var i = 5;
var intervalid;
intervalid = setInterval("fun()", 1000);
function fun() {
if (i == 0) {
window.location.href = "<%=basePath%>home";
clearInterval(intervalid);
}
document.getElementById("mes").innerhtml = i;
i--;
}
<span id="littleTip">将在(<strong id="mes">5</strong>)秒钟后返回首页!</span></div>
来源: http://www.bubuko.com/infodetail-1958631.html