C++ 类继承与成员函数示例-优快云博客

本文链接：https://blog.youkuaiyun.com/u011101498/article/details/45846953

#include <iostream>
using namespace std;
class Student
{public:
  void get_value()
   {
   cin>>num>>name>>sex;
   }
  void display( )
    {
		cout<<"num: "<<num<<endl;
     	cout<<"name: "<<name<<endl;
     	cout<<"sex: "<<sex<<endl;
	}
 private :
   int num;
   char name[10];
   char sex;
};   

class Student1: public Student
 {
 	public:
   	void get_value_1()
    {
		get_value();
     	cin>>age>>addr;}
   		void display_1()
   {   
   		cout<<"age: "<<age<<endl; 
       	cout<<"address: "<<addr<<endl;}
	private:
       int age;
       char addr[30];
 };

int  main()
{
	Student1 stud1;
  	stud1.get_value_1();
  	stud1.display();
  	stud1.display_1();
  	return 0;
}

#include <iostream>
using namespace std;
class Student
{public:
  void get_value()
   {cin>>num>>name>>sex;}
  void display( )
    {cout<<"num: "<<num<<endl;
     cout<<"name: "<<name<<endl;
     cout<<"sex: "<<sex<<endl;}
 private :
   int num;
   char name[10];
   char sex;
};   

class Student1: private Student
 {public:
   void get_value_1()
    {get_value();
     cin>>age>>addr;}
   void display_1()
       {display();
       cout<<"age: "<<age<<endl;        
       cout<<"address: "<<addr<<endl;}   
  private:
       int age;
    char addr[30];
 };

int main()
 {Student1 stud1;
  stud1.get_value_1();
  stud1.display_1();
  return 0;
}

#include <iostream>
using namespace std;
class Student                        
{public:                             
  void get_value();
  void display( );
 protected :                         
    int num;
    char name[10];
    char sex;
};

void Student::get_value()
 {cin>>num>>name>>sex;}

void Student::display( )
 {cout<<"num: "<<num<<endl;
  cout<<"name: "<<name<<endl;
  cout<<"sex: "<<sex<<endl;
 }

class Student1: protected Student              
{public:
   void get_value_1();
   void display1( );
private:
   int age;                          
   char addr[30];
};

void Student1::get_value_1()
 {get_value();
  cin>>age>>addr;
 }
void Student1::display1( ) 
  {cout<<"num: "<<num<<endl;         
   cout<<"name: "<<name<<endl;       
   cout<<"sex: "<<sex<<endl;         
   cout<<"age: "<<age<<endl;         
   cout<<"address: "<<addr<<endl;    
  }

int main( )
 {Student1 stud1;                      
  stud1.get_value_1();               
  stud1.display1( );                  
  return 0;
 }

#include <iostream>
using namespace std;
class Student
{public:                             
  void get_value();
  void display( );
 protected :                         
    int num;
    char name[10];
    char sex;
};

void Student::get_value()
 {cin>>num>>name>>sex;}

void Student::display( )
 {cout<<"num: "<<num<<endl;
  cout<<"name: "<<name<<endl;
  cout<<"sex: "<<sex<<endl;
 }

class Student1: public Student              
{public:
   void get_value_1();
   void display1( );
 private:
   int age;                          
   char addr[30];
};

void Student1::get_value_1()
 {get_value();
  cin>>age>>addr;
 }
void Student1::display1( )
{
  	cout<<"num: "<<num<<endl;     
	cout<<"name: "<<name<<endl;       
   	cout<<"sex: "<<sex<<endl;         
   	cout<<"age: "<<age<<endl;         
   	cout<<"address: "<<addr<<endl; 
}

#include<string>
#include <iostream>
using namespace std;
class Teacher
 {public:
   Teacher(string nam,int a,char s,string tit,string ad,string t);
   void display();
  protected:
    string name;
    int age;
    char sex;
    string title;
    string addr;
    string tel;
};

Teacher::Teacher(string nam,int a,char s,string tit,string ad,string t):
     name(nam),age(a),sex(s),title(tit),addr(ad),tel(t){ }
void Teacher::display()
     {cout<<"name:"<<name<<endl;
      cout<<"age"<<age<<endl;
      cout<<"sex:"<<sex<<endl;
      cout<<"title:"<<title<<endl;
      cout<<"address:"<<addr<<endl;
      cout<<"tel:"<<tel<<endl;
      }

class Cadre
 {public:
Cadre(string nam,int a,char s,string p,string ad,string t);
   void display();
  protected:
   string name;
   int age;
   char sex;
   string post;
   string addr;
   string tel;
 };

Cadre::Cadre(string nam,int a,char s,string p,string ad,string t):
     name(nam),age(a),sex(s),post(p),addr(ad),tel(t){}

void Cadre::display()
    {cout<<"name:"<<name<<endl;
     cout<<"age:"<<age<<endl;
     cout<<"sex:"<<sex<<endl;
     cout<<"post:"<<post<<endl;
     cout<<"address:"<<addr<<endl;
     cout<<"tel:"<<tel<<endl;
    }

class Teacher_Cadre:public Teacher,public Cadre
 {public:
   Teacher_Cadre(string nam,int a,char s,string tit,string p,string ad,string t,float w);
   void show( );
  private:
    float wage;
 };

Teacher_Cadre::Teacher_Cadre(string nam,int a,char s,string t,string p,string ad,string tel,float w):
  Teacher(nam,a,s,t,ad,tel),Cadre(nam,a,s,p,ad,tel),wage(w) {}
void Teacher_Cadre::show( )
    {Teacher::display();
     cout<<"post:"<<Cadre::post<<endl;
     cout<<"wages:"<<wage<<endl;
     }

int main( )
 {Teacher_Cadre te_ca("ligang",30,'f',"prof.","tearchar","jxcjdx","123456789",5000);
  te_ca.show( );
  return 0;
}

10.

#include <iostream>
#include <cstring>
using namespace std;
class Teacher                                
 {public:
  Teacher(int,char [],char);               
    void display();                          
  private:
   int num;
   char name[20];
   char sex;
  };

Teacher::Teacher(int n,char nam[],char s)    
 {num=n;
  strcpy(name,nam);
  sex=s;
}

void Teacher::display()                      
 {cout<<"num:"<<num<<endl;
  cout<<"name:"<<name<<endl;
  cout<<"sex:"<<sex<<endl;
}

class BirthDate                               
 {public:
    BirthDate(int,int,int);                   
    void display();                           
    void change(int,int,int);                 
  private:
    int year;
    int month;
    int day;
};

BirthDate::BirthDate(int y,int m,int d)       
 {year=y;
  month=m;
  day=d;
 }

void BirthDate::display()                     
 {cout<<"birthday:"<<month<<"/"<<day<<"/"<<year<<endl;}

void BirthDate::change(int y,int m,int d)     
 {year=y;
  month=m;
  day=d;
 }
class Professor:public Teacher                         
 {public:
    Professor(int,char [],char,int,int,int,float);    
    void display();                                   
    void change(int,int,int);                         
   private:
    float area;
    BirthDate birthday;                          
 };

Professor::Professor(int n,char nam[20],char s,int y,int m,int d,float a):
 Teacher(n,nam,s),birthday(y,m,d),area(a){ }          

void Professor::display()                         
{
	Teacher::display();
 	birthday.display();
 	cout<<"area:"<<area<<endl;
}

void Professor::change(int y,int m,int d)          
{
 	birthday.change(y,m,d);
}

int main()
{
	Professor prof1(5000,"Li",'f',1980,10,1,200);   
	cout<<endl<<"original data:"<<endl;
	prof1.display();                                   
	cout<<endl<<"new data:"<<endl;
	prof1.change(1988,10,3);                             
	prof1.display();                                    
	return 0;
}

第五章习题汇总