第2次实验.cpp

数据抽象（使用类和对象设计回应程序） 实验内容描述： 1． 测试程序 假设类名为Welcome

#include <string.h>
#include<stdio.h>
#include <iostream.h>
class Welcome
{
private:
	 char string[50];
  public:
      Welcome();
      Welcome(const Welcome &);
      char* Get();
       void talk();
       void Set(char *);
       void Display();
        ~Welcome();
};

char*  Welcome::Get()
{
  return string;

}
void Welcome::Display()
 {
   int n;
    n=3;
  }
void Welcome::Set(char* bar)
{
   strcpy(string,bar);
}

void Welcome::talk()
  { 
	while(strcmp(string,"OK")!=0)
	{
	
	
       gets(string);
		 
         if(strcmp(string,"OK")!=0)
		 {  
		 
	       cout<<string<<endl;
		 }
         
	}
	
   
   cout<<"All right!"<<endl;
   this->~Welcome();
   cout<<"OK"<<endl;
}
Welcome::Welcome()
{   
       
		string[50]='\0';//使字符串为空
	strcpy(string,"Welcome!");

}

Welcome::Welcome(const Welcome &we)
{
	
	      
		string[50]='\0';
	strcpy(string,"Welcome!");
        cout<<string<<endl;

}

Welcome::~Welcome()
{
  cout<<"Goodbye!"<<endl;
}
void main()
{       
        Welcome we;
	Welcome you(we);
	you.Display();
	
	you.Set( "Thank you.");
	cout<<you.Get()<<endl;
	you.talk();
	you.Display();
     
}