--ascending(오름차순) string[] ArrStr = new string[] { "c", "a", "d", "b" }; Array.Sort(ArrStr); foreach (string str in ArrStr) { MessageBox.Show(str); } --descending(내림차순) string[] ArrStr = new string[] { "c", "a", "d", "b" }; Array.Sort(ArrStr); Array.Reverse(ArrStr); foreach (string str in ArrStr) { MessageBox.Show(str); }