问C#线程没有设置其他类的变量值吗？

EN

  class Program
{
    static void Main(string[] args)
    {
        new Thread(delegate() { runThread(); }).Start();

        Console.WriteLine(Global.test);
        Console.ReadKey();
    }
    private static void runThread()
    {
        Console.WriteLine("this is run thread");
        Global.test = "this is test from thread";

        Console.WriteLine(Global.test);
    }
}
public class Global
{

    public static string testV { get; set; }
}