#include <stdio.h>
#include <stdlib.h>
void  Swap(int *x,int *y);
main()
{
    int a,b;
    printf("Please enter a,b:");
    scanf("%d,%d",&a,&b);
    printf("Before Swap: a=%d,b=%d\n",a,b);
    Swap(&a,&b);   /*调用函数Swap实现a与b值的交换*/
    printf("After Swap: a=%d,b=%d\n",a,b);                                                                                  [])
}
void  Swap(int *x,int *y)
{
    int  temp;
    temp=*x;
    *x=*y;
    *y=temp;
}