$(function(){
    var myDate = new Date;
    var year = myDate.getFullYear(); //获取当前年
    var mon = myDate.getMonth() + 1; //获取当前月
    var date = myDate.getDate(); //获取当前日
    var week = myDate.getDay();
    var weeks = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
    console.log(year, mon, date, weeks[week])
    $(".header .date").html("<span>"+weeks[week] + "</span>" + year + "年" + mon + "月" + date + "日" );
})