counter.cpp

来自「本课程主要介绍面向对象程序设计的方法和c++语言的基本概念。以c++语言中的面向」· C++ 代码 · 共 34 行

// counter.cpp
// object represents a counter variable
#include <iostream>
using namespace std;
////////////////////////////////////////////////////////////////
class Counter
   {
   private:
      unsigned int count;                  //count
   public:
      Counter() : count(0)                 //constructor
         { /*empty body*/ } 
      void inc_count()                     //increment count
         { count++; }
      int get_count()                      //return count
         { return count; }
   };
////////////////////////////////////////////////////////////////
int main()
   {
   Counter c1, c2;                     //define and initialize

   cout << "\nc1=" << c1.get_count();  //display
   cout << "\nc2=" << c2.get_count();

   c1.inc_count();                     //increment c1
   c2.inc_count();                     //increment c2
   c2.inc_count();                     //increment c2

   cout << "\nc1=" << c1.get_count();  //display again
   cout << "\nc2=" << c2.get_count();
   cout << endl;
   return 0;
   }