C++ 实验一：类与对象完整代码

代码：

一

#include <iostream>

#include <string>

using namespace std;

enum CDROM_Rank {P1=1,P2,P3,P4,P5,P6,P7};

class CDROM

{

private:

CDROM(const CDROM &CDROM);//拷贝函数

~CDROM();//析构函数

run();

stop();

setCDROM(int a,int b,float c);

out();//输出等级、频率、电压

};

CDROM::CDROM()

{

rank=P6;

rank=(CDROM_Rank)a;

frequency=b;

voltage=c;

cout<<"成功调用有参构造函数"<<endl;

}

CDROM::CDROM(const CDROM &CDROM)

{

rank=CDROM.rank;

frequency=2*CDROM.frequency;

voltage=3*CDROM.voltage;

CDROM::run()

{

cout<<"CDROM 开始运行！"<<endl;

}

CDROM::stop()

}

{

rank=(CDROM_Rank)a;

frequency=b;

voltage=c;

cout<<"使用 setCDROM 方法"<<endl;

}

CDROM::out()

{

switch(rank){

case 1:cout<<"等级：P1"<<endl;

break;

case 5:cout<<"等级：P5"<<endl;

break;

case 6:cout<<"等级：P6"<<endl;

break;

case 7:cout<<"等级：P7"<<endl;

break;

default:

}

}

int main()

{

CDROM a1;

int a,b;

float c;

cout<<"setCDROM 函数:请按顺序输入等级(1-7)、频率(MHz)、电压"<<endl;

cin>>a>>b>>c;

a1.setCDROM(a,b,c);

a1.run();

cout<<"有参构造函数：请按顺序输入等级(1-7)、频率(MHz)、电压"<<endl;

a2.stop();

cout<<"无参构造函数："<<endl;

CDROM a3;

a3.run();

a3.out();

a3.stop();

cout<<"拷贝（上一个 CDROM 对象）构造函数："<<endl;

a4.out();

using namespace std;

double start;//当日开盘价

double stop;//当日收盘价

public:

double daygrow;//当日涨幅

Stock(string name,int day,double max,double min,double start,double

};

Stock::Stock(string a,int b,double c,double d,double e,double f){

name=a;