2015.2.27摩托车继承自行车类和机动车类

#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{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且处在停车状态    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==0)    {        status=running;        currentSpeed=1;    }    else        cout<<"车辆正在运行中"<<endl;}void vehicle::stop(){    if(currentSpeed<5)    {        status=rest;        currentSpeed=0;    }    else        cout<<"请减速，再停车"<<endl;}void vehicle::speed_up(){    if(status==running)    {        if(currentSpeed<=maxSpeed)            ++currentSpeed;        else            cout<<"已达到最大速度"<<endl;    }    else        cout<<"请先启动"<<endl;}void vehicle::slow_down(){    if(currentSpeed>0)    {        --currentSpeed;        if(currentSpeed==0)            status=rest;    }    else        cout<<"速度已减为0"<<endl;}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):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):vehicle(maxS,w),seatNum(s),passengerNum(p) {};    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。};void motorcar::addPassenger(int p){    if(status==0)    {        if((passengerNum+p)>seatNum)            cout<<"超载了"<<endl;        else if((passengerNum+p)<1)            cout<<"车上至少要有一名司机哦"<<endl;        else            passengerNum+=p;    }    else        cout<<"停车后方可上下乘客"<<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):vehicle(maxS,w),bicycle(maxS,w,h),motorcar(maxS,w,s,p) {};    void show(); //显示摩托车的运行状态};void motorcycle::show(){    if(status==0)        cout<<"状态:"<<"泊车"<<'\t'<<"车速:"<<currentSpeed<<'/'<<maxSpeed<<'\t'<<"当前乘员:"<<passengerNum<<'/'<<seatNum<<endl;    else        cout<<"状态:"<<"行进"<<'\t'<<"车速:"<<currentSpeed<<'/'<<maxSpeed<<'\t'<<"当前乘员:"<<passengerNum<<'/'<<seatNum<<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();            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;}