炫耀下今天自己完成的程序11

来源：互联网发布：艾丁格柏龙知乎编辑：程序博客网时间：2024/04/30 04:59

#include<iostream.h>
#include<string.h>
class Device
{
    int Did;
char *Dname;
char Dmaker[10];
double Dprice;
int Dstock;
public:

Device(int id,char name[10],char maker[10],double price,int stock)
{
  Dname=new char[10];
  Did=id;strcpy(Dname,name);strcpy(Dmaker,maker);Dprice=price;Dstock=stock;
  Dvalue=Dvalue+Dprice*Dstock;
}
  Device(Device &d)
{
  Dname=new char[10];
  Did=d.Did;strcpy(Dname,d.Dname);strcpy(Dmaker,d.Dmaker);Dprice=d.Dprice;Dstock=d.Dstock;
  Dvalue=Dvalue+d.Dprice*d.Dstock;
}
~Device(){delete Dname;}

static double Dvalue;

    void output()
{
  cout<<"编号："<<Did<<"设备："<<Dname<<"厂商:"<<Dmaker<<"单价"<<Dprice<<"数量"<<Dstock<<endl;
}

   void setvalue(int id,char name[10],char maker[10],double price,int stock)
{
    Dvalue=Dvalue-Dprice*Dstock;
    Dname=new char[10];
    Did=id;strcpy(Dname,name);strcpy(Dmaker,maker);Dprice=price;Dstock=stock;
       Dvalue=Dvalue+Dprice*Dstock;

}

static void songz()
{cout<<"设备总价值是："<<Dvalue<<endl;}
};
double Device::Dvalue=0;
void main()
{

Device d1(1001,"computer","lenovo",4000,20);
Device d2(d1);
d1.output();
    d2.output();
Device::songz();

cout<<"价格和数量修改后："<<endl;
    d1.setvalue(1002,"computer","susu",4000,10);
     d1.songz();

}