日期:2014-05-16 浏览次数:20332 次
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>计时事件做的 表</title> <script type="text/javascript"> function startTime() { var today=new Date() var h=today.getHours() var m=today.getMinutes() var s=today.getSeconds() // add a zero in front of numbers<10 m=checkTime(m) s=checkTime(s) document.getElementById('txt').innerHTML=h+":"+m+":"+s t=setTimeout('startTime()',500) } //这里不明白checkTime()函数是怎么运行的 function checkTime(i) { if (i<10) {i="0" + i} return i } </script> </head> <body> <body onload="startTime()"> <div id="txt"></div> </body> </body> </html>