記錄C++鄭莉老師課堂代碼
類與對象 實驗四上
聲明一個CPU類,包含等級(rank)、頻率(frequency)、電壓(voltage)等屬性
有兩個公有成員函數run、stop。
其中,rank爲枚舉類型CPU_Rank,聲明爲enum CPU_Rank{P1=1,P2,P3,P4,P5,P6,P7},frequency爲單位是MHz的整型數,voltage爲浮點型的電壓值
#include <iostream>
using namespace std;
enum CPU_Rank { p1 = 1, p2, p3, p4, p5, p6, p7 };
class CPU
{
private:
CPU_Rank rank;
int frequency;
float voltage;
public:
CPU(CPU_Rank r, int f, float v)
{
rank = r;
frequency = f;
voltage = v;
cout << "你構建了CPU" << endl;
}
~CPU() { cout << "你析構了CPU" << endl; }
void setrank(CPU_Rank r) { rank = r; }
void setFrequency(int f) { frequency = f; }
void setvoltage(float v) { voltage = v; }
void run() { cout << "CPU開始運行" << endl; }
void stop() { cout << "CPU已經停止" << endl; }
};
int main()
{
CPU a(p6, 50, 30.0);
a.run();
a.stop();
CPU aa(p7, 50, 30.0);
aa.run();
aa.stop();
}