2.定义一个简单的Computer类,有数据成员芯片(cpu)、内存(ram)、光驱(cdrom)等等,有两个公有成员函数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,定义并实现这个类。
#include <iostream>
using namespace std;
enum CPU_Rank {P1=1,P2,P3,P4,P5,P6,P7
};
class CPU {
public:
CPU(CPU_Rank newrank=P1,int newfrequency=0,float newvoltage=0.0)
:rank(newrank),frequency(newfrequency),voltage(newvoltage) {
cout<<"成功构造了一个CPU!"<<endl;
cout<<"等级:"<<rank<<endl;
cout<<"频率:"<<frequency<<endl;
cout<<"电压:" <<voltage<<endl;
}
void run();
void stop();
~CPU() {
cout<<"成功析构了一个CPU!"<<endl;
}
private:
CPU_Rank rank;
int frequency;
float voltage;
};
inline void CPU::run() {
cout<<"cpu运行"<<endl;
}
inline void CPU::stop() {
cout<<"cpu停止"<<endl;
}
class RAM
{
public:
RAM(int r=0)
:ram(r)
{
cout<<"成功构造一个ram!"<<endl;
}
~RAM()
{
cout<<"成功析构一个ram!"<<endl;
}
private:
int ram;
};
class CDRAM
{
public:
CDRAM(int c=0)
:cdram(c)
{
cout<<"成功构造一个cdram!"<<endl;
}
~CDRAM() {
cout<<"成功析构一个cdram!"<<endl;
}
private:
int cdram;
};
class Computer
{
public:
Computer(CPU c,RAM r,CDRAM cd)
:cpu(c),ram(r),cdram(cd)
{
cout<<"成功构造一个computer"<<endl;
}
void run()
{
cout<<"computer开始运行"<<endl;
}
void stop()
{
cout<<"computer停止运行"<<endl;
}
~Computer()
{
cout<<"析构了一个computer"<<endl;
}
private:
CPU cpu;
RAM ram;
CDRAM cdram;
};
int main() {
CPU c(P3,60,220);
RAM r(1);
CDRAM cd(2);
Computer(c,r,cd);
return 0;
}
来源:https://www.cnblogs.com/zmachine/p/12232848.html