#include<stdio.h>
void Swap(int a,int b);
int main()
{
int a,b;
printf("input a,b:");
scanf("%d,%d",&a,&b);
Swap(a,b);
printf("in main():a=%d,b=%d\n",a,b);
return 0;
}
void swap(int a,input b)
{
temp=a;
b=temp;
printf("in Swap():a=%d,b=%d\n",a,b);
}