這篇文章主要為大家詳細(xì)介紹了jquery插件編寫countdown計(jì)時(shí)器，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下
先展示一下插件調(diào)用方式：
1. 需要先加載countdown插件對(duì)應(yīng)的css文件，也就幾行代碼而已，可以不用引入，自己手寫一樣啦
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title>jquery countdown倒計(jì)時(shí)插件</title>
<link rel="stylesheet" type="text/css" href="css/jquery.countdown-1.0.0.css"/>
</head>
css代碼內(nèi)容:
* {
margin: 0;
padding: 0;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-ms-box-sizing: border-box;
-o-box-sizing: border-box;
box-sizing: border-box;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
html,
body {
font: 24px/1.5 'Microsoft YaHei', arial, tahoma, '\5b8b\4f53', sans-serif;
font-weight: 700;
background: #efefef;
-webkit-text-size-adjust: 100%;
text-size-adjust: 100%;
}
#countdown {
width: 60%;
margin: 20% auto;
color: #ff4d4d;
}
.countdown-day,
.countdown-hour,
.countdown-minute,
.countdown-second {
display: inline-block;
margin: 0 .5rem;
background: #ff3f0f;
font-size: 2rem;
font-weight: 700;
color: #fff;
}
2.再加載js文件，在此之前得先引入jquery
<script type="text/javascript" src="js/jquery-2.2.4.min.js"></script>
<script type="text/javascript" src="js/jquery.countdown-1.0.0.min.js"></script>
3.然后定義一個(gè)顯示時(shí)間的元素，初始化配置后就可以看到計(jì)時(shí)啦
<body>
<div id="countdown"></div>
<script type="text/javascript" src="js/jquery-2.2.4.min.js"></script>
<script type="text/javascript" src="js/jquery.countdown-1.0.0.min.js"></script>
<script>
$('#countdown').countdown({
//活動(dòng)開(kāi)始時(shí)間 (可采用時(shí)間戳 或者 標(biāo)準(zhǔn)日期時(shí)間格式 "yyyy/MM/dd HH:mm:ss")
//優(yōu)先采取元素的data-stime值(該值只能為時(shí)間戳格式)
startTime: '2016/6/11 17:54:00',//活動(dòng)結(jié)束時(shí)間 (可采用時(shí)間戳 或者 標(biāo)準(zhǔn)日期時(shí)間格式 "yyyy/MM/dd HH:mm:ss")
//優(yōu)先采取元素的data-etime值(該值只能為時(shí)間戳格式)
endTime: '2016/6/11 17:55:00',
//活動(dòng)開(kāi)始前倒計(jì)時(shí)的修飾
//可自定義元素,例如"<span>距離活動(dòng)開(kāi)始倒計(jì)時(shí)還有:</span>"
beforeStart: '距離活動(dòng)開(kāi)始倒計(jì)時(shí)還有:',
//活動(dòng)進(jìn)行中倒計(jì)時(shí)的修飾
//可自定義元素,例如"<span>距離活動(dòng)截止還有:</span>"
beforeEnd: '距離活動(dòng)截止還有:',
//活動(dòng)結(jié)束后的修飾
//可自定義元素,例如"<span>活動(dòng)已結(jié)束</span>"
afterEnd: '親，活動(dòng)結(jié)束啦，請(qǐng)繼續(xù)關(guān)注哦!',
//時(shí)間格式化(可采用"ddd:hh:mm:ss、 dd:hh:mm:ss、 hh:mm:ss、 mm:ss、 ss"等)
format: 'dd:hh:mm:ss',
//活動(dòng)結(jié)束后的回調(diào)函數(shù)
callback: function() {
console.log('親，活動(dòng)結(jié)束啦，請(qǐng)繼續(xù)關(guān)注哦!');
}
});
</script>
</body>
然后附上countdown插件的源代碼，大神們看了不要見(jiàn)笑哈...
/**
* 簡(jiǎn)單的jquery購(gòu)物商城秒殺倒計(jì)時(shí)插件
* @date 2016-06-11
* @author TangShiwei
* @email 591468061@qq.com
*/
;(function(factory) {
"use strict";
// AMD RequireJS
if (typeof define === "function" && define.amd) {
define(["jquery"], factory);
} else {
factory(jQuery);
}
})(function($) {
"use strict";
$.fn.extend({
countdown: function(options) {
if (options && typeof(options) !== 'object') {
return false;
}
//默認(rèn)配置
var defaults = {
//活動(dòng)開(kāi)始時(shí)間 (可采用時(shí)間戳 或者 標(biāo)準(zhǔn)日期時(shí)間格式 "yyyy/MM/dd HH:mm:ss")
//優(yōu)先采取元素的data-stime值(該值只能為時(shí)間戳格式)
startTime: '2016/6/11 21:00:00',
//活動(dòng)結(jié)束時(shí)間 (可采用時(shí)間戳 或者 標(biāo)準(zhǔn)日期時(shí)間格式 "yyyy/MM/dd HH:mm:ss")
//優(yōu)先采取元素的data-etime值(該值只能為時(shí)間戳格式)
endTime: '2016/6/11 24:00:00',
//活動(dòng)開(kāi)始前倒計(jì)時(shí)的修飾
//可自定義元素,例如"<span>距離活動(dòng)開(kāi)始倒計(jì)時(shí)還有:</span>"
beforeStart: '距離活動(dòng)開(kāi)始倒計(jì)時(shí)還有:',
//活動(dòng)進(jìn)行中倒計(jì)時(shí)的修飾
//可自定義元素,例如"<span>距離活動(dòng)截止還有:</span>"
beforeEnd: '距離活動(dòng)截止還有:',
//活動(dòng)結(jié)束后的修飾
//可自定義元素,例如"<span>活動(dòng)已結(jié)束</span>"
afterEnd: '活動(dòng)已結(jié)束',
//時(shí)間格式化(可采用"ddd:hh:mm:ss、 dd:hh:mm:ss、 hh:mm:ss、 mm:ss、 ss"等)
format: 'dd:hh:mm:ss',
//活動(dòng)結(jié)束后的回調(diào)函數(shù)
callback: function() {
return false;
}
};
//根據(jù)時(shí)間格式渲染對(duì)應(yīng)結(jié)構(gòu)
var strategies = {
"4": function($this, timeArr, desc) {
return $this.html(desc + '<span>' + timeArr[0] + '</span>天' + '<span>' + timeArr[1] + '</span>時(shí)' + '<span>' + timeArr[2] + '</span>分' + '<span>' + timeArr[3] + '</span>秒');
},
"3": function($this, timeArr, desc) {
return $this.html(desc + '<span>' + timeArr[0] + '</span>時(shí)' + '<span>' + timeArr[1] + '</span>分' + '<span>' + timeArr[2] + '</span>秒');
},
"2": function($this, timeArr, desc) {
return $this.html(desc + '<span>' + timeArr[0] + '</span>分' + '<span>' + timeArr[1] + '</span>秒');
},
"1": function($this, timeArr, desc) {
return $this.html(desc + '<span>' + timeArr[0] + '</span>秒');
}
};
/**
* [killTime 時(shí)間差換算并進(jìn)行格式化操作]
* @param {[Object]} _this_ [jquery對(duì)象]
* @param {[Number]} sTime [當(dāng)前時(shí)間]
* @param {[Number]} eTime [結(jié)束時(shí)間]
* @param {[String]} desc [時(shí)間修飾]
* @param {[String]} format [時(shí)間格式]
* @return {[Function]} strategies [根據(jù)格式渲染對(duì)應(yīng)結(jié)構(gòu)]
*/
var killTime = function(_this_, sTime, eTime, desc, format) {
var diffSec = (eTime - sTime) / 1000;
var map = {
h: Math.floor(diffSec / (60 * 60)) % 24,
m: Math.floor(diffSec / 60) % 60,
s: Math.floor(diffSec % 60)
};
var format = format.replace(/([dhms])+/g, function(match, subExp) {
var subExpVal = map[subExp];
if (subExpVal !== undefined) {
if (match.length > 1) {
subExpVal = '0' + subExpVal;
subExpVal = subExpVal.substr(subExpVal.length - match.length);
return subExpVal;
}
} else if (subExp === 'd') {
if (match.length >= 1 && match.length < 4) {
map[subExp] = Math.floor(diffSec / (60 * 60 * 24));
var d = '00' + map[subExp];
return d.substr(d.length - match.length);
}
}
return match;
});
//將時(shí)間格式通過(guò)":"符號(hào)進(jìn)行分組
var timeArr = String.prototype.split.call(format, ':');
/**
* [render 通過(guò)分組情況渲染對(duì)應(yīng)結(jié)構(gòu)]
* @param {[Object]} _this_ [jquery對(duì)象]
* @param {[Number]} timeArrLen [時(shí)間分組后的數(shù)組長(zhǎng)度]
* @param {[Array]} timeArr [時(shí)間分組后的數(shù)組]
* @param {[String]} desc [時(shí)間修飾]
* @return {[Function]} strategies [根據(jù)數(shù)組長(zhǎng)度渲染對(duì)應(yīng)結(jié)構(gòu)]
*/
var render = function(_this_, timeArrLen, timeArr, desc) {
return strategies[timeArrLen](_this_, timeArr, desc);
};
render(_this_, timeArr.length, timeArr, desc);
}
//覆蓋默認(rèn)配置
var opts = $.extend({}, defaults, options);
return this.each(function() {
var $this = $(this);
var _timer = null;
//優(yōu)先采取元素的data-stime值(該值只能為時(shí)間戳格式)
var sTime = $this.data('stime') ? parseInt($this.data('stime'), 10) : (new Date(opts.startTime)).getTime();
//優(yōu)先采取元素的data-etime值(該值只能為時(shí)間戳格式)
var eTime = $this.data('etime') ? parseInt($this.data('etime'), 10) : (new Date(opts.endTime)).getTime();
if (_timer) {
clearInterval(_timer);
}
_timer = setInterval(function() {
var nowTime = (new Date()).getTime();
if (nowTime < sTime) {
//活動(dòng)暫未開(kāi)始
killTime($this, nowTime, sTime, opts.beforeStart, opts.format);
} else if (nowTime >= sTime && nowTime <= eTime) {
//活動(dòng)進(jìn)行中
killTime($this, nowTime, eTime, opts.beforeEnd, opts.format);
} else {
//活動(dòng)已結(jié)束
clearInterval(_timer);
$this.html(opts.afterEnd);
if (opts.callback && $.isFunction(opts.callback)) {
opts.callback.call($this);
}
}
}, 1000);
});
}
});
});
然后再來(lái)幾個(gè)效果圖吧:
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家學(xué)習(xí)jQuery有所幫助