C# 名前付きパラメーター

using System;

namespace TestNamespace
{
internal class HP
{
public int CalcAdd2(int a, int b, int c)
{
return a + b + c;
}
}

class Program
{
    static void Main(string[] args)
    {
        HP test = new HP();

        int a = test.CalcAdd2(a: 3, b: 4, c: 2);

        int b = test.CalcAdd2(a: 3, b: 1, c: 2);

        Console.WriteLine(a);
        Console.WriteLine(b);
    }
}

}