js代码实现点击按钮出现60秒倒计时_javascript技巧

function E() {
var e = $("#mobile"), t = (new Date).getTime(), n = Math.floor((t - b) / 1e3);
g && clearTimeout(g), n >= 60 ? (e.prop("readonly", !1), y = !0, $("#sendmobile").html("发送验证码").attr("disabled", !1).removeClass("btn_disabled")) : (e.prop("readonly", !0), y = !1, $("#sendmobile").attr("disabled", !0).addClass("btn_disabled").html("%s秒后可重发".sprintf(60 - n)), g = setTimeout(E, 1e3));
}
function S() {
function e() {
if (!y) return;
var e = $.trim(n.val());
l.mobile(e) ? t.attr("disabled", !1).removeClass("btn_disabled") : t.attr("disabled", !0).addClass("btn_disabled");
}
var t = $("#sendmobile"), n = $("#mobile");
n.keyup(e).blur(e), e(), t.click(function() {
var e;
t.attr("disabled") !== "disabled" && (e = "+86" + $.trim(n.val()), b = (new Date).getTime(), E(), o.post({
url: w ? "/cgi-bin/formbyskey" : "/acct/formbyticket",
data: {
form: "mobile",
action: "set",
f: "json",
mobile: e
},
mask: !1
}, function(e) {
var t = e.BaseResp.Ret;
if (t == 0) u.suc("验证码已经发送"); else {
switch (t) {
case -13:
u.err("登录超时，请重新登录");
break;
case -35:
u.err("该手机已经登记过2次，请使用别的手机号进行用户信息登记");
break;
default:
u.err("验证码发送失败");
}
b = 0;
}
}));
});
}