（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();}}}}