概述
返回值:String
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。
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 MDN.
event.which
也将正常化的按钮按下(mousedown
和 mouseup
events),左键报告1
,中间键报告2
,右键报告3
。使用event.which
代替event.button
。
示例
记录按键
<!DOCTYPE html>
<html>
<head>
<script src="http://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>
Log which mouse button was depressed.
<!DOCTYPE html>
<html>
<head>
<script src="http://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>