stringweekstr=DateTime.Now.DayOfWeek.ToString();
switch(weekstr)
{
case"Monday":weekstr="星期一";break;
case"Tuesday":weekstr="星期二";break;
case"Wednesday":weekstr="星期三";break;
case"Thursday":weekstr="星期四";break;
case"Friday":weekstr="星期五";break;
case"Saturday":weekstr="星期六";break;
case"Sunday":weekstr="星期日";break;
}