Question

c++类与对象实验报告

声明一个简单的Computer类，有数据成员芯片(cpu)，内存(ram)，光驱(cdrom)等等，有两个公有函数run，stop。Cpu为CPU类的一个对象，ram，为RAM类的一个对象，cdrom为CDROM类的一个对象，声明并实现这个类

Answer 1

#include<iostream>
#include<string>
using namespace std;

class CPU
{
private:
double frequency;//主频多少 GHZ
public:
CPU(double frequency = 2.93);
~CPU();
};

CPU::CPU(double frequency)
{
this->frequency = frequency;
cout<<"买了一个主频为:"<<this->frequency<<"GHZ的CPU!"<<endl;
}
CPU::~CPU()
{

}

class RAM
{
private:
int memory;//内存多少 G
public:
RAM(int memory = 2);
~RAM();
};

RAM::RAM(int memory)
{
this->memory = memory;
cout<<"买了一根大小为:"<<this->memory<<"G的内存!"<<endl;
}

RAM::~RAM()
{

}

class CDROM
{
private:
string brand;//光驱什么牌子
public:
CDROM(string brand = "SAMSUNG");
~CDROM();
};

CDROM::CDROM(string brand)
{
this->brand = brand;
cout<<"买了一个牌子为:"<<this->brand<<"的光驱!"<<endl;
}

CDROM::~CDROM()
{

}

class Computer
{
private:
CPU cpu;
RAM ram;
CDROM cdrom;
public:
Computer(CPU iCpu,RAM iRam,CDROM iCdrom);
~Computer();
void run();
void stop();
};

Computer::Computer(CPU iCpu,RAM iRam,CDROM iCdrom):cpu(iCpu),ram(iRam),cdrom(iCdrom)
{
cout<<"电脑组装完成!"<<endl;
}

void Computer::run()
{
cout<<"电脑开机!"<<endl;
}

void Computer::stop()
{
cout<<"电脑关机!"<<endl;
}

Computer::~Computer()
{

}

void main (){

CPU cpu;
RAM ram;
CDROM cdrom;
Computer c(cpu,ram,cdrom);
c.run();
c.stop();

}