = b;b = c;printf("交换后，a = %d，b = %d\n", a, b);system("pause");return 0;
}