实验5-3

实验5-3
定义一个车（vehicle）基类，具有MaxSpeed、Weight等成员变量，Run、Stop等成员函数，由此派生出自行车（bicycle）类、汽车（motorcar）类。

自行车类有高度（Height）等属性，汽车类有座位数（SeatNum）等属性。

自行车（bicycle）类、汽车（motorcar）类派生出摩托车（motorcycle）类。

在继承过程中注意把设置为虚基类。

程序体：
#include<iostream>
using namespace std;
class vehicle
{
public:
vehicle(){cout<<"构造vehicle类"<<endl;}
vehicle(float i,int j){MaxSpeed=i;Weight=j;cout<<"构造vehicle类"<<endl;}
~vehicle(){cout<<"析构vehicle类"<<endl;}
void Run(){cout<<"类run"<<endl;}
void Stop(){cout<<"类stop"<<endl;}
void disp1(){cout<<"vehicle MaxSpeed is "<<MaxSpeed<<"km/h"<<"\n"<<"vehicle Weight is "<<Weight<<"kg"<<endl;}
private:
float MaxSpeed;
int Weight;
};
class bicycle:virtual public vehicle
{
public:
bicycle(){cout<<"构造bicycle类"<<endl;}
bicycle(float x){Height=x;cout<<"构造bicycle类"<<endl;}
~bicycle(){cout<<"析构bicycle类"<<endl;}
void disp2(){cout<<"bicycle Height is "<<Height<<"m"<<endl;}
private:
float Height;
};
class motorcar:virtual public vehicle
{
public:
motorcar(){cout<<"构造motorcar类"<<endl;}
motorcar(int y){SeatNum=y;cout<<"构造motorcar类"<<endl;}
~motorcar(){cout<<"析构motorcar类"<<endl;}
void disp3(){cout<<"motorcar SeatNum is "<<SeatNum<<endl;}
private:
int SeatNum;
};
class motorcycle:public bicycle,public motorcar
{
public:
motorcycle(float i,int j,float x,int y):vehicle(i,j),bicycle(x),motorcar(y){ cout<<"构造motorcycle类"<<endl;}
~motorcycle(){cout<<"析构motorcycle类"<<endl;}
void disp(){disp1();disp2();disp3();}
};
int main()
{
motorcycle a(90,1200,0.9,4);
a.disp();
a.Run();
a.Stop();
return 0;
}。