在div的onscroll的事件里写一个代码发现它重复了3次,为什么?
<html>
<head>
<script>
var j = 1;
function scrollEvent(){
alert(j);
j++;
}
</script>
</head>
<body>
<div onScroll="scrollEvent();" style="width:300; height:50; overflow: auto">sdgasdgadssssdeeeeeeeeeeeeeeekkkkkkkkkkkkkkkkkkkkkkkeeeeeeeeeeeeeee</div>
</body>
</html>
<html>
<head>
<script>
var j = 1;
function scrollEvent(){
alert(j);
j++;
}
</script>
</head>
<body>
<div onScroll="scrollEvent();" style="width:300; height:50; overflow: auto">sdgasdgadssssdeeeeeeeeeeeeeeekkkkkkkkkkkkkkkkkkkkkkkeeeeeeeeeeeeeee</div>
</body>
</html>
在div里有一个table添满了div顺便再问一个问题:如何判断div 是点击了左右滚动还上下滚动?