C++实例练习：交通工具（多重继承）

题目描述

1、建立如下的类继承结构：

1)一个车类CVehicle作为基类，具有max_speed、speed、weight等数据成员，display()等成员函数

2)从CVehicle类派生出自行车类CBicycle，添加属性：高度height

3)从CVehicle类派生出汽车类CMotocar，添加属性：座位数seat_num

4)从CBicycle和CMotocar派生出摩托车类CMotocycle

2、分别定义以上类的构造函数、输出函数display及其他函数（如需要）。

3、在主函数中定义各种类的对象，并测试之，通过对象调用display函数产生输出。

输入

第一行：最高速度 速度 重量 第二行：高度 第三行：座位数

输出

第一行：Vehicle: 第二行及以后各行：格式见Sample

样例输入

100 60 20
28
2

样例输出

Vehicle:
max_speed:100
speed:60
weight:20

Bicycle:
max_speed:100
speed:60
weight:20
height:28

Motocar:
max_speed:100
speed:60
weight:20
seat_num:2

Motocycle:
max_speed:100
speed:60
weight:20
height:28
seat_num:2

#include
using namespace std;

class CVehicle
{
     
protected:
	int max_speed;
	int speed;
	int weight;	
		
public:
	CVehicle(){
     }
	CVehicle(int ms, int s, int w):max_speed(ms),speed(s),weight(w){
     }
	void display()
	{
     
		cout<<"Vehicle:"<<endl;
		cout<<"max_speed:"<<max_speed<<endl;
		cout<<"speed:"<<speed<<endl;
		cout<<"weight:"<<weight<<endl;
		cout<<endl;
	}
};

class CBicycle:public CVehicle
{
     
protected:
	int height;
	
public:
	CBicycle(int ms, int s, int w, int h):CVehicle(ms,s,w),height(h){
     }
	void display()
	{
     
		cout<<"Bicycle:"<<endl;
		cout<<"max_speed:"<<max_speed<<endl;
		cout<<"speed:"<<speed<<endl;
		cout<<"weight:"<<weight<<endl;
		cout<<"height:"<<height<<endl;
		cout<<endl;
	}
};

class CMotocar:public CVehicle
{
     
protected:
	int seat_num;
	
public:
	CMotocar(int ms, int s, int w, int seat):CVehicle(ms,s,w){
     	seat_num = seat; }
	void display(){
     
		cout<<"Motocar:"<<endl;
		cout<<"max_speed:"<<max_speed<<endl;
		cout<<"speed:"<<speed<<endl;
		cout<<"weight:"<<weight<<endl;
		cout<<"seat_num:"<<seat_num<<endl;
		cout<<endl;
	}
};

class CMotocycle:public CBicycle, public CMotocar
{
     
public:
	CMotocycle(int ms, int s, int w, int h, int seat):CBicycle(ms,s,w,h),CMotocar(ms,s,w,seat){
     }
	void display(){
     
		cout<<"Motocycle:"<<endl;
		cout<<"max_speed:"<<CBicycle::max_speed<<endl;
		cout<<"speed:"<<CBicycle::speed<<endl;
		cout<<"weight:"<<CBicycle::weight<<endl;
		cout<<"height:"<<height<<endl;
		cout<<"seat_num:"<<seat_num<<endl;
		cout<<endl;
	}
};

int main()
{
     
	int max_speed,speed,weight,height,seat_num;
	cin>>max_speed>>speed>>weight;
	cin>>height;
	cin>>seat_num;
	CVehicle vehicle(max_speed,speed,weight);
	CBicycle bicycle(max_speed,speed,weight,height);
	CMotocar motocar(max_speed,speed,weight,seat_num);
	CMotocycle motocycle(max_speed,speed,weight,height,seat_num);
	vehicle.CVehicle::display();
	bicycle.CBicycle::display();
	motocar.CMotocar::display();
	motocycle.CMotocycle::display();
}

#include
#include
using namespace std;
class CVehicle
{
     
protected:
 int max_speed, speed, weight;
public:
 CVehicle(int ms, int s, int w) :max_speed(ms), speed(s), weight(w)
 {
     }
 ~CVehicle() {
     }
 void display()
 {
     
  cout << "Vehicle:" << endl;
  cout << "max_speed:" << max_speed << endl;
  cout << "speed:" << speed << endl;
  cout << "weight:" << weight << endl;
  cout << endl;
 }
};
class CBicycle :virtual public CVehicle
{
     
protected:
 int height;
public:
 CBicycle(int h, int ms, int s, int w) :height(h), CVehicle(ms, s, w)
 {
     }
 ~CBicycle() {
     }
 void display()
 {
     
  cout << "Bicycle:" << endl;
  cout << "max_speed:" << max_speed << endl;
  cout << "speed:" << speed << endl;
  cout << "weight:" << weight << endl;
  cout << "height:" << height << endl;
  cout << endl;
 }
};
class CMotocar :virtual public CVehicle
{
     
protected:
 int seat_num;
public:
 CMotocar(int sn, int ms, int s, int w) :seat_num(sn), CVehicle(ms, s, w)
 {
     }
 ~CMotocar() {
     }
 void display()
 {
     
  cout << "Motocar:" << endl;
  cout << "max_speed:" << max_speed << endl;
  cout << "speed:" << speed << endl;
  cout << "weight:" << weight << endl;
  cout << "seat_num:" << seat_num << endl;
  cout << endl;
 }
};
 
class CMotocycle :public CBicycle, public CMotocar
{
     
protected:
 
public:
 CMotocycle(int h, int sn, int ms, int s, int w) :CVehicle(ms, s, w), CBicycle(h, ms, s, w), CMotocar(sn, ms, s, w)
 {
     }
 ~CMotocycle() {
     }
 void display()
 {
     
  cout << "Motocycle:" << endl;
  cout << "max_speed:" << max_speed << endl;
  cout << "speed:" << speed << endl;
  cout << "weight:" << weight << endl;
  cout << "height:" << height << endl;
  cout << "seat_num:" << seat_num << endl;
 }
};
int main()
{
     
 int max_speed, speed, weight, height, seat_num;
 cin >> max_speed >> speed >> weight >> height >> seat_num;
 CMotocycle sb(max_speed, speed , weight,height,seat_num);
 sb.CVehicle::display();
 sb.CBicycle::display();
 sb.CMotocar::display();
 sb.CMotocycle::display();
 return 0;
 }