// C5_5.cpp : Defines the entry point for the console application.
// 指標變數的使用

#include "stdafx.h"
#include <iostream>
using namespace std;


int main(int argc, char* argv[])
{
   long* ptr1 = NULL;           // 指標宣告和初始化
   long data1 = 166, data2 = 88;

   ptr1 = &data1;             // 將位址存到指標
   *ptr1 += 20;                 // 改變指標所指的內容
   cout << "ptr1(位址) = " << ptr1 
	    << endl
        << "data1(內容) = " << data1
        << "   &data1(位址) = " << hex << &data1 << endl ;

   ptr1 = &data2;          //  改變指標所指的位址
   data1 = *ptr1/10;       //  改變指標所指的內容

   cout << endl
        << "data1(內容) = " << dec << data1
        << "   ptr1(位址) = " << hex << ptr1
        << "   *ptr1(內容) = " << dec << *ptr1;

   cout << endl;
	return 0;
}