js时间脚本

window.onload=function(){
    var time = new Date();
    var year = time.getFullYear();
    var month = time.getMonth()+1;
        if(month<10){
            month="0"+month;
        }
    var day = time.getDate();
        if(day<10){
            day="0"+day;
        }
    var week = time.getDay();
    switch(week){
        case 0:
            week = "星期日";
            break;
        case 1:
            week = "星期一";
            break;
        case 2:
            week = "星期二";
            break;
        case 3:
            week = "星期三";
            break;
        case 4:
            week = "星期四";
            break;
        case 5:
            week = "星期五";
            break;
        case 6:
            week = "星期六";
            break;
    }
    var h = time.getHours();
    var m = time.getMinutes();
    var s = time.getSeconds();
    var now = year+"年"+month+"月"+day+"日"+"<br>"+week+"<br>"+h+"时"+m+"分"+s+"秒"+"<br>";
    document.getElementById("time").innerHTML = now;
}
    setInterval(getDate,1000);