js 实现倒计时效果的实例代码分享
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2022-04-19 13:47:30
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<span id="hour">01</span>
<span>:</span>
<span id="minute">01</span>
<span>:</span>
<span id="second">59</span>
</body>
<script type="text/javascript" src = "../jquery-1.11.0.min.js?1.1.11"></script>
<script type="text/javascript">
var getHour = $('#hour').text();
var getMin = $('#minute').text();
var getSec = $('#second').text();
setInterval(function() {
var allTime = parseInt(getSec) + parseInt(getMin * 60) + parseInt(getHour * 3600);
allTime--;
if (getSec > 0) {
getSec--;
if (getSec < 10) {
getSec = '0' + getSec;
// console.log(getSec)
}
$('#second').html(getSec)
} else {
getSec = 59;
}
if (allTime % 60 == 0) {
getMin--;
// console.log(getMin)
if (getMin >= 0) {
if (getMin < 10) {
getMin = '0' + getMin;
}
$('#minute').html(getMin)
} else {
getMin = 30;
$('#minute').html(getMin)
}
}
if (allTime % 3600 == 0) {
getHour--;
if (getHour >= 0) {
if (getHour < 10) {
getHour = '0' + getHour;
}
$('#hour').html(getHour)
} else {
getHour = 30;
$('#hour').html(getHour)
}
}
}, 1)
</script>
</html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<span id="hour">01</span>
<span>:</span>
<span id="minute">01</span>
<span>:</span>
<span id="second">59</span>
</body>
<script type="text/javascript" src = "../jquery-1.11.0.min.js?1.1.11"></script>
<script type="text/javascript">
var getHour = $('#hour').text();
var getMin = $('#minute').text();
var getSec = $('#second').text();
setInterval(function() {
var allTime = parseInt(getSec) + parseInt(getMin * 60) + parseInt(getHour * 3600);
allTime--;
if (getSec > 0) {
getSec--;
if (getSec < 10) {
getSec = '0' + getSec;
// console.log(getSec)
}
$('#second').html(getSec)
} else {
getSec = 59;
}
if (allTime % 60 == 0) {
getMin--;
// console.log(getMin)
if (getMin >= 0) {
if (getMin < 10) {
getMin = '0' + getMin;
}
$('#minute').html(getMin)
} else {
getMin = 30;
$('#minute').html(getMin)
}
}
if (allTime % 3600 == 0) {
getHour--;
if (getHour >= 0) {
if (getHour < 10) {
getHour = '0' + getHour;
}
$('#hour').html(getHour)
} else {
getHour = 30;
$('#hour').html(getHour)
}
}
}, 1)
</script>
</html>
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