<html>
<head>
</head>
<body>
<div id="a" onclick="jia()" style="position:absolute;left:20;border:1px solid #ccc;width:400px;height:300px;">ç¹æ¤left+1</div>
<script>
function jia(){
var x=document.getElementById("a").style.left;
x=x.replace("px","")//è¿æ»¤æåé¢çpx
x= Number(x)+1;//ååºç¡ä¸+1
document.getElementById("a").style.left=x+"px";
}
</script>
</body>
</html>
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