event.which

所属分类：Events > Event Object 英文文档：event.which

event.which返回: Number

描述: 针对键盘和鼠标事件，这个属性能确定你到底按的是哪个键。

  • 添加的版本: 1.1.3event.which

event.which 将 event.keyCode 和 event.charCode 标准化了。推荐用 event.which 来监视键盘输入。更多细节请参阅： event.charCode on the MDC.

event.which也将正常化的按钮按下(mousedown 和 mouseupevents)，左键报告1，中间键报告2，右键报告3。使用event.which代替event.button。

例子:

Example: 记录按键

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<!DOCTYPE html>
<html>
<head>
  <script src="https://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
 
<input id="whichkey" value="type something">
<div id="log"></div>
<script>$('#whichkey').bind('keydown',function(e){
  $('#log').html(e.type + ': ' +  e.which );
});  </script>
 
</body>
</html>

Demo:

Example: Log which mouse button was depressed.

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<!DOCTYPE html>
<html>
<head>
  <script src="https://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
 
<input id="whichkey" value="type something">
<div id="log"></div>
<script>
$('#whichkey').bind('mousedown',function(e){
  $('#log').html(e.type + ': ' +  e.which );
});
</script>
 
</body>
</html>

Demo: