<script type="text/javascript" src="jquery-1.3.2.js"></script> <script type="text/javascript"> $(function() { $("#loading_img").click( function() { $.ajax({ type:"GET", url:"demo.php", data:"name=wuxiaoyong", beforeSend:loading,//执行ajax前执行loading函数.直到success success:Response //成功时执行Response函数 }) } ) }); function loading(){ $('#loading_img').html('<img src="images/loading.gif"/>'); } function Response(data){ $('#loading_img').html(data); } </script> <div id="loading_img">点击加载</div>