분노의 챔질

private string GetDayOfWeek(DateTime dateTime) { var d = dateTime.DayOfWeek; string ret = string.Empty; switch (d) { case DayOfWeek.Friday: ret = "金"; break; case DayOfWeek.Monday: ret = "月"; break; case DayOfWeek.Saturday: ret = "土"; break; case DayOfWeek.Sunday: ret = "日"; break; case DayOfWeek.Thursday: ret = "木"; break; case DayOfWeek.Tuesday: ret = "火"; break; case DayOfWeek.Wednesday: ret ..