Posted in Javascript onFebruary 28, 2017
本文实例讲述了JS基于面向对象实现的多个倒计时器功能。分享给大家供大家参考，具体如下：
运行效果图如下：
实现代码如下：
代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JavaScript测试文件</title>
</head>
<body>
<div><span id="hour0">0</span>小时</div>
<div><span id="minute0">0</span>分</div>
<div><span id="seconds0">10</span>秒</div>
<br/>
<div><span id="hour1">1</span>小时</div>
<div><span id="minute1">31</span>分</div>
<div><span id="seconds1">31</span>秒</div>
<br/>
<div><span id="hour2">2</span>小时</div>
<div><span id="minute2">32</span>分</div>
<div><span id="seconds2">32</span>秒</div>
<br/>
<div><span id="hour3">3</span>小时</div>
<div><span id="minute3">33</span>分</div>
<div><span id="seconds3">33</span>秒</div>
<br/>
<div><span id="hour4">4</span>小时</div>
<div><span id="minute4">34</span>分</div>
<div><span id="seconds4">34</span>秒</div>
<br/>
</body>
</html>
<script type="text/javascript">
//名山计时器：
function msTimeCount(){
this._hour=0; //“小时”数
this._minute=0; //“分”数
this._seconds=0; //“秒”数
//
this._hourHtmlObj={};//“小时”html对象
this._minuteHtmlObj={};//“分”html对象
this._secondsHtmlObj={};//“秒”html对象
//
this._totalSeconds=0;//总秒数
};
msTimeCount.prototype={
//1.获取对象
$:function(ID){
return document.getElementById(ID);
},
//2.初始化：
/*
* arrTime: 传入时间数组，格式为[1,30,30]，代表 1小时30分30秒;
* arrHtmlObj: 更新时间数据的Html对象数组，格式为["hour","minute","seconds"];
*/
init:function(arrTime,arrHtmlObj){
var _this=this;
_this._hour=parseInt(arrTime[0]);
_this._minute=parseInt(arrTime[1]);
_this._seconds=parseInt(arrTime[2]);
_this._hourHtmlObj=_this.$(arrHtmlObj[0]);
_this._minuteHtmlObj=_this.$(arrHtmlObj[1]);
_this._secondsHtmlObj=_this.$(arrHtmlObj[2]);
_this._totalSeconds=parseInt(_this._hour*60*60+_this._minute*60+_this._seconds);
//开始计时：
_this.timeCount();
},
//3.计时器：
timeCount:function(){
var _this=this;
var tmpTimeCount=setInterval(
function(){
_this._totalSeconds--;
//alert(_this._totalSeconds);
_this.refreshTime();
if(_this._totalSeconds<1){
clearInterval(tmpTimeCount);
return;
}
}
,1000);
},
//4.刷新页面时间:
refreshTime:function(){
var _this=this;
if(_this._totalSeconds>0){
_this._hour=parseInt(_this._totalSeconds/3600);
_this._minute=parseInt((_this._totalSeconds-_this._hour*3600)/60);
_this._seconds=_this._totalSeconds-_this._hour*3600-_this._minute*60;
}else{
_this._hour=_this._minute=_this._seconds=0;
}
_this._hourHtmlObj.innerHTML=_this._hour;
_this._minuteHtmlObj.innerHTML=_this._minute;
_this._secondsHtmlObj.innerHTML=_this._seconds;
}
}
var timeCount0=new msTimeCount();
timeCount0.init([0,0,10],["hour0","minute0","seconds0"]);
var timeCount1=new msTimeCount();
timeCount1.init([1,31,31],["hour1","minute1","seconds1"]);
var timeCount2=new msTimeCount();
timeCount2.init([2,32,32],["hour2","minute2","seconds2"]);
var timeCount3=new msTimeCount();
timeCount3.init([3,33,33],["hour3","minute3","seconds3"]);
var timeCount4=new msTimeCount();
timeCount4.init([4,34,34],["hour4","minute4","seconds4"]);
</script>
JS基于面向对象实现的多个倒计时器功能示例
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