C# 获取中文星期的方法

//方法一
  public string Week()
        {
            string[] weekdays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };
            string week = weekdays[Convert.ToInt32(DateTime.Now.DayOfWeek)];
            return week;
        }

//方法二
 string weekstr = 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;
             }
//方法3
lbDay.Text = System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(DateTime.Now.DayOfWeek);