HTML \ Javascript - 獲取ATL \ CTRL \ SHIFT鍵按

是否有能力捕獲任何按鍵？即Ctrl + Shift + Alt按鍵（沒有其他按鍵）。HTML Javascript - 獲取ATL CTRL SHIFT鍵按

在下面的代碼段中（在Chrome中選中），我只能在按下其他「常規」鍵時捕獲換檔。

UPDATE：

<html> 
<head> 
    <script> 
     function onKeyPressed(event) { 
      event = event || window.event; 
      var code = event.keyCode; 
      var key = String.fromCharCode(event.keyCode); 
      var shift = event.shiftKey; 
      var alt = event.altKey; 
      var ctrl = event.ctrlKey; 
      var which = event.which; 
      var str = "code = " + code + "\n" + 
         "key = " + key + "\n" + 
         "shift = " + shift + "\n" + 
         "alt = " + alt + "\n" + 
         "ctrl = " + ctrl + "\n" + 
         "which = " + which; 
      alert(str); 
     }; 

     function onClick(event) { 
      event = event || window.event; 
      var x = event.clientX; 
      var y = event.clientY; 
      var str = "x = " + x + "\n" + 
         "y = " + y; 
      alert(str); 
     }; 

     function onKeyUp(event) { 
      alert("onKeyUp"); 
     }; 

     function onKeyDown(event) { 
      alert("onKeyDown"); 
     } 
    </script> 
</head> 
<body onmousedown="onClick(event)" onkeypress="onKeyPressed(event)" onkeyup="onKeyUp(event)" onkeydown="onKeyDown(event)"></body> 
</html>

如何這些密鑰被捕獲？

來源

2012-07-26 MrRoth

是不是隻是'if（event.keyCode == x）'其中x是shift/ctrl/alt的關鍵代碼？ – 11684 2012-07-26 21:14:21

又一個jQuery解決方案，我不會去釣魚downvotes :) http://craig.is/killing/mice – 2012-07-26 21:15:07

哎呀，對不起，[重複我找到]（http://stackoverflow.com/questions）/10655202/detect-multiple-keys-on-single-keypress-event-on-jquery/10655273＃10655273）是jQuery特有的。仍然，很容易適應，我認爲它唯一的jQuery方面是鉤住事件，這很容易修改。 – 2012-07-26 21:15:59