第十二周实验报告一

1. * 程序的版权和版本声明部分 
2. * Copyright (c) 2011, 烟台大学计算机学院学生 
3. * All rights reserved. 
4. * 文件名称： 
5. * 作者：李君凯 
6. * 完成日期： 2012年 5月 8日
7. * 版本号： 
8. *对任务及求解方法的描述部分

9. <span style="font-size:16px;">#include<iostream>   
   #include<string>   
   using namespace std;  
     
   class Student //（1）修改student类中各数据成员和成员函数的访问限定符，并观察发生的现象   
   {  
   public:   
       Student(int n,string nam,char s) ;  
       void show();  
       ~Student( ){ }   
   protected:   
       int num;  
       string name;  
       char sex ;   
   };  
     
   class Student1: public Student //（2）修改此处的继承方式，并观察发生的现象   
   {  
   public:   
       Student1(int n,string nam,char s,int a,string ad);  
       void show1( );  
       ~Student1( ){ }   
   private:   
       int age;   
       string addr;   
   };  
     
   Student::Student(int n,string nam,char s)   
   {  
       num=n;  
       name=nam;  
       sex=s;   
   }  
   void Student::show()  
   {  
       cout<<"num: "<<num<<endl;  
       cout<<"name: "<<name<<endl;  
       cout<<"sex: "<<sex<<endl<<endl;  
   }  
     
   Student1::Student1(int n,string nam,char s,int a,string ad):Student(n,nam,s)   
   {     
       age=a;   
       addr=ad;  
   }  
   void Student1::show1( )  
   {     
       cout<<"num: "<<num<<endl;  
       cout<<"name: "<<name<<endl;  
       cout<<"sex: "<<sex<<endl;  
       cout<<"age: "<<age<<endl;  
       cout<<"address: "<<addr<<endl<<endl;  
   }  
     
   int main( )  
   {  
       Student1 stud1(10010,"Wang-li",'f',19,"115 Beijing Road,Shanghai");  
       Student1 stud2(10011,"Zhang-fun",'m',21,"213 Shanghai Road,Beijing");  
       Student stud3(20010,"He-xin",'m');  
       stud1.show1( );   
       stud2.show( );   
       stud3.show( ); 
   	system("PAUSE");
       return 0;  
   }  
   </span>