list0802.cpp

teach yourself C++ in 21 days 第五版

// Listing 8.2 Using pointers
#include <iostream>

typedef unsigned short int USHORT;

int main()
{

   using namespace std;

   USHORT myAge;         // a variable
   USHORT * pAge = 0;    // a pointer

   myAge = 5;

   cout << "myAge: " << myAge << endl;
   pAge = &myAge;     // assign address of myAge to pAge
   cout << "*pAge: " << *pAge << endl << endl;

   cout << "Setting *pAge = 7... " << endl;
   *pAge = 7;         // sets myAge to 7

   cout << "*pAge: " << *pAge << endl;
   cout << "myAge: " << myAge << endl << endl;

   cout << "Setting myAge = 9 " << endl;
   myAge = 9;

   cout << "myAge: " << myAge << endl;
   cout << "*pAge: " << *pAge << endl;
 
   return 0;
}