发个C++ 指针的例子

明次

//简单的指针程序
#include<iostream>
using namespace std;
int main()
{
    cout<<"这是一个通过指针指向来区别大小写的程序.";
    void sp(int *p1,int *p2);
    int a,b;
    int *pointer1,*pointer2;
    cout<<"请输入两个数:"<<endl;
    cin>>a>>b;
    pointer1=&a;
    pointer2=&b;
    cout<<"你输入的数是:"<<a<<" "<<b<<" "<<endl;
    if(a<b)
      sp(pointer1,pointer2);
    cout<<a<<" "<<b<<" "<<endl;
    cout<<*pointer1<<" "<<*pointer2<<endl;
    return 0;
}

void sp(int *p1,int *p2)
{
     int temp;
     temp=*p1;
     *p1=*p2;
     *p2=temp;
}