如何在倒计时播放声音 [英] How to play a sound with the count down

问题描述

我有一个Windows窗体应用程序，可以让我看到倒计时。我想在特定的时间发出警告声。例如，上午11:06。

I have a windows form application that allows me to see count down. I would like to play a warning sound in a specific time. For example at 11:06 am.

var curTime = DateTime.Now.TimeOfDay;
var soundTime= new TimeSpan(11, 06, 0);

......

 if(curTime==soundTime)
{
   SoundPlayer simpleSound = new SoundPlayer(@"c:\Windows\Media\Windows Logon Sound.wav");
   simpleSound.Play();
}

基本上当倒计时时间到达特定时间时，我想播放那个声音文件，但它没有'工作。

Basically when the count down clock reaches the specific time, I wanted to play that sound file however it doesn't work.

推荐答案

OP已确认我在评论中的建议有效

OP has confirmed that my suggestion in a comment works

引用：

这可能是因为curTime也会有毫秒，所以你的测试if（curTime == soundTime）不太可能是真的（达到精确的几率） 0毫秒很苗条！）。请尝试if（curTime> = soundTime）（并记住重置计时器或循环或用于计数的任何东西）

It is probably because curTime will also have milliseconds, so your test if(curTime==soundTime) would be unlikely to be true (Chances of hitting the exact 0 milliseconds is slim!). Try if(curTime>=soundTime) instead (and remember to reset the timer or loop or whatever you are using to count down)

因此OP代码变为

So the OPs code becomes

var curTime = DateTime.Now.TimeOfDay;
var soundTime= new TimeSpan(11, 06, 0);


......

 if(curTime >= soundTime)
            {
                SoundPlayer simpleSound = new SoundPlayer(@"c:\Windows\Media\Windows Logon Sound.wav");
                simpleSound.Play();
            }

这对我有用

This works for me

var soundTime= new TimeSpan(11, 06, 0);
DateTime start = new DateTime(2009, 12, 9, 10, 0, 0); //10 o'clock
DateTime end = new DateTime(2015, 12, 10, 12, 0, 0); //12 o'clock
DateTime curTime = DateTime.Now;
if ((curTime > start) && (curTime < end))

 
 //if(curTime==soundTime)
            {
                System.Media.SoundPlayer player = new System.Media.SoundPlayer(@"c:\Windows\Media\Windows Logon Sound.wav");
                player.Play();
            }

我假设您的代码在计时器中运行（实际上我确定）

I am assuming than your code is running in a timer (actually I am sure)

var soundTime = new TimeSpan(11, 06, 0);

var curDate = DateTime.Now;
if (soundTime.Equals(new TimeSpan(curDate.Hour, curDate.Minute, curDate.Second)))
{
   SoundPlayer simpleSound = new SoundPlayer(@"c:\Windows\Media\Windows Logon Sound.wav");
   simpleSound.Play();
}

如果您的代码块在计时器刻度事件中，if（curTime> = soundTime）将持续开火并失败。

If your code block is in timer tick event, if(curTime >= soundTime) will fire continuously and will fail.

这篇关于如何在倒计时播放声音的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！