线程状态及其转换
线程对象使用ThreadState.属性指示线程状态。ThreadState是带flag特性的枚举类型对象，因此判断线程当前的状态必须用bitmask，作为一个特例，由于Running状态的bit码是0，因此，需要用如下方式判断线程是否处于运行状态：(myThread.ThreadState & (ThreadState.Stopped | ThreadState.Unstarted)) == 0。
枚举成员如下：
| Member name | Description | |
|---|---|---|
| Running | The thread has been started, it is not blocked, and there is no pendingThreadAbortException. | |
| StopRequested | The thread is being requested to stop. This is for internal use only. | |
| SuspendRequested | The thread is being requested to suspend. | |
| Background | The thread is being executed as a background thread, as opposed to a foreground thread. This state is controlled by setting theThread.IsBackground property. | |
| Unstarted | The Thread.Start method has not been invoked on the thread. | |
| Stopped | The thread has stopped. | |
| WaitSleepJoin | The thread is blocked. This could be the result of calling Thread.Sleep orThread.Join, of requesting a lock — for example, by callingMonitor.Enter orMonitor.Wait — or of waiting on a thread synchronization object such asManualResetEvent. | |
| Suspended | The thread has been suspended. | |
| AbortRequested | The Thread.Abort method has been invoked on the thread, but the thread has not yet received the pendingSystem.Threading.ThreadAbortException that will attempt to terminate it. | |
| Aborted | The thread state includes AbortRequested and the thread is now dead, but its state has not yet changed toStopped. |
状态转换图如下“
补充：软件开发 , C# ,
