<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="和派孔明"
<meta name="copyright" content="和派孔明"
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no"/>
<title>关于zepto.js的移动端拖拽写法</title>
<style>#div1{ position:absolute;left:0;top:0;width:200px; height:200px; background:#ccc;}</style>
<script src="zepto.min.js"></script>

<script>function(){

         var disX = ev.targetTouches[0].pageX - $(this).position().left;    
         var disY = ev.targetTouches[0].pageY - $(this).position().top;

         $(this).on("touchmove",function(ev){
            $(this).css({
                left:ev.targetTouches[0].pageX - disX + "px",
                top:ev.targetTouches[0].pageY - disY + "px" 
            });  
         });

         $(this).on("touchend",function(){
             $(this).off('touchstart','touchmove');     
         }); 
    });
});
</script>
</head>
<body>
<div id="div1"></div>
</body>
</html>