每隔一段时间运行一次例程

我想知道这个主板上是否有任何javascript guru，我需要实现Jpegcam，以便它以2分钟的间隔自动捕获图片，而无需使用拍摄快照按钮。我希望代码以2分钟的间隔自动运行take_snapshot例程。任何有任何想法的人。每隔一段时间运行一次例程

<!-- Configure a few settings --> 
<script language="JavaScript"> 
    webcam.set_api_url('test.php'); 
    webcam.set_quality(90); // JPEG quality (1 - 100) 
    webcam.set_shutter_sound(false); // play shutter click sound 
    webcam.set_stealth(true); 

</script> 

<!-- Next, write the movie to the page at 320x240 --> 
<script language="JavaScript"> 
    document.write(webcam.get_html(320, 240)); 
</script> 

<!-- Some buttons for controlling things --> 
<br/><form> 
    <input type=button value="Configure..." onClick="webcam.configure()"> 
    &nbsp;&nbsp; 
    <input type=button value="Take Snapshot" onClick="take_snapshot()"> 
</form> 

<!-- Code to handle the server response (see test.php) --> 
<script language="JavaScript"> 
    webcam.set_hook('onComplete', 'my_completion_handler'); 

    function take_snapshot() { 
     // take snapshot and upload to server 
     document.getElementById('upload_results').innerHTML = '<h1>Uploading...</h1>'; 
     webcam.snap(); 
    } 

    function my_completion_handler(msg) { 
     // extract URL out of PHP output 
     if (msg.match(/(http\:\/\/\S+)/)) { 
      var image_url = RegExp.$1; 
      // show JPEG image in page 
      document.getElementById('upload_results').innerHTML = 
       '<h1>Upload Successful!</h1>' + 
       '<h3>JPEG URL: ' + image_url + '</h3>' + 
       '<img src="' + image_url + '">'; 

      // reset camera for another shot 
      webcam.reset(); 
     } 
     else alert("PHP Error: " + msg); 
    } 
</script>`

来源

2011-03-21 Golden Warrior

setInterval(take_snapshot, 1000 * 60 * 2);

来源

2011-03-21 08:37:29

每隔一段时间运行一次例程

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