Pres#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){ status=rest; maxSpeed=maxS; weight=w; currentSpeed=0;}void Vehicle::start(){ status=running; currentSpeed=1;}void Vehicle::stop(){ if (status==running) if(currentSpeed<5) { status=rest; currentSpeed=0; } else cout<<"车速太快！先减速再停车……"<<endl; else cout<<"车辆未启动！"<<endl;}void Vehicle::speed_up(){ if (status==running) if(currentSpeed<maxSpeed) ++currentSpeed; else cout<<"请不要超速行驶……"<<endl; else cout<<"车辆未启动！"<<endl;}void Vehicle::slow_down(){ if (status==running) if(currentSpeed>0) --currentSpeed; else cout<<"速度过低"<<endl; else cout<<"车辆未启动！"<<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); //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，停车后再上下车！"<<endl; } else { passengerNum+=p; if(passengerNum>seatNum) { passengerNum=seatNum; cout<<"涉嫌超员，已清理后达到满员！"<<endl; } else if (passengerNum<1) { passengerNum=1; cout<<"请司机不要离开岗位！"<<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<<"状态:"<<status<<'\t'; cout<<"车速："<<currentSpeed<<"/"<<"90"<<'\t'; cout<<"当前成员："<<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;}
下载可执行文件链接motorcar.exe.
