指针的简单比较

#include<stdio.h>
void Jiaohuanzhi1(int a,int b);
void Jiaohuanzhi2(int *x,int *y);
int main()
{
	/*int a,b,*x,*y;
	printf("请输入a,b的值:");
	scanf("%d %d",&a,&b);
	x=&a;
	y=&b;
	Jiaohuanzhi1(a,b);
	printf("a=%d,b=%d\n",a,b);
	Jiaohuanzhi2(x,y);
	printf("a=%d,b=%d\n",a,b);
	return 0;*/
	int a,b;
	scanf("%d %d",&a,&b);
	Jiaohuanzhi1(a,b);
		printf("a=%d,b=%d\n",a,b);
	Jiaohuanzhi2(&a,&b);
		printf("a=%d,b=%d\n",a,b);
	return 0;

}
void Jiaohuanzhi1(int a,int b)
{
	int temp;
	temp=a;
	a=b;
	b=temp;
}
void Jiaohuanzhi2(int *x,int *y)
{
	int temp;
	temp=*x;
	*x=*y;
	*y=temp;
}