<script language="javascript" type="text/javascript"> //保持双数 function zerofill(s) { var s = parseFloat(s.toString().replace(/(^[\s0]+)|(\s+$)/g, '')); s = isNaN(s) ? 0 : s; return (s < 10 ? '0' : '') + s.toString(); } //显示时钟 function showTime(){ var myDate = new Date(); var showStr = '现在是 '+myDate.getFullYear()+'-'+(myDate.getMonth()+1)+'-'+myDate.getDate(); showStr += ' 星期'+'日一二三四五六'.charAt(myDate.getDay())+'\r'+zerofill(myDate.getHours())+':'+zerofill(myDate.getMinutes())+':'+zerofill(myDate.getSeconds()); document.getElementById('showTimeid').innerHTML = showStr; setTimeout("showTime()",1000); } window.onload = function() { showTime(); </script> <div id="showTimeid"></div>