关于JS的滚动条代码
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发布时间：2022-05-02 11:25
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时间：2022-05-14 17:31
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){ var b;
$("#btn1").click(function(){
var a=$("div").scrollTop();
if(a<b){ alert('上');}else{ alert('下');}
b=a;
});
});
</script>
</head>
<body>
<div style="border:1px solid black;width:200px;height:200px;overflow:auto" class="btn1">
This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text.
</div>
<button id="btn1">点一下</button>
</body>
</html>
