Question

所以我制作了一个小型控制台计算器，用于计算圆周长。但我想用方法重写它。但我不知道从哪里开始。任何人都可以帮助我

using System;

class Circle
{
        static void Main()
    // Circumference of a circle: C=2πr
    {
        Console.WriteLine("What is the radius of your circle: ");
        double radius = double.Parse(Console.ReadLine());
        double pi = 3.1452;
        double area = 2 * pi * radius;
        Console.WriteLine("The Circumference of your circle is: "+ area);
        Console.ReadKey();
    }
}

Answer 1

using System;

class Circle
{
    public static double GetCircumference(double radius)
    {
        return 2 * Math.PI * radius;
    }

    static void Main()
    // Circumference of a circle: C=2πr
    {
        Console.WriteLine("What is the radius of your circle: ");
        Console.WriteLine("The Circumference of your circle is: " + GetCircumference(Double.Parse(Console.ReadLine())).ToString());
        Console.ReadKey();
    }
}

Answer 2

如果您只想将计算分解为方法，只需在主方法下创建以下方法：

    private static double CalculateCircumference(double radius)
    {
        return 2 * radius *  Math.PI;
    }

然后在主方法中调用它，如下所示：

    double circumference = CalculateCircumference(radius);

总而言之

    static void Main()
    {
        Print("What is the radius of your circle: ");
        double radius = ParseInputNumber();
        double circumference = CalculateCircumference(radius);
        Print("The Circumference of your circle is: " + circumference);
        WaitForKeystroke();
    }

    private static void Print(string message)
    {
        Console.WriteLine(message);
    }

    private static double ParseInputNumber()
    {
        return double.Parse(Console.ReadLine());
    }
    private static void WaitForKeystroke()
    {
        Console.ReadKey();
    }

    private static double CalculateCircumference(double radius)
    {
        return 2 * radius * Math.PI;
    }

使用方法制作圆周计算器

2 个答案: