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  <html> <head> <meta http-equiv="content-Type" content="text/html;charset=gb2312"> <title>拖動(dòng)圖層自動(dòng)還原效果</title> <style type="text/css"> *{padding:0px auto;margin:0px auto;} body{font-size:12px;font-family:宋體;} .zzjs_net{width:100px;height:100px;border:1px solid red;float:left;background:#fff} .www_zzjs_net{width:100px;height:100px;border:1px solid red;float:right;background:#fff} </style> <script language="javascript"> function zzjs_net(){ var objthis=this; this.x=null; this.y=null; this.xx=null; this.yy=null; this.xxx=null; this.yyy=null; this.obja=null; this.co=null; this.t=null; document.onmousemove=function(){ try{objthis.x=arguments[0].screenX;objthis.y=arguments[0].screenY;} catch(err){objthis.x=window.event.x;objthis.y=window.event.y;} } } zzjs_net.prototype.create=function(a,b){ if(this.obja==null){ this.co=b; var objthis=this; this.obja=a; this.obja.onmouseup=function(){objthis.up()} this.xx=this.x; this.yy=this.y; this.xxx=this.obja.offsetLeft; this.yyy=this.obja.offsetTop; this.obja.style.position="absolute"; this.move(); } } zzjs_net.prototype.move=function(){ var objthis=this; var x=this.xxx + this.x - this.xx; var y=this.yyy + this.y - this.yy; this.obja.style.left = x + "px"; this.obja.style.top = y + "px"; this.t=setTimeout(function(){objthis.move()},1) } zzjs_net.prototype.up=function(){ clearTimeout(this.t) if(this.co==1){ this.obja.style.left = this.xxx + "px"; this.obja.style.top = this.yyy + "px"; } this.xxx=null; this.yyy=null; this.obja=null; } var cc1=new zzjs_net(); </script> </head> <body> <div id="0kkqlfz" class="zzjs_net" onmousedown="cc1.create(this,1)">還原式拖動(dòng)</div> <div id="0kkqlfz" class="www_zzjs_net" onmousedown="cc1.create(this)">不還原式拖動(dòng)</div> </body> </html>

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