var time = 3;
var btn = $('#btn');
hehe(time,btn);
function hehe(time,btn){
var count = time;
var countdown = setInterval(CountDown, 1000);
function CountDown() {
btn.attr("disabled", true);
btn.val("请等待" + count + "秒，勿重复提交!");
if (count == 0) {
btn.val("Submit").removeAttr("disabled");
clearInterval(countdown);
}
count--;
}
}
复制hehe去用就行了。
