C#线程倒计时器源码分享

本文实例为大家分享了c#线程倒计时器源码，供大家参考，具体内容如下

using system;
using system.collections.generic;
using system.linq;
using system.text;
using system.threading;
using system.windows.forms;

namespace listzzbg
{
class timeheleper
{
thread thread;
private timespan time; //计时时间 
private timespan endtime; //到点时间 
private label lb;
private bool whereexit = true;

/// <summary> 
/// 设定计时器计时的时间 
/// </summary> 
/// <param name="starttime">计时器时间，如：01:00:00 既1小时</param> 
public timeheleper(timespan starttime, label lb)
{
time = starttime;
this.lb = lb;
}

public void showlabel()
{
lb.text = time.tostring();
}

/// <summary> 
/// 获取时间 
/// </summary> 
/// <returns></returns> 
public timespan gettime()
{
return time;
}

/// <summary> 
/// 开启计时器 
/// </summary> 
public void open()
{
//计算到点时间 
timespan tsnow = timespan.parse(datetime.now.tostring("hh:mm:ss"));
timespan tsadd = time;
endtime = tsnow + tsadd;
//线程开始 
whereexit = false;
thread = new thread(timethreadstart);
thread.isbackground = true;
thread.start();
}

/// <summary> 
/// 关闭计时器 
/// </summary> 
public void close()
{
whereexit = true;
thread.join(1000);
}

private void timethreadstart()
{
while (!whereexit)
{
runtime();
thread.sleep(1000);
}
}

private delegate void runtimedelegate();
private void runtime()
{
if (lb.invokerequired)
{
runtimedelegate d = runtime;
lb.invoke(d);
}
else
{
time = endtime - timespan.parse(datetime.now.tostring("hh:mm:ss"));
string[] sp = time.tostring().split(':');
lb.text = sp[2].tostring();  //liable1控件
}
}
}

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。