#include <iostream>
#include<conio.h>
#include <windows.h>
using namespace std;
enum vehicleStaus {rest, running}; //車輛狀態:泊車、行進
class vehicle //車輛類,虛基類
{
protected:
int maxSpeed; //最大車速
int currentSpeed; //當前速度
int weight; //車重
vehicleStaus status; //rest-泊車狀態。running-行進狀態
public:
vehicle(int maxS, int w); //建構函式,初始時。當前速度總為0且處在停車
void start(); //由rest狀態到running, 初速為1
void stop(); //由running狀態到rest, 當前速度小於5時,才同意停車
void speed_up(); //加速,呼叫1次,速度加1
void slow_down(); //減速。呼叫1次,速度減1,速度為0時,停車
};
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<<"車輛已經行駛!"<<endl;
}
}
void vehicle::stop()
{
if(status==running)
if(currentSpeed<5)
{
status=rest;
currentSpeed=0;
}
else
{
cout<<"車速太快。無法停車!"<<endl;
}
else
{
cout<<"車輛沒有啟動。"<<endl;
}
}
void vehicle::speed_up()
{
if(status==running)
{
++currentSpeed;
}
else
{
cout<<"車輛未啟動!。!
"<<endl; } } void vehicle::slow_down() { if(status==running) { if(currentSpeed>0) --currentSpeed; } else { cout<<"車輛未啟動!
!!
"<<endl; } if(currentSpeed==0) { status=rest; } } class bicycle : virtual public vehicle //(1)自行車類的虛基類為車輛類 { protected: double height; //車高 public: bicycle(int maxS=10, int w=50, int h=0.7); //定義建構函式 }; bicycle::bicycle(int maxS, int w, int h):vehicle(maxS,w),height(h) {} class motorcar :virtual public vehicle //(2)機動車類的虛基類也為車輛類 { protected: int seatNum; //座位數 int passengerNum; //乘客人數 public: motorcar(int maxS=150, int w=1500, int s=5, int p=1); //定義建構函式 void addPassenger(int p=1); //新增搭載的乘客,超員要拒載,有人下車時。p為負數。當然車上乘客至少有1個(司機)。僅僅有車停穩後才幹上下客。
}; 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<<"車輛正在行駛,請停下車後再上下車!!
!
"<<endl; } else { passengerNum+=p; if(passengerNum>seatNum) { cout<<"超員!!!
"<<endl; } else if(passengerNum<1) { passengerNum=1; cout<<"司機不準下車!!
!
"<<endl; } } } class motorcycle: public bicycle,public motorcar//(3)摩托車類的基類為自行車類和機動車類 { public: motorcycle(int maxS=90, int w=100, int s=3, int p=1, int h=0.7);//定義建構函式 void show(); //顯示摩托車的執行狀態 }; 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<<"執行狀態:"<<endl; if(status==running) { cout<<"行進中"<<endl; } else { cout<<"泊車"<<endl; } cout<<"車速:"<<currentSpeed<<endl; cout<<"當前乘坐人數"<<passengerNum<<endl; } int main( ) { motorcycle m; bool end=false; while (!end) { cout<<"請操作:1-啟動 2-加速 3-減速 4-有人上車 5-有人下車 6-停車 0-結束"<<endl; char keydown= _getch(); //_getch()返回鍵盤上讀取的字元 switch(keydown) { case '1': cout<<"選中的操作是1-啟動\t"; m.start(); break; case '2': cout<<"選中的操作是2-加速\t"; m.speed_up(); break; case '3': cout<<"選中的操作是3-減速\t"; m.slow_down(); break; case '4': cout<<"選中的操作是4-有人上車\t"; m.addPassenger(1); break; case '5': cout<<"選中的操作是5-有人下車\t"; m.addPassenger(-1); break; case '6': cout<<"選中的操作是6-停車\t"; m.stop(); break; case '0': end=true; break; } m.show(); cout<<endl; Sleep(200); //要包括標頭檔案<windows.h> } return 0; }