直接贴你的题目比较好，用机器翻译更看不懂了。

 #include <stdio.h>
void s(int *a,int *b)
{
    int t = *a;
    *a=*b;
    *b=t;
}
int main()
{
    printf("enter 2 integers:\n");
    int a; int b;
    scanf("%d %d", &a, &b);
    printf("you entered\n%d,%d\n",a,b);
    s(&a,&b);
    printf("after swapping\n%d,%d\n",a,b);
}

 #include <iostream> 
using namespace std;
void swap(int *a,int *b){
    int temp=*a;
    *a=*b;
    *b=temp;
}
int main(){
    cout<<"enter 2 integers"<<endl;
    int a,b;
    cin>>a>>b;
    cout<<"you entered"<<endl;
    cout<<a<<","<<b<<endl;
    cout<<"after swapping"<<endl;
    swap(&a,&b);
    cout<<a<<","<<b<<endl;

}

enter 2 integers:
2 3
you entered
2,3
after swapping
3,2
Press any key to continue