自定义日期格式转换

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>show_time</title>
<style>
body {
    padding-top: 40px;
}
#main {
    margin: auto;
    text-align: center;
    300px;
    height: 200px;
    background-color: #0CC;
}
#show_time0,#show_time {
300px;
height:100px;
    color: #FFF;
}
</style>

<script>
//定义转换日期格式函数：Format()
Date.prototype.Format = function (fmt) {
    var o = {
        "M+": this.getMonth() + 1, //月份
        "d+": this.getDate(), //日
        "h+": this.getHours(), //小时
        "m+": this.getMinutes(), //分
        "s+": this.getSeconds(), //秒
        "q+": Math.floor((this.getMonth() + 3) / 3), //季度
        "S": this.getMilliseconds() //毫秒
    };
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
    if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
}
//获取系统日时并转换格式
var start_time = new Date().Format("yyyyMMdd"+"000000");

</script>

</head>

<body>
<div id="main">
<div id="show_time0" style="">
<script>
//将时间显示到页面中
setTimeout("show_time0.innerHTML=start_time;",1000);
</script>
</div>
</div>
</body>

</html>