函数练习

20220625

#include<stdio.h>
//void无返回值
void Swap(int* pa, int* pb)
{
	int z = 0;
	z = *pa;
	*pa = *pb;
	*pb = z;

}
int main()
{
	int a = 10;
	int b = 20;

	printf("前 a=%d b=%d\n", a, b);
	Swap(&a, &b);
	printf("前 a=%d b=%d\n", a, b);

	return 0;
}