你如何划分整数并在C#中获得双倍？

using System;

class Program
{
    static void Main()
    {
        int number = 5;
        int doubledNumber = DoubleNumber(number);
        Console.WriteLine("原始数字: " + number);
        Console.WriteLine("加倍后的数字: " + doubledNumber);
    }

    static int DoubleNumber(int num)
    {
        return num * 2;
    }
}