c# Thread類線程常用操作詳解

第c#Thread類線程常用操作詳解目錄創(chuàng)建線程

管理線程

銷毀線程

創(chuàng)建線程

線程是通過擴展Thread類創(chuàng)建的。擴展的Thread類調(diào)用Start()方法來開始子線程的執(zhí)行。

下面的程序演示了這個概念：

classThreadCreationProgram

publicstaticvoidCallToChildThread()

Console.WriteLine("Childthreadstarts");

staticvoidMain(string[]args)

ThreadStartchildref=newThreadStart(CallToChildThread);

Console.WriteLine("InMain:CreatingtheChildthread");

ThreadchildThread=newThread(childref);

childThread.Start();

Console.ReadKey();

}

當(dāng)上面的代碼被編譯和執(zhí)行時，它會產(chǎn)生下列結(jié)果：

InMain:CreatingtheChildthread

Childthreadstarts

管理線程

Thread類提供了各種管理線程的方法。

下面的實例演示了sleep()方法的使用，用于在一個特定的時間暫停線程。

classThreadCreationProgram

publicstaticvoidCallToChildThread()

Console.WriteLine("Childthreadstarts");

//線程暫停5000毫秒

intsleepfor=5000;

Console.WriteLine("ChildThreadPausedfor{0}seconds",

sleepfor/1000);

Thread.Sleep(sleepfor);

Console.WriteLine("Childthreadresumes");

staticvoidMain(string[]args)

ThreadStartchildref=newThreadStart(CallToChildThread);

Console.WriteLine("InMain:CreatingtheChildthread");

ThreadchildThread=newThread(childref);

childThread.Start();

Console.ReadKey();

}

當(dāng)上面的代碼被編譯和執(zhí)行時，它會產(chǎn)生下列結(jié)果：

InMain:CreatingtheChildthread

Childthreadstarts

ChildThreadPausedfor5seconds

Childthreadresumes

銷毀線程

Abort()方法用于銷毀線程。

通過拋出threadabortexception在運行時中止線程。這個異常不能被捕獲，如果有finally塊，控制會被送至finally塊。

下面的程序說明了這點：

classThreadCreationProgram

publicstaticvoidCallToChildThread()

Console.WriteLine("Childthreadstarts");

//計數(shù)到10

for(intcounter=0;counter=10;counter++)

Thread.Sleep(500);

Console.WriteLine(counter);

Console.WriteLine("ChildThreadCompleted");

catch(ThreadAbortExceptione)

Console.WriteLine("ThreadAbortException");

finally

Console.WriteLine("Couldn'tcatchtheThreadException");

staticvoidMain(string[]args)

ThreadStartchildref=newThreadStart(CallToChildThread);

Console.WriteLine("InMain:CreatingtheChildthread");

ThreadchildThread=newThread(childref);

childThread.Start();

//停止主線程一段時間

Thread.Sleep(2000);

//現(xiàn)在中止子線程

Console.WriteLine("InMain:AbortingtheChildthread");

childThread.Abort();

Console.ReadKey();

}

當(dāng)上面的代碼被編譯和執(zhí)行時，它會產(chǎn)生下列結(jié)果：

InMain:CreatingtheChildthread

Childthreadstarts

InMain:AbortingtheChi