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js---10时间类

2024-09-21 00:17:18   218人阅读

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script>
/*
    系统时间对象
*/
// alert( new Date() );        // 当前系统的时间对象
// myTime typeof   object
window.onload = function () {
    var oBody = document.body;
    setInterval( fnTime, 1000 );
    fnTime ();
    function fnTime () {
        var myTime = new Date();
        // number
        var iYear = myTime.getFullYear();
        var iMonth = myTime.getMonth()+1;
        var iDate = myTime.getDate();
        var iWeek = myTime.getDay();
        var iHours = myTime.getHours();
        var iMin = myTime.getMinutes();
        var iSec = myTime.getSeconds();
        var str = ‘‘;
        if( iWeek === 0 ) iWeek = ‘星期日‘;
        if( iWeek === 1 ) iWeek = ‘星期一‘;
        if( iWeek === 2 ) iWeek = ‘星期二‘;
        if( iWeek === 3 ) iWeek = ‘星期三‘;
        if( iWeek === 4 ) iWeek = ‘星期四‘;
        if( iWeek === 5 ) iWeek = ‘星期五‘;
        if( iWeek === 6 ) iWeek = ‘星期六‘;
        str = iYear+ ‘年‘ +iMonth+‘月‘+iDate+‘日 ‘+iWeek+‘ ‘+ toTwo(iHours)+‘ : ‘+ toTwo(iMin)+‘ : ‘+ toTwo(iSec);
        oBody.innerHTML = str;
    }
};
// alert( toTwo(5) );            // ‘05‘
// alert( toTwo(15) );        // ‘15‘
function toTwo ( n ) {
    return n < 10 ?  ‘0‘ + n : ‘‘ + n;
}

</script>

</head>

<body style="font-size:60px;">
</body>
</html>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script>
window.onload = function () {
    var oBody = document.body;
    var oP = document.getElementById(‘time‘);
    var aImg = document.getElementsByTagName(‘img‘);
    setInterval( fnTime, 1000 );
    fnTime ();
    function fnTime () {
        var myTime = new Date();
        var iHours = myTime.getHours();
        var iMin = myTime.getMinutes();
        var iSec = myTime.getSeconds();
        var str = toTwo(iHours)+toTwo(iMin)+toTwo(iSec);
        // str = ‘214204‘;
        oP.innerHTML = str;
        // str.charAt(5)
        // aImg[4].src = http://www.mamicode.com/‘img/‘ + str.charAt(4) + ‘.JPG‘;
        // aImg[5].src = http://www.mamicode.com/‘img/‘ + str.charAt(5) + ‘.JPG‘;
        for ( var i=0; i<str.length; i++ ) {
            aImg[i].src = ‘img/‘ + str.charAt(i) + ‘.JPG‘;
        }
    }
};

function toTwo ( n ) {
    return n < 10 ?  ‘0‘ + n : ‘‘ + n;
}
</script>
</head>
<body>
<p id="time" style="font-size:60px;"></p>
<img src="http://www.mamicode.com/img/0.JPG" />
<img src="http://www.mamicode.com/img/0.JPG" />
<img src="http://www.mamicode.com/img/0.JPG" />
<img src="http://www.mamicode.com/img/0.JPG" />
<img src="http://www.mamicode.com/img/0.JPG" />
<img src="http://www.mamicode.com/img/0.JPG" />
</body>
</html>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>

<script>
// 现在的时间点（在变）
// 未来的时间点（不变）
var iNow = new Date();//返回毫秒数
// var iNew = new Date( 2013, 10, 27,  21,56,0  );

var iNew = new Date( ‘November 27,2013 22:3:0‘ );

var t = Math.floor((iNew - iNow)/1000);//floor() 去掉小数点
// 毫秒 - 秒
var str = Math.floor(t/86400)+‘天‘+Math.floor(t%86400/3600)+‘时‘+Math.floor(t%86400%3600/60)+‘分‘+t%60+‘秒‘;

alert( str );

// 天：Math.floor(t/86400)
// 时：Math.floor(t%86400/3600)
// 分：Math.floor(t%86400%3600/60)
// 秒：t%60

// 数字形式：new Date( 2013,4,1,9,48,12 );
// 字符串形式：new Date(‘June 10,2013 12:12:12‘);

// January、February、March、April、May、June、
// July、August、September、October、November、December
</script>

</head>

<body>
</body>
</html>

 

js---10时间类


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