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jquery拖拽效果完整实例(附demo源码下载)_jquery

WBOY
Release: 2016-05-16 15:20:05
Original
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本文实例讲述了jquery实现的拖拽效果。分享给大家供大家参考,具体如下:

运行效果截图如下:

点击此处查看在线演示效果

具体代码如下:

html部分:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="tuo.js"></script>
<script type="text/javascript">
 $(function(){
  $("#box").tuoz();
 })
</script>
<style type="text/css">
 *{
  margin:0px;
  padding:0px;
 }
 #box{
  height:100px;
  width:100px;
  background:#666666;
 }
 #box img{
  height:50px;
  width:50px;
  background:#666666;
 }
 #big{
  height:400px;
  width:300px;
  background:purple;
 }
</style>
</head>
<body>
 <div id="box"><img  src="http://www.baidu.com/img/baidu_sylogo1.gif" alt="jquery拖拽效果完整实例(附demo源码下载)_jquery" ></img></div>
 <div id="big"></div>
</body>
</html>

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jquery部分:

(function(){
 $.fn.extend({
  tuoz:function(){
  return this.each(function(){
    var $this=$(this);
    var ey="";
    var ex="";
    var mx="";
    var my="";
    var tx="";
    var ty="";
    var small_x="";
    var small_y="";
    var big_height="";
    var big_width="";
    var big_x="";
    var big_y="";
    var move="false";
    $this.mousedown(function(e){
     move="true";
     mx=$this.offset().left;
     my=$this.offset().top;
     ex=e.clientX;
     ey=e.clientY;
     tx=ex-mx;
     ty=ey-my;
     small_x=$("#big").offset().left;
     small_y=$("#big").offset().top;
     big_height=$("#big").height();
     big_width=$("#big").width();
     big_x=small_x+big_width;
     big_y=small_y+big_height;
     })
    $(document).mousemove(function(e){
      ex=e.clientX;
      ey=e.clientY;
      if(move=="true"){
      $this.offset({left:ex-tx,top:ey-ty});
      }
      })
    $this.mouseup(function(e){
      move=false;
      ex=e.clientX;
      ey=e.clientY;
      if(ex>=small_x && ey>=small_y && ex<=big_x && ey<=big_y){
    $("#big").append($this.html());
    }
      $this.offset({left:mx,top:my});
      })
    })
  }
  })
})(jQuery)

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完整实例代码点击此处本站下载

更多关于jQuery特效与技巧相关内容感兴趣的读者可查看本站专题:《jQuery常见经典特效汇总

希望本文所述对大家jQuery程序设计有所帮助。

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