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How to implement drag and drop animation in html

php中世界最好的语言
Release： 2018-05-14 11:19:38
Original
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We know that there are many ways to implement animation using HTML. This time I will teach you how to use JS to realize drag-and-drop animation in HTML. Let's take a look at the case together. 

<!DOCTYPE">
<html">
<head>
<style>
#p1 {width:100px; height:100px; background:red; position:absolute;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>
var oDiv=null;
var disX=0;
var disY=0;
window.onload=function ()
{
    oDiv=document.getElementById(&#39;p1&#39;);
    oDiv.onmousedown=fnDown;
};
  
function fnDown(ev)
{
    var oEvent=ev||event;
    disX=oEvent.clientX-oDiv.offsetLeft;
    disY=oEvent.clientY-oDiv.offsetTop;
  
    document.onmousemove=fnMove;
    document.onmouseup=fnUp;
}
function fnMove(ev)
{
    var oEvent=ev||event;
    oDiv.style.left=oEvent.clientX-disX+&#39;px&#39;;
    oDiv.style.top=oEvent.clientY-disY+&#39;px&#39;;
}
  
function fnUp()
{
    document.onmousemove=null;
    document.onmouseup=null;
}
</script>
</head>
<body>
<p id="p1">
</p>
</body>
</html>
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I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

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Related labels：
html animation method
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