我想获得倒计时5小时的效果，现在只是指定了一个时间，求各位大神帮帮忙，是真的没有C币了

Question

function countTime(){
var date = new Date();//获取当前时间
var now = date.getTime();
var endDate = new Date("2019-01-17 15:00:00");//结束时间
var end = endDate.getTime();
var leftTime = end - now;
var d, h, m, s, ms;
if(leftTime >= 0) {
h = Math.floor(leftTime / 1000 / 60 / 60);
m = Math.floor(leftTime / 1000 / 60 % 60);
s = Math.floor(leftTime / 1000 % 60);
ms = Math.floor(leftTime % 1000);
if(ms < 100) {
ms = "0" + ms;
}
if(s < 10) {
s = "0" + s;
}
if(m < 10) {
m = "0" + m;
}
if(h < 10) {
h = "0" + h;
}
} else {
$(".pearl2").removeClass("pearl2").addClass("pearl");
$(".light").show();
$(".time").text("");
}
$(".time").text(h + "时"+m + "分"+s + "秒")
setTimeout(countTime, 50);
}

Answer 1

    //  var date = new Date();//获取当前时间

// var now = date.getTime();
// var endDate = new Date("2019-01-22 15:00:00");//结束时间
// var end = endDate.getTime();
// var leftTime = end - now;

var leftTime=5*60*60*1000;
function countTime(leftTime){
var d, h, m, s, ms;
if(leftTime >= 0) {
h = Math.floor(leftTime / 1000 / 60 / 60);
m = Math.floor(leftTime / 1000 / 60 % 60);
s = Math.floor(leftTime / 1000 % 60);
ms = Math.floor(leftTime % 1000);
if(ms < 100) {
ms = "0" + ms;
}
if(s < 10) {
s = "0" + s;
}
if(m < 10) {
m = "0" + m;
}
if(h < 10) {
h = "0" + h;
}
$(".time").text(h + "时"+m + "分"+s + "秒")
setTimeout(function(){
leftTime=leftTime-1000;
sessionStorage.setItem('time',leftTime);
countTime(parseInt(sessionStorage.getItem('time')));
//countTime(leftTime);
}, 500);
} else {
$(".time").text("倒计时结束");
}
}
sessionStorage.getItem('time')?countTime(parseInt(sessionStorage.getItem('time'))):countTime(leftTime);

//countTime(leftTime);