#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
{
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)
{
maxSpeed=maxS,weight=w;
currentSpeed=0,status=rest;
} //構造函數,初始時,當前速度總爲0且處在停車狀態
void start()
{
if(status==running)
{
cout<<"車已經行駛"<<endl;
return;
}
currentSpeed=1,status=running;
} //由rest狀態到running, 初速爲1
void stop()
{
if(currentSpeed>=5)
{
cout<<"車輛速度太快,請減速"<<endl;
return;
}
currentSpeed=0,status=rest;
} //由running狀態到rest, 當前速度小於5時,才允許停車
void speed_up()
{
if(currentSpeed>=maxSpeed)
{
cout<<"請不要超速行駛"<<endl;
return;
}
if(status==rest)
{
cout<<"車輛未行始"<<endl;
return;
}
currentSpeed++;
} //加速,調用1次,速度加1
void slow_down()
{
if(currentSpeed<=0)
{
cout<<"車輛未啓動"<<endl;
return;
}
currentSpeed--;
if(currentSpeed==0)
{
status==rest;
return;
}
} //減速,調用1次,速度減1,速度爲0時,停車
};
class bicycle :virtual public vehicle//(1)自行車類的虛基類爲車輛類
{
protected:
double height; //車高
public:
bicycle(int maxS=10, int w=50, int h=0.7); //定義構造函數
};
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爲車輛類
{
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); //定義構造函數
void addPassenger(int p=1); //增加搭載的乘客,超員要拒載,有人下車時,p爲負數。當然車上乘客至少有1個(司機)。只有車停穩後才能上下客。
};
motorcar::motorcar (int maxS, int w, int s, int p):vehicle(maxS,w)
{
seatNum=s,passengerNum=p;
}
void motorcar::addPassenger(int p)
{
if (p > 0)
{
if (status == running)
{
cout << "車輛正在行駛,停車後再上下車!" << endl;
return;
}
if (passengerNum >= seatNum)
{
cout << "涉嫌超員,已清理後達到滿員!" << endl;
return;
}
passengerNum++;
}
else
{
if (passengerNum <= 1)
{
cout << "請司機不要離開崗位!" << endl;
return;
}
passengerNum--;
}
}
class motorcycle: public bicycle,public motorcar//(3)摩托車類的基類爲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);//定義構造函數
void show()
{
cout << "狀態:" << (status == rest? "泊車。":"行進。") <<'\t'<< "車速:" <<currentSpeed<<"/"<<maxSpeed <<'\t'<< "當前成員:" <<passengerNum<<"/"<<seatNum << endl;
} //顯示摩托車的運行狀態
};
motorcycle::motorcycle(int maxS, int w, int s, int p, int h):bicycle (maxS,w,h),motorcar(maxS,w,s,p),vehicle(maxS,w)
{}
int main( )
{
motorcycle m;
bool end=false;
while (!end)
{
cout<<"請操作:1-啓動 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符
switch(keydown)
{
case '1':
cout<<"選中的操作是1-啓動\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();
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); //要包含頭文件<windows.h>
}
return 0;
}
運行結果