<!DOCTYPEhtml><html><head><metacharset="utf-8"><title></title><scriptsrc="js/jquery.js"></script><script>window.onload=function(){document.getElementById('btnok').onclick=function(){//1.显示所有异常元素//$('div:hidden').show(3000);//2.隐藏所有可见元素$('div:visible').hide(3000);}}</script></head><body><inputtype="button"id="btnok"value="匹配"><hr><div></div><div></div></body></html>