案例:jQuery UI案例     状态:可编辑再运行    进入竖版
 运行结果 
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<!doctype html>
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<html lang="en">
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<head>
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  <meta charset="utf-8">
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  <title>jQuery UI 放置(Droppable) - 接受</title>
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  <link rel="stylesheet" href="/css/jqu1.10.4/jquery-ui.min.css">
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  <script src="/js/jqu/jquery.min1.10.2.js"></script>
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  <script src="/js/jqu/jquery-ui.min1.10.4.js"></script>
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  <link rel="stylesheet" href="jqueryui/style.css">
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  <style>
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  #droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; }
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  #draggable, #draggable-nonvalid { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }
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  </style>
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  <script>
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  $(function() {
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    $( "#draggable, #draggable-nonvalid" ).draggable();
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    $( "#droppable" ).droppable({
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      accept: "#draggable",
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      activeClass: "ui-state-hover",
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      hoverClass: "ui-state-active",
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      drop: function( event, ui ) {
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        $( this )
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          .addClass( "ui-state-highlight" )
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          .find( "p" )
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            .html( "Dropped!" );
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      }
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    });
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  });
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  </script>
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</head>
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<body>
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<div id="draggable-nonvalid" class="ui-widget-content">
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  <p>我是不能被放置的 draggable</p>
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</div>
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<div id="draggable" class="ui-widget-content">
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  <p>请拖拽我到目标</p>
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</div>
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<div id="droppable" class="ui-widget-header">
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  <p>accept: '#draggable'</p>
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</div>
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</body>
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</html>