{
    now = new Date() //定义新对象，new具有Date的性质
　　if (now.getDay() == 0) return ("星期日")
　　if (now.getDay() == 1) return ("星期一")
　　if (now.getDay() == 2) return ("星期二")
　　if (now.getDay() == 3) return ("星期三")
　　if (now.getDay() == 4) return ("星期四")
　　if (now.getDay() == 5) return ("星期五")
　　if (now.getDay() == 6) return ("星期六")
}
 
function showdate() //显示系统日期
{
 
　　var now=new Date();
 
　　var year = now.getYear();
 
　　var month = now.getMonth()+1;
 
　　var day = now.getDate();
 
　　return year+"年"+month+"月"+day+"日";
}