#include <iostream>
#include<conio.h>
#include <windows.h>
using namespace std;
enum vehicleStaus {rest, running}; //车辆状态：泊车、行进
class vehicle //车辆类,虚基类
{
protected:
int maxSpeed; //最大车速
int currentSpeed; //当前速度
int weight; //车重
vehicleStaus status; //rest-泊车状态；running-行进状态
public:
vehicle(int maxS, int w); //构造函数，初始时，当前速度总为0且处在停车
void start(); //由rest状态到running, 初速为1
void stop(); //由running状态到rest, 当前速度小于5时，才允许停车
void speed_up(); //加速，调用1次，速度加1
void slow_down(); //减速，调用1次，速度减1，速度为0时，停车
};
vehicle::vehicle(int maxS, int w)
{
maxSpeed=maxS;
currentSpeed=0;
weight=w;
status=rest;
}
void vehicle::start()
{
if(status==rest)
{
status=running;
currentSpeed=1;
}
else
{
cout<<"车辆已经行驶!"<<endl;
}
}
void vehicle::stop()
{
if(status==running)
if(currentSpeed<5)
{
status=rest;
currentSpeed=0;
}
else
{
cout<<"车速太快，无法停车!"<<endl;
}
else
{
cout<<"车辆没有启动！"<<endl;
}
}
void vehicle::speed_up()
{
if(status==running)
{
++currentSpeed;
}
else
{
cout<<"车辆未启动！！！"<<endl;
}
}
void vehicle::slow_down()
{
if(status==running)
{
if(currentSpeed>0)
--currentSpeed;
}
else
{
cout<<"车辆未启动！！！"<<endl;
}
if(currentSpeed==0)
{
status=rest;
}
}
class bicycle : virtual public vehicle //（1）自行车类的虚基类为车辆类
{
protected:
double height; //车高
public:
bicycle(int maxS=10, int w=50, int h=0.7); //定义构造函数
};
bicycle::bicycle(int maxS, int w, int h):vehicle(maxS,w),height(h) {}
class motorcar :virtual public vehicle //（2）机动车类的虚基类也为车辆类
{
protected:
int seatNum; //座位数
int passengerNum; //乘客人数
public:
motorcar(int maxS=150, int w=1500, int s=5, int p=1); //定义构造函数
void addPassenger(int p=1); //增加搭载的乘客，超员要拒载，有人下车时，p为负数。当然车上乘客至少有1个（司机）。只有车停稳后才能上下客。
};
motorcar::motorcar(int maxS, int w, int s, int p):vehicle(maxS,w),seatNum(s),passengerNum(p) {}
void motorcar::addPassenger(int p )
{
if(status==running)
{
cout<<"车辆正在行驶，请停下车后再上下车！！！"<<endl;
}
else
{
passengerNum+=p;
if(passengerNum>seatNum)
{
cout<<"超员！！！"<<endl;
}
else if(passengerNum<1)
{
passengerNum=1;
cout<<"司机不准下车！！！"<<endl;
}
}
}
class motorcycle: public bicycle,public motorcar//（3）摩托车类的基类为自行车类和机动车类
{
public:
motorcycle(int maxS=90, int w=100, int s=3, int p=1, int h=0.7);//定义构造函数
void show(); //显示摩托车的运行状态
};
motorcycle::motorcycle(int maxS, int w, int s , int p, int h):vehicle(maxS,w),bicycle(maxS,w,h),motorcar(maxS,w,s,p) {}
void motorcycle::show()
{
cout<<"运行状态："<<endl;
if(status==running)
{
cout<<"行进中"<<endl;
}
else
{
cout<<"泊车"<<endl;
}
cout<<"车速:"<<currentSpeed<<endl;
cout<<"当前乘坐人数"<<passengerNum<<endl;
}
int main( )
{
motorcycle m;
bool end=false;
while (!end)
{
cout<<"请操作：1-启动 2-加速 3-减速 4-有人上车 5-有人下车 6-停车 0-结束"<<endl;
char keydown= _getch(); //_getch()返回键盘上读取的字符
switch(keydown)
{
case ‘1‘:
cout<<"选中的操作是1-启动\t";
m.start();
break;
case ‘2‘:
cout<<"选中的操作是2-加速\t";
m.speed_up();
break;
case ‘3‘:
cout<<"选中的操作是3-减速\t";
m.slow_down();
break;
case ‘4‘:
cout<<"选中的操作是4-有人上车\t";
m.addPassenger(1);
break;
case ‘5‘:
cout<<"选中的操作是5-有人下车\t";
m.addPassenger(-1);
break;
case ‘6‘:
cout<<"选中的操作是6-停车\t";
m.stop();
break;
case ‘0‘:
end=true;
break;
}
m.show();
cout<<endl;
Sleep(200); //要包含头文件<windows.h>
}
return 0;
}
第十二周项目3-摩托车继承自行车和电动车,布布扣,bubuko.com
原文地址：http://blog.csdn.net/u012390928/article/details/25711515
