Unity3d多線程

（一）多線程的建立

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

Thread t1 = new Thread(Go);

兩種建立方式沒有區別；

（二）多線程的狀態控制和優先級

多線程有4種狀態：Start()開始；Abort()終止；Join()阻塞；Sleep()休眠；

有5種優先級：從高到底依次爲：Highest，AboveNormal ，Normal ，BelowNormal ，Lowest；

線程的默認優先級爲Normal;

多線程實例

/*
 * 
 * 遊戲多線程
 * */
using UnityEngine;
using System.Threading;


public class BaseThread{
	
	private static BaseThread instance;

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

        /*測試線程優先級 
        /*/
        Thread th1 = new Thread(Th_test1);              //建立一個線程
        Thread th2 = new Thread(Th_test2);
        Thread th3 = new Thread(Th_test3);
        th1.Start();
        th2.Start();
        th3.Start();
        //學習優先級
        th1.Priority = System.Threading.ThreadPriority.Highest;         //優先級最高
        th2.Priority = System.Threading.ThreadPriority.Normal;
        th3.Priority = System.Threading.ThreadPriority.Lowest;
        //**/


        ///*測試線程鎖
        
        /*/

        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; 
	}
	

    //測試多線程鎖
    public void Th_lockTest()
    {
        
        Debug.Log("測試多線程");
        while (true)
        {
            lock (obj)
            {                                //線程「鎖」         
                num++;
                Debug.Log(Thread.CurrentThread.Name + "測試多線程" + num);
            }
            Thread.Sleep(100);
            if (num > 300)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }

    //測試多線程優先級
    public void Th_test1()
    {
        for (int i = 0; i < 500; i++)
        {
           
            Debug.Log("測試多線程1執行的次數:" + i);
            if(i >200)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }
    public void Th_test2()
    {
        for (int i = 0; i < 500; i++)
        {
         
            Debug.Log("測試多線程2執行的次數:" + i);
            if (i > 300)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }
    public void Th_test3()
    {
        for (int i = 0; i < 500; i++)
        {
      
            Debug.Log("測試多線程3執行的次數:" + i);
            if (i > 400)
            {
                Thread.CurrentThread.Abort();
            }
        }
    }

}