用js方式获取时间

function getTime(){
    var dayArr = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
    var  myDate = new Date();
    var year = myDate.getFullYear();//获取年份并以四位数返回
    var month = myDate.getMonth();
    var date = myDate.getDate();
    var day = myDate.getDay();//获取今天是星期几（将0-6转化为对应的星期格式）
    var hour = myDate.getHours();
    var minute = myDate.getMinutes();
    var second = myDate.getSeconds();
    month = (month < 10 ?  "0" + month :month);
    date = (date < 10 ? "0" + date : date);
    day = dayArr[day];
    hour = (hour < 10 ? "0" + hour : hour);
    minute = (minute < 10 ? "0" + minute : minute);
    second = (second < 10 ? "0" + second : second);
    document.getElementById("qc_time").innerHTML = year +"年" + month +"月"+ date + "日"
        + "  " + day + "  " + hour + ":" + minute + ":" + second;
    setTimeout("getTime()",1000);
}
onload = getTime();