项目训练3

#pragma once
#include "Tire.h"
#include "Engine.h"
#include <sstream>
#include <iostream>
class Car
{
public:
  Car(const string &carBrand,const string &carVer,int carPrice,const string &engineBrand,float engineVer,const string &tireBrand="米其林");
  ~Car();
  Engine getEngin() const;
  const Tire* getTire(int i)const;
  string getBrand() const;
  string getVersion() const;
  int getPrice() const;
  int getMiles() const;
  string description() const;
private:
  Engine engine;
  Tire tires[4];
  string brand;//版本
  string version;//型号
  int price;
  int miles;//行驶里程数
};

#include "Car.h"
Car::~Car()
{
  cout << "_FUNCITON_" << endl;
}
Car::Car(const string& carBrand, const string& carVer, int carPrice, 
  const string& engineBrand,float engineVer, 
  const string& tireBrand)
  :engine(engineBrand,engineVer),
  tires{tireBrand,tireBrand,tireBrand,tireBrand}
{
  this->brand = carBrand;
  this->price = carPrice;
  this->version = carVer;
  this->miles = 0;
}
Engine Car::getEngin() const
{
  return engine;
}
const Tire* Car::getTire(int i) const
{
  if (i >= 1 && i <= 4)
  {
    return &tires[i];
  }
  return NULL;
}
string Car::getBrand() const
{
  return brand;
}
string Car::getVersion() const
{
  return version;
}
int Car::getPrice() const
{
  return price;
}
int Car::getMiles() const
{
  return miles;
}
string Car::description() const
{
  stringstream ret;
  ret << "汽车品牌:" << brand << "-" << version << "-$" << price
    << "/t/t引擎:" << engine.description()
    << "\t\t轮胎:" << tires[0].description();
  return ret.str();
}

#pragma once
#include <string>
#include <iostream>
using namespace std;
class Engine
{
public:
  Engine(const string& brand, float version);
  ~Engine();
  string description() const;
private:
  string brand;//发动机品牌
  float version;//发动机型号：x.x升
};

#include "Engine.h"
#include <sstream>
Engine::Engine(const string& brand, float version)
{
  this->brand = brand;
  this->version = version;
}
Engine::~Engine()
{
  cout << "_FUNCITON_" << endl;
}
string Engine::description() const
{
  stringstream ret;
  ret << "品牌:" << brand << "，型号:" << version;
  return ret.str();
}

#pragma once
#include <string>
#include <iostream>
using namespace std;
class Tire
{
public:
  Tire(const string& brand="米其林");
  ~Tire();
  string getBrand() const;
  float getPressure() const;
  string description() const;
private:
  string brand;//品牌
  float pressure;//胎压
};

#include "Tire.h"
#include <sstream>
Tire::Tire(const string& brand)
{
  this->brand = brand;
  this->pressure = 2.5;
}
Tire::~Tire()
{
  cout << "_FUNCITON_" << endl;
}
string Tire::getBrand() const
{
  return brand;
}
float Tire::getPressure() const
{
  return pressure;
}
string Tire::description() const
{
  stringstream ret;
  ret << "品牌:" << brand << "胎压:" << pressure;
  return ret.str();
}

#include <iostream>
#include "Car.h"
int main(void)
{
  {
    Car car("宝马", "x7", 950000, "宝马", 3.5);
    cout << car.description() << endl;
  };
  system("pause");
  return 0;
}