1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="UTF-8"> 5 <title>广告定时弹出与关闭</title> 6 <script type="text/javascript" src="../js/jquery-1.11.0.js"></script> 7 8 <script> 9 function showAD(){ 10 $("#img1").slideDown(3000); 11 setTimeout("hideAD()",6000); 12 } 13 14 function hideAD(){ 15 $("#img1").slideUp(3000); 16 } 17 18 $(function(){ 19 setTimeout("showAD()",3000); 20 }); 21 </script> 22 </head> 23 <body> 24 <img src="../img/1.jpg" width="100%" id="img1" style="display: none;"/> 25 </body> 26 </html>
原文：https://www.cnblogs.com/yxfyg/p/12666357.html