指针的运算

#include <iostream>

using namespace std;

int main()
{
//声明数组、变量和指针变量
int a[] = { 1,2,3,4,5,6 };
int ip1, ip2;
//测试指针的赋值运算
ip1 = a;
ip2 = ip1;
cout << "ip1=" << (ip1) << endl;
cout << "ip2=" << (ip2) << endl;

//测试指针的自增自减运算和组合运算
ip1++;
ip2 += 4;
cout << "*ip1=" << (*ip1) << endl;
cout << "*ip2=" << (*ip2) << endl;
 
 
//测试指针变量之间的关系运算
int n = ip2 > ip1;
cout << "ip2 >ip1 = " << n << endl;
cout << "ip2!= NULL = " << (ip2 != NULL) << endl;
 
 
//指针变量之间的减法
n = ip2 - ip1;
cout << "ip2-ip1 = " << n << endl;
return 0;

}