C#中如何检查线程是否处于活动状态
要检查线程是否存在，代码如下：
示例
using System;
using System.Threading;
public class Demo {
public static void Main() {
Thread thread = new Thread(new ThreadStart(demo1));
thread = Thread.CurrentThread;
Console.WriteLine("线程还活着吗? = "+thread.IsAlive);
ThreadPool.QueueUserWorkItem(new WaitCallback(demo2));
Console.WriteLine("线程的当前状态 = "+thread.ThreadState);
Console.WriteLine("ManagedThreadId = "+thread.ManagedThreadId);
thread.IsBackground = true;
Console.WriteLine("线程是后台线程吗? = "+thread.IsBackground);
}
public static void demo1() {
Thread.Sleep(2000);
}
public static void demo2(object stateInfo) {
Console.WriteLine("线程属于托管线程池? = "+Thread.CurrentThread.IsThreadPoolThread);
}
}输出结果
这将产生以下输出-
线程还活着吗? = True 线程的当前状态 = Running ManagedThreadId = 775 线程是后台线程吗? = True 线程属于托管线程池? = True
示例
现在让我们来看另一个示例-
using System;
using System.Threading;
public class Demo {
public static void Main() {
Thread thread = new Thread(new ThreadStart(demo));
thread.Start();
Console.WriteLine("线程还活着吗? "+thread.IsAlive);
}
public static void demo() {
Console.WriteLine("线程属于托管线程池? = "+Thread.CurrentThread.IsThreadPoolThread);
}
}输出结果
这将产生以下输出-
线程还活着吗? True 线程属于托管线程池? = False