function getdate()
{
    var dt=new Date();var wd="";
    switch(dt.getDay())
    {
        case 0:wd="星期天";break;
        case 1:wd="星期一";break;
        case 2:wd="星期二";break;
        case 3:wd="星期三";break;
        case 4:wd="星期四";break;
        case 5:wd="星期五";break;
        case 6:wd="星期六";break;
        default:break;
    }
    var datestr =  dt.getFullYear()+"年"+(dt.getMonth()+1)+"月"+dt.getDate()+"日"+"  "+wd+"  ";
    document.write(datestr);
}