using System; public class TestArray { public static void Main() { int[,] xs = new int[,] { { 1, 2 }, { 3, 4 } }; foreach (int x in xs) { Console.Write("{0} ", x); } Console.WriteLine(); int[][] ys = new int[2][]; ys[0] = new int[] { 10, 20 }; ys[1] = new int[] { 30, 40 }; foreach (int[] y in ys) {…
