您可以使用BackgroundWorker RunWorkerAsync方法并传入您的值。

你可以使用一个paramtrizedthreadstart委托:

string parameter = "Hello world!";
Thread t = new Thread(new ParameterizedThreadStart(MyMethod));
t.Start(parameter);

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;

namespace ConsoleApp6
{
    class Program
    {
        static void Main(string[] args)
        {

            int x = 10;
            Thread t1 =new Thread(new ParameterizedThreadStart(order1));
            t1.IsBackground = true;//i can stope 
            t1.Start(x);

            Thread t2=new Thread(order2);
            t2.Priority = ThreadPriority.Highest;
            t2.Start();

            Console.ReadKey();
        }//Main

        static void  order1(object args)
        {
            int x = (int)args;


                for (int i = 0; i < x; i++)
            {
                Console.ForegroundColor = ConsoleColor.Green;
                Console.Write(i.ToString() + " ");
            }
        }

        static void order2()
        {
            for (int i = 100; i > 0; i--)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.Write(i.ToString() + " ");
            }
        }`enter code here`
    }
}

Thread thread = new Thread(Work);
thread.Start(Parameter);

private void Work(object param)
{
    string Parameter = (string)param;
}

参数类型必须为对象。

编辑:

虽然这个答案是正确的，但我不建议使用这种方法。使用lambda表达式更容易阅读，并且不需要类型强制转换。请看这里:https://stackoverflow.com/a/1195915/52551

我建议使用Task<T>而不是Thread;它允许多个参数并且执行得非常好。

下面是一个工作示例:

    public static void Main()
    {
        List<Task> tasks = new List<Task>();

        Console.WriteLine("Awaiting threads to finished...");

        string par1 = "foo";
        string par2 = "boo";
        int par3 = 3;

        for (int i = 0; i < 1000; i++)
        {
            tasks.Add(Task.Run(() => Calculate(par1, par2, par3))); 
        }

        Task.WaitAll(tasks.ToArray());

        Console.WriteLine("All threads finished!");
    }

    static bool Calculate1(string par1, string par2, int par3)
    {
        lock(_locker)
        {
            //...
            return true;
        }
    }

    // if need to lock, use this:
    private static Object _locker = new Object();"

    static bool Calculate2(string par1, string par2, int par3)
    {
        lock(_locker)
        {
            //...
            return true;
        }
    }

使用lambda的简单方法是这样的..

Thread t = new Thread(() => DoSomething("param1", "param2"));
t.Start();

或者你甚至可以像这样使用ThreadStart委托…

private void DoSomething(int param1, string param2)
{
    //DO SOMETHING...
    ThreadStart ts = delegate
    {
        if (param1 > 0) DoSomethingElse(param2, "param3");
    };   
    new Thread(ts).Start();
    //DO SOMETHING...
}

或者使用。net 4.5+甚至更干净，像这样..

private void DoSomething(int param1, string param2)
{
    //DO SOMETHING..
    void ts()
    {
        if (param1 > 0) DoSomethingElse(param2, "param3");
    }
    new Thread(ts).Start();
    //DO SOMETHING..
}