修剪矩形

Fskjb 2021-09-04 原文

修剪矩形

代码

<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml”>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />
<style type=”text/css”>
#data1{ position:absolute; top:100px; left:100px; padding:0px; width:200px; height:200px; background-color:#FFFF00; clip:rect(0px,200px,200px,0px);}
</style>
<script type=”text/javascript”>
    var bottom=200;
    var clipped=false;
    document.onclick=testItem;

    function testItem(){
        if(clipped){
            unClipItem();
        }else{
            clipItem();
        }
    }

    function clipItem(){
        bottom -= 20;
        var clip=“rect(0px,200px,“+bottom+“px,0px)“;
        var obj=document.getElementById(“data1“);
        obj.style.clip=clip;
        if(bottom==40){
            clipped=true;
        }else{
            setTimeout(“clipItem()“,100);
        }
    }
    function unClipItem(){
        bottom +=20;
        var clip=“rect(0px,200px,“+bottom+“px,0px)“;
        var obj=document.getElementById(“data1“);
        obj.style.clip=clip;
        if(bottom==200){
            clipped=false;
        }else{
            setTimeout(“unClipItem()“,100);
        }
    }
</script>
</head>
<body>
<div id=”data1″>
<p>this is the contained within the div block.</p>
</div>
</body>
</html>