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A small program that displays the clock based on the server time as a starting point_javascript skills

WBOYOriginal: 2016-05-16 18:51:332046browse

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我在做OA的一个考勤程序时，要动态显示服务器的时间，让员工知道当前是否可以下班，而客户机由于种种原因时间与服务器并不一致，所以不能用上面的代码，改进了一下：

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最后加上一个meizz的格式化函数（略有修正），最终版如下：

<span id="curTime"></span> 
<script type="text/javascript"><!--

// 页面要开始计时的日期（一般是服务器日期）,比如2007-01-12 11:34:55开始计时 
var beginAdd = new Date(2007,0,12,11,34,55); 
var beginDate = new Date(); 
    function abc() { 
     var now = new Date(); 
     var diff = (now - beginDate); 
     beginAdd.setMilliseconds(beginAdd.getMilliseconds() + diff); 
     beginDate = now; 
document.getElementById("curTime").innerHTML = beginAdd.format("yyyy年MM月dd日 hh:mm:ss 星期W"); 
} 
    setInterval("abc();",1000);

Date.prototype.format = function(format) { 
     var obj = 
     { 
     "M+": this.getMonth() + 1, //返回实际月份 
     "d+": this.getDate(), //返回当月第几天 
     "h+": this.getHours(), //返回小时 
     "m+": this.getMinutes(), //返回分钟 
     "s+": this.getSeconds(), //返回秒 
     "q+": Math.floor((this.getMonth() + 3) / 3), //返回第几个季度 
     "S": this.getMilliseconds(), //返回毫秒 
     "w": this.getDay(), //返回星期几，0为星期日 
     "W": "日一二三四五六".charAt(this.getDay()) //返回星期几的中文表示 
     }

// 年的单独处理 
     if (/(y+)/.test(format)) 
     format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length)); 
     // 其它格式处理 
     for (var k in obj) { 
     if (new RegExp("(" + k + ")").test(format)) 
     format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? obj[k] : ("00" + obj[k]).substr(("" + obj[k]).length)); 
     } 
     return format; 
    } 
// --></script>

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