源代码:
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 放置（Droppable） - 还原 draggable 的位置</title> <link rel="stylesheet" href="//apps.bdimg.com/libs/jqueryui/1.10.4/css/jquery-ui.min.css"> <script src="//apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script> <script src="//apps.bdimg.com/libs/jqueryui/1.10.4/jquery-ui.min.js"></script> <link rel="stylesheet" href="jqueryui/style.css"> <style> #draggable, #draggable2 { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; } #droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; } </style> <script> $(function() { $( "#draggable" ).draggable({ revert: "valid" }); $( "#draggable2" ).draggable({ revert: "invalid" }); $( "#droppable" ).droppable({ activeClass: "ui-state-default", hoverClass: "ui-state-hover", drop: function( event, ui ) { $( this ) .addClass( "ui-state-highlight" ) .find( "p" ) .html( "已放置！" ); } }); }); </script> </head> <body> <div id="draggable" class="ui-widget-content"> <p>当被放置在目标上时还原</p> </div> <div id="draggable2" class="ui-widget-content"> <p>当未被放置在目标上时还原</p> </div> <div id="droppable" class="ui-widget-header"> <p>请放置在这里</p> </div> </body> </html>
运行结果：