(五)线程--定制线程及设置和获取线程的优先级别

王朝c#·作者佚名  2006-12-17
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(五)线程--定制线程及设置和获取线程的优先级别

(五)线程--定制线程及设置和获取线程的优先级别 (一).描述

此示例演示怎样定制一个线程,并且设置线程的主要属性和获取线程运行时的状态

(二).代码

using System;

using System.Threading;

namespace 定制线程

{

//委托声明(函数签名)

//delegate string MyMethodDelegate();

class MyClass

{

public static void Method1()

{

int i;

for(i=0;i<10;i++)

{

Console.WriteLine('Method1 at :' + i.ToString());

//当线程停止/失败或未启动时IsAlive值为:false,否则为:true;

Console.WriteLine(' IsAlive is ' + Thread.CurrentThread.IsAlive.ToString()+' ');

//是否是后台进程

Console.WriteLine(' IsBackGround is ' + Thread.CurrentThread.IsBackground.ToString()+' ');

//线程名称

Console.WriteLine(' Name is ' + Thread.CurrentThread.Name.ToString()+' ');

//优先级

Console.WriteLine(' Priority is ' + Thread.CurrentThread.Priority.ToString()+' ');

//ThreadState值组合,有:启动/运行/等待/是否是后台线程等状态. 通过此属性来判断该线程是否完成任务.

Console.WriteLine(' ThreadState is ' + Thread.CurrentThread.ThreadState.ToString()+'\n\n ');

DelayTime(1); //延长时间,模拟执行任务

}

}

public static void Method2()

{

int i;

for(i=0;i<10;i++)

{

Console.Write('Method2 at :' + i.ToString());

//当线程停止/失败或未启动时IsAlive值为:false,否则为:true;

Console.WriteLine(' IsAlive is ' + Thread.CurrentThread.IsAlive.ToString()+' ');

//是否是后台进程

Console.WriteLine(' IsBackGround is ' + Thread.CurrentThread.IsBackground.ToString()+' ');

//线程名称

Console.WriteLine(' Name is ' + Thread.CurrentThread.Name.ToString()+' ');

//优先级

Console.WriteLine(' Priority is ' + Thread.CurrentThread.Priority.ToString()+' ');

//ThreadState值组合,有:启动/运行/等待/是否是后台线程等状态. 通过此属性来判断该线程是否完成任务.

Console.WriteLine(' ThreadState is ' + Thread.CurrentThread.ThreadState.ToString()+'\n\n ');

DelayTime(1); //延长时间,模拟执行任务

}

}

private static void DelayTime(int n)

{

DateTime startTime = DateTime.Now;

while(startTime.AddSeconds(n) > DateTime.Now)

{

//延长时间,模拟实际中的进程

}

}

[STAThread]

static void Main(string[] args)

{

// MyMethodDelegate d1 = new MyMethodDelegate(MyClass.Method1);

// MyMethodDelegate d2 = new MyMethodDelegate(MyClass.Method2);

Thread thread1 = new Thread(new ThreadStart(Method1));

thread1.Name = 'A'; //给线程定义名称

//ThreadPriority枚举共五种优先级,由高->低依次为: Highest->AboveNormal->Normal->BelowNormal->Lowest

//优先级高的先优先执行,相同优先级的线程具有相同对CPU争夺权力

thread1.Priority = ThreadPriority.Highest;

Thread thread2 = new Thread(new ThreadStart(Method2));

thread2.Name = 'B';

thread2.Priority = ThreadPriority.Normal;

thread1.Start();

thread2.Start();

Console.Read();

}

}

}

本示例代码已经测试,能够正常运行!

(三).示例下载

http://www.cnblogs.com/Files/ChengKing/ThreadExample.rar

 
 
 
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