C++入門 類基礎（1）如何寫一個簡單的類 並將其執行個體化

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The Basic of C++ Class

A simple class that stored a data.

Key Points

1.include<iostream>
2.using namespace std;
3.the function of the class is as followed:
1）store a data
2）rewrite and read it
3）constructor using 0 as default data
4）or give a initial data in parameter
4.main:
1）int main
2）return 0
3）instance object statement
4）endl
5）system(”pause”)

 

//A simple class that stored a data.#include "stdafx.h"#include<iostream>using namespace std;class Number{public:    Number()    {        data = 0;    }    Number(int value)    {        data = value;    }    void rewrite(int value)    {        data = value;    }    int print()    {        return data;    }private:    int data;};int main(){    cout << "Hello Haley Kong!" << endl;    Number num1 = Number();    cout << num1.print()  << endl;    num1.rewrite(666);    cout << num1.print() << endl;    Number num2 = Number(128);    cout << num2.print << endl;    system("pause");    return 0;}

 

C++入門 類基礎（1）如何寫一個簡單的類 並將其執行個體化