C++ 程序：使用类执行基本操作

原文：https://www.studytonight.com/cpp-programs/cpp-performing-basic-operations-using-class

大家好！

在本教程中，我们将学习如何使用 C++ 编程语言中的类及其成员执行基本操作。

为了了解类及其成员的概念，我们将推荐您访问这里: C++ 类概念，我们已经从头开始解释了。

代号:

#include <iostream>

#include <vector>

using namespace std;

//defining the class operations to implement all the basic operations
class operations {
    //declaring member variables
    public:
        int num1, num2;

    //defining member function or methods
    public:
        void input() {
            cout << "Enter two numbers to perform operations on: \n";
            cin >> num1 >> num2;
            cout << "\n";
        }

    public:
        void addition() {
            cout << "Addition = " << num1 + num2;
            cout << "\n";
        }

    void subtraction() {
        cout << "Subtraction = " << num1 - num2;
        cout << "\n";
    }

    void multiplication() {
        cout << "Multiplication = " << num1 * num2;
        cout << "\n";
    }

    void division() {
        cout << "Division = " << (float) num1 / num2;
        cout << "\n";
    }
};

//Defining the main method to access the members of the class
int main() {
    cout << "\n\nWelcome to Studytonight :-)\n\n\n";
    cout << " =====  Program to perform basic operations using Class, in CPP  ===== \n\n";

    //Declaring class object to access class members from outside the class
    operations op;

    cout << "\nCalling the input() function from the main() method\n";
    op.input();

    cout << "\nCalling the addition() function from the main() method\n";
    op.addition();

    cout << "\nCalling the subtraction() function from the main() method\n";
    op.subtraction();

    cout << "\nCalling the multiplication() function from the main() method\n";
    op.multiplication();

    cout << "\nCalling the division() function from the main() method\n";
    op.division();

    cout << "\nExiting the main() method\n\n\n";

    return 0;
}

输出:

我们希望这篇文章能帮助你更好地理解 C++ 中类的概念。如有任何疑问，请随时通过下面的评论区联系我们。

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