js获取日期中的 年,月,日

js获取日期函数使用详解及示例演示，下面是一个页面实时时钟：

function startTime() { 

 var today = new Date() 

 var years = today.getFullYear();//年 

 var months = today.getMonth();//月份从0开始 

 var d = today.getDate();//日期 

 var h = today.getHours();//小时 

 var m = today.getMinutes();//分钟 

 var s = today.getSeconds();//秒 

 var w = today.getDay();//星期从0开始 

 // add a zero in front of numbers<10 

 months = months + 1 

 months = checkTime(months) 

 d = checkTime(d) 

 m = checkTime(m) 

 s = checkTime(s) 

 var weekday = new Array(7) 

 weekday[0] = “星期日” 

 weekday[1] = “星期一” 

 weekday[2] = “星期二” 

 weekday[3] = “星期三” 

 weekday[4] = “星期四” 

 weekday[5] = “星期五” 

 weekday[6] = “星期六” 

 var w = weekday[w] 

 document.getElementById(‘timeSpan’).innerHTML = years + “年” + months + “月” 

 + d + “日 ” + w + ” ” + h + “:” + m + “:” + s; 

 t = setTimeout(‘startTime()’, 500) 

} 

function checkTime(i) { 

 if (i < 10) { 

 i = “0″ + i 

 } 

 return i 

} 

window.onload = startTime;