C#获取日期的星期名称

 private string getweekname(dayofweek week)
        {
            string weekname = "";
            switch (week)
            {
                case dayofweek.friday:
                    weekname = "周五";
                    break;
                case dayofweek.monday:
                    weekname = "周一";
                    break;
                case dayofweek.saturday:
                    weekname = "周六";
                    break;
                case dayofweek.sunday:
                    weekname = "周日";
                    break;
                case dayofweek.thursday:
                    weekname = "周四";
                    break;
                case dayofweek.tuesday:
                    weekname = "周二";
                    break;
                case dayofweek.wednesday:
                    weekname = "周三";
                    break;
                default:
                    break;
            }
            return weekname;
        }

使用方式：

　　

getweekname(datetime.now.dayofweek),