（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();            }        }    }}