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第十二周实验报告3

2012-05-09 19:51 393 查看
#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
};

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
};

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);   //搭载乘客,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)。上下车时要保证安全……
};

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
};

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,应包含头文件<conio.h>
switch(keydown)
{
case '1':
cout<<"操作(启动)\t"; m.start(); break;
case '2':
cout<<"操作(加速)\t"; m.speed_up(); break;
case '3':
cout<<"操作(减速)\t"; m.slow_down(); break;
case '4':
cout<<"操作(有人上车)\t"; m.addPassenger(); break;
case '5':
cout<<"操作(有人下车)\t"; m.addPassenger(-1); break;
case '6':
cout<<"操作(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>
}
system("pause");
return 0;
}
vehicle::vehicle(int maxS, int w)
{
maxSpeed = maxS;
weight = w;
currentSpeed = 0;
status = rest;
}

void vehicle::start()
{
if(status == rest)
{
status = running;
currentSpeed = 1;

cout << "车速为:" << currentSpeed << endl;
}
else
{
cout << "车辆已经启动!无需再次启动!" << endl;
}
}

void vehicle::stop()
{
if(currentSpeed < 5)
{
status = rest;
currentSpeed = 0;

cout << "车速为:" << currentSpeed << endl;
}
else
{
cout << "高速行驶!禁止停车!" << endl;
}
}

void vehicle::speed_up()
{
if(currentSpeed < maxSpeed)
{
++currentSpeed;

status = running;

cout << "车速为:" << currentSpeed << endl;
}
else
{
cout << "已经达到最高车速!禁止加速!" << endl;
}
}

void vehicle::slow_down()
{
if(currentSpeed > 0)
{
--currentSpeed;

cout << "车速为:" << currentSpeed << endl;

if(currentSpeed == 0)
{
status = rest;
}
}
else
{
cout << "当前车速为0,已停车!禁止减速!" << endl;

status = rest;
}
}

bicycle::bicycle(int maxS, int w, int h):vehicle(maxS, w)
{
height = h;
}

motorcar::motorcar(int maxS, int w, int s, int p):vehicle(maxS, w)
{
seatNum = s;
passengerNum = p;
}

void motorcar::addPassenger(int p)   //搭载乘客,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)。上下车时要保证安全
{
if(p < 0 && passengerNum > 1 && status == rest)
{
--passengerNum;

cout << "当前车内人数:" << passengerNum << endl;
}
else if(passengerNum >= seatNum && p > 0 && status == rest)
{
cout << "车辆超载!禁止搭载乘客!" << endl;
}
else if(passengerNum <= 1 && p < 0 && status == rest)
{
cout << "已达到最低人数!除司机外无乘客!" << endl;
}
else if(status == running && p < 0)
{
cout << "车辆正在行驶!为保证安全,禁止乘客下车!" << endl;
}
else if(status == running && p > 0)
{
cout << "车辆正在行驶!为保证安全,禁止搭载乘客!" << endl;
}
else
{
++passengerNum;

cout << "当前车内人数:" << passengerNum << endl;
}

cout << "车速为:" << currentSpeed << endl;
}

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 << "当前车辆状态: ";

if(status == rest)
{
cout << "停车" << endl;
}
else
{
cout << "行驶" << endl;
}
}

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

操作(启动)      车速为:1

当前车辆状态: 行驶

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

操作(加速)      车速为:2

当前车辆状态: 行驶

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

操作(减速)      车速为:1

当前车辆状态: 行驶

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

操作(有人上车)  车辆正在行驶!为保证安全,禁止搭载乘客!

车速为:1

当前车辆状态: 行驶

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

操作(有人下车)  车辆正在行驶!为保证安全,禁止乘客下车!

车速为:1

当前车辆状态: 行驶

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
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