就像问题所述，我有一个类字段，它需要作为参数传递给一个方法，命名空间BasicMath正在另一个文件中使用，代码如下所述。

namespace BasicMath
{
   class Operation
   {   
       private static float number1 = 1;

       public static float Add(Operation.number1, float number2)
       {
           return Operation.number1 + number2;
       }
   }
}

使用BasicMAth的地方:

using System;
using BasicMath;

namespace test
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("What is the first number you want to operate on");

            float number1 = Convert.ToSingle(Console.ReadLine());

            Console.WriteLine("What is the second number you want to operate on");

            float number2 = Convert.ToSingle(Console.ReadLine());

            Console.WriteLine("What is the operation you want to do on these numbers\n add(+), subtract(-),divide(/),multiply(*)");

            string operation = Console.ReadLine();

            if(operation == "+" || operation == "add"){
              Console.WriteLine(Operation.Add(number1,number2));
            }

我希望能够使用类字段number1作为add的参数，我知道要使用类字段，必须指定类，该字段在中引用，在本例中，类是operation，该类中的字段是number1。