Html倒计时图片代码？_随笔

function sleep(s){

s = s || 0

s = parseInt(s) * 1000

let now = +new Date()

let timer = null

return new Promise((resolve, reject)=>{

timer = setInterval(()=>{

if( now + s < +new Date()){

clearInterval(timer)

resolve(true)

}

}, 10)

})

}

window.onload =async function(){

for(var i=5i>0i--)

await sleep(1)

alert('显示图片')

}

</script>

<!doctype html>

<html>

<head>

function GetRTime(){

var EndTime= new Date('2014/08/12 16:00:00') //截止时间

var NowTime = new Date()

var t =EndTime.getTime() - NowTime.getTime()

var d=Math.floor(t/1000/60/60/24)

var h=Math.floor(t/1000/60/60%24)

var m=Math.floor(t/1000/60%60)

var s=Math.floor(t/1000%60)

document.getElementById("t_d").innerHTML = d + "天"

document.getElementById("t_h").innerHTML = h + "时"

document.getElementById("t_m").innerHTML = m + "分"

document.getElementById("t_s").innerHTML = s + "秒"

}

setInterval(GetRTime,1000)

</script>

</head>

<body>

</div>

</body>

</html>

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Html倒计时图片代码？