如何在c#中使用静态全局定义的变量？

using System;

public static class GlobalVariables
{
    // 定义一个静态字段
    public static int GlobalCounter = 0;
}

class Program
{
    static void Main()
    {
        // 访问并修改静态全局变量
        Console.WriteLine("Initial GlobalCounter: " + GlobalVariables.GlobalCounter);
        GlobalVariables.GlobalCounter++;
        Console.WriteLine("Updated GlobalCounter: " + GlobalVariables.GlobalCounter);
    }
}

public static class GlobalVariables
{
    private static readonly object lockObject = new object();
    public static int GlobalCounter = 0;

    public static void IncrementCounter()
    {
        lock (lockObject)
        {
            GlobalCounter++;
        }
    }
}