fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"> </script> <script> $(document).ready(function(){ $(document).ajaxStart(function(){ $("#wait").css("display","block"); }); $(document).ajaxComplete(function(){ $("#wait").css("display","none"); }); $("button").click(function(){ $("#txt").load("demo_ajax_load.php"); }); }); </script> </head> <body> <div id="txt"><h2>使用 AJAX 修改文本</h2></div> <button>修改内容</button> <div id="wait" style="display:none;width:69px;height:89px;border:1px solid black;position:absolute;top:50%;left:50%;padding:2px;"><img src='demo_wait.gif' width="64" height="64" /><br>Loading..</div> </body> </html>
运行结果