2012年1月27日星期五

了解线程Join()方法

Join的官方解释: 阻塞调用线程,直到某个线程终止或经过了指定时间为止
Q:谁是调用线程?

A:Join代码写在那,哪个就是调用线程,在本例中主线程是调用线程
Q:某个线程又是指的是谁?
A:如本例thread1执行了Join方法,thread1为某个线程

 

using System; using System.Threading;   class Join {     static int len1 = 5;     static int len2 = 6;       private static string[] w1 = new string[len1];     private static string[] w2 = new string[len2];           public static void Worker1()     {         for (int i = 0; i < len1; i++)         {             w1[i] ="方法1--" + i.ToString();             AddTime(1);             Console.WriteLine(w1[i]);         }     }       public static void Worker2()     {         for (int i = 0; i < len2; i++)         {             w2[i] = "方法2--" + i.ToString();             AddTime(1);             Console.WriteLine(w2[i]);         }     }       //模拟代码执行时间     private static void AddTime(int s)     {         DateTime d = DateTime.Now;         while (d.AddSeconds(s) > DateTime.Now){ }     }       static void Main(string[] args)     {         Thread thread1 = new Thread(new ThreadStart(Worker1));         Thread thread2 = new Thread(new ThreadStart(Worker2));           thread2.Start();         thread1.Start();           //阻塞主线程,直到thread1线程终止为止         //这时在thread1没有执行完,后面的代码是无法执行的。         //当然thread2执不执行完是不管的,并且thread1与thread2是同时无顺运行的。         thread1.Join();           Console.WriteLine("方法1已全部执行完成!");         for (int i = 0; i < 5; i++)         {             Console.WriteLine("主线程开始执行--" + i.ToString());             AddTime(2);         }     } }

了解线程Join()方法

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