如何在 C# 中檢查執行緒是否為後臺執行緒
要檢查執行緒是否為後臺執行緒,程式碼如下:
示例
using System; using System.Threading; public class Demo { public static void Main() { Thread thread = new Thread(new ThreadStart(demo1)); ThreadPool.QueueUserWorkItem(new WaitCallback(demo2)); Console.WriteLine("Current state of Thread = "+thread.ThreadState); Console.WriteLine("ManagedThreadId = "+thread.ManagedThreadId); Console.WriteLine("Is the Thread a background thread? = "+Thread.CurrentThread.IsBackground); } public static void demo1() { Thread.Sleep(2000); } public static void demo2(object stateInfo) { Console.WriteLine("Thread belongs to managed thread pool? = "+Thread.CurrentThread.IsThreadPoolThread); } }
輸出
這將產生以下輸出:
Current state of Thread = Unstarted ManagedThreadId = 721 Is the Thread a background thread? = False Thread belongs to managed thread pool? = True
示例
讓我們看另一個示例:
using System; using System.Threading; public class Demo { public static void Main() { Thread thread = new Thread(new ThreadStart(demo1)); ThreadPool.QueueUserWorkItem(new WaitCallback(demo2)); Console.WriteLine("Current state of Thread = "+thread.ThreadState); Console.WriteLine("ManagedThreadId = "+thread.ManagedThreadId); thread.IsBackground = true; Console.WriteLine("Is the Thread a background thread? = "+thread.IsBackground); } public static void demo1() { Thread.Sleep(2000); } public static void demo2(object stateInfo) { Console.WriteLine("Thread belongs to managed thread pool? = "+Thread.CurrentThread.IsThreadPoolThread); } }
輸出
這將產生以下輸出:
Current state of Thread = Unstarted ManagedThreadId = 1114 Is the Thread a background thread? = True Thread belongs to managed thread pool? = True
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