c语言之Swap函数的初次运用

#include <stdio.h>
void Swap(int *pa, int *pb)//void函数为空函数，不需要返回值
{
	int tem = 0;
	tem = *pa;
	*pa = *pb;
    *pb= tem;
}
int main()
{
	int a = 10;
    int  b = 20;
	Swap(&a,&b);
	printf("a=%d b=%d", a, b);
	return 0;
}

输出结果：