Task usage (2)-wait for wait and taskwait

Task usage (2)-wait for wait and taskwait
1. Wait usageBy default, a Task has asynchronous thread execution in the thread pool. To determine whether the execution is complete, you can use the IsCompleted attribute of the Task, you can call a task to perform subsequent operations on the main thread. wait for the thread to complete. After Wait is called, the current thread will be blocked until the sub-thread completes. Sample Code:

 static void Main(string[] args)        {            Task t = Task.Run(() =>              {                  Thread.Sleep(500);                  Console.WriteLine("Lance");                  Thread.Sleep(500);              });            Console.WriteLine("t.IsCompleted=" + t.IsCompleted);            t.Wait();            Console.WriteLine("t.IsCompleted=" + t.IsCompleted);        }

 

Running result:

　

2. Set the Wait time for Wait.

Static void Main (string [] args) {Task t = Task. run () => {Thread. sleep (1, 500); Console. writeLine ("Lance"); Thread. sleep (500) ;}); Console. writeLine ("t. isCompleted = "+ t. isCompleted); bool IsComplate = t. wait (200); Console. writeLine ("wait 200 ms later t. isCompleted = "+ t. isCompleted); Thread. sleep (1, 1000); Console. writeLine ("t. isCompleted = "+ t. isCompleted );}

　　

Running result: