简单定时器的使用
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> <script type="text/javascript"> window.onload = function(){ var time = 5; var secondEle = document.getElementById("second"); var timer = setInterval(function(){ secondEle.innerHTML = time; time--; if(time==0){ clearInterval(timer); location.href = "http://www.baidu.com"; } },1000); } </script> </head> <body> 恭喜你,注册成功。<span style="color:red" id="second">5</span>秒内如不跳转点击<a href="www.baidu.com">百度</a> </body> </html>