<head> <title>jquery点击按钮后灰色倒计时并且无法提交，倒计时结束后恢复</title> <script type="text/javascript" src="http://www.daimabiji.com/statics/js/jquery.min.js"></script> <script type="text/javascript"> $(function () { $(‘#btn‘).click(function () { var count = 10; var countdown = setInterval(CountDown, 1000); function CountDown() { $("#btn").attr("disabled", true); $("#btn").val("您在" + count + " 秒后可以再次获取!"); if (count == 0) { $("#btn").val("重新获取验证码").removeAttr("disabled"); clearInterval(countdown); } count--; } }) }); </script> </head> <body> <input type="button" id="btn" value="提交" /> </body>
原文：http://www.cnblogs.com/Lin-Edge/p/4841363.html