第12周实验报告3

/* (程序头部注释开始)      * 程序的版权和版本声明部分      * Copyright (c) 2011, 烟台大学计算机学院学生       * All rights reserved.      * 文件名称：开车?                                  * 作    者：张旭                                    * 完成日期：  2012   年   5   月    8  日      * 版 本 号：略                 * 对任务及求解方法的描述部分      * 输入描述：略       * 问题描述：略       * 程序输出：略       * 程序头部的注释结束      */  #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 = 90, int w = 50){currentSpeed = 0; maxSpeed = maxS; weight = w;status = rest;} //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1void 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1void 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) :vehicle(maxS, w), height (h) {}   //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) : vehicle(maxS, w), seatNum (s), passengerNum (p) {} //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) : vehicle(maxS, w), motorcar(maxS, w, s, p), bicycle(maxS, w, h) {} //定义构造函数void show(); //显示摩托车的运行状态};void vehicle::start(){if (status == running){cout << "已启动.........." <<endl;return;}status = running;currentSpeed = 1;}void vehicle::speed_up(){if (currentSpeed == maxSpeed){cout << "已达最大速度。" << endl;return;}if (status != running){cout << "车辆未启动..........." << endl;return;}++currentSpeed;}void vehicle::slow_down(){if (currentSpeed == 0){return;}--currentSpeed;if (currentSpeed == 0){status = rest;}}void vehicle::stop(){if (currentSpeed < 5){status = rest;currentSpeed = 0;}else{cout << "车速太快，先减速，再停车....." << endl;}}void motorcar::addPassenger(int p){if (currentSpeed > 4){cout << "车辆正在行驶，请减速......" << endl;return;}if (seatNum  == passengerNum && p > 0){cout << "人满了，别挤了......" << endl;return;}if (passengerNum == 1 && p < 0){cout << "没乘客了,这是司机......." << endl;return;}passengerNum += p;}void motorcycle::show(){cout << "状态：";if (status == running)cout << "行驶；\t";elsecout << "停止；\t";cout << "车速:" << currentSpeed << '/' << maxSpeed << '\t';cout << "乘客:" << passengerNum << '/' << seatNum << '\t';}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;}