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<html> <head> <title>js模拟时钟</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body onLoad="setInterval(setTimeSpan,1000);"> <span style="font-size: 25px;" id="timeSpan"></span> </body> <script type="text/javascript"> function setTimeSpan() { var date = new Date(); timeSpan.innerHTML = date.format('现在是：yyyy年MM月dd日 hh:mm:ss'); } Date.prototype.format = function(format) { var o = { "M+" : this.getMonth() + 1, //month "d+" : this.getDate(), //day "h+" : this.getHours(), //hour "m+" : this.getMinutes(), //minute "s+" : this.getSeconds(), //second "q+" : Math.floor((this.getMonth() + 3) / 3), //quarter "S" : this.getMilliseconds() //millisecond } if (/(y+)/.test(format)) format = format.replace(RegExp.$1, (this.getFullYear() + "") .substr(4 - RegExp.$1.length)); for ( var k in o) if (new RegExp("(" + k + ")").test(format)) format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length)); return format; } </script> </html>
转自http://blog.csdn.net/itmyhome1990/article/details/42673009
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