Unity3d多线程

http://blog.csdn.net/dingkun520wy/article/details/49181645

（一）多线程的创建

Thread t = new Thread(new ThreadStart(Go)); 

Thread t1 = new Thread(Go);

两种创建方式没有区别；

（二）多线程的状态控制和优先级

多线程有4种状态：Start()开始；Abort()终止；Join()阻塞；Sleep()休眠；

有5种优先级：从高到底依次为：Highest，AboveNormal ，Normal ，BelowNormal ，Lowest；

线程的默认优先级为Normal;

多线程实例

/*
 *
 * 游戏多线程
 * */
using UnityEngine;
using System.Threading;


public class BaseThread{

    private static BaseThread instance;

    object obj = new object();
    int num = 0;
    private BaseThread()
    {

        /*测试线程优先级
        /*/
        Thread th1 = new Thread(Th_test1);              //创建一个线程
        Thread th2 = new Thread(Th_test2);
        Thread th3 = new Thread(Th_test3);
        th1.Start();
        th2.Start();
        th3.Start();
        //学习优先级
        th1.Priority = System.Threading.ThreadPriority.Highest;         //优先级最高
        th2.Priority = System.Threading.ThreadPriority.Normal;
        th3.Priority = System.Threading.ThreadPriority.Lowest;
        //**/


        ///*测试线程锁

        /*/

        Thread th1 = new Thread(new ThreadStart(Th_lockTest));
        th1.Name = "test1";
        th1.Start();

        Thread th2 = new Thread(new ThreadStart(Th_lockTest));
        th2.Name = "test2";
        th2.Start();

        //*/




    }


    public static BaseThread GetInstance()
    {
        if (instance == null)
        {
            instance = new BaseThread();
        }
        return instance;
    }


    //测试多线程锁
    public void Th_lockTest()
    {

        Debug.Log("测试多线程");
        while (true)
        {
            lock (obj)
            {                                //线程“锁”
                num++;
                Debug.Log(Thread.CurrentThread.Name + "测试多线程" + num);
            }
            Thread.Sleep(100);
            if (num > 300)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }

    //测试多线程优先级
    public void Th_test1()
    {
        for (int i = 0; i < 500; i++)
        {

            Debug.Log("测试多线程1执行的次数:" + i);
            if(i >200)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }
    public void Th_test2()
    {
        for (int i = 0; i < 500; i++)
        {

            Debug.Log("测试多线程2执行的次数:" + i);
            if (i > 300)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }
    public void Th_test3()
    {
        for (int i = 0; i < 500; i++)
        {

            Debug.Log("测试多线程3执行的次数:" + i);
            if (i > 400)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }

}

注意：

1，当多个线程同时访问同一数据时要加线程锁lock。

Object n=new Object();
   long shu = 0;
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update ()
   {
       lock (n)
       {
           xian = 1;
       }
}