int[][] jagged = new int[3][]; //Jagged Aray Declaration
jagged[0] = new int[2] { 1, 2 };
jagged[1] = new int[6] { 3, 4, 5, 6, 7, 8 };
jagged[2] = new int[3] { 9, 10, 11 };
for (int row = 0; row <jagged.Length; row++)
{
  for (int element = 0;
   element <jagged[row].Length; element++)
  {
   Console.WriteLine(
     "row: {0}, element: {1}, value: {2}",
     row, element, jagged[row][element]);
  }
}
 
// 输出：
// ========
 
row: 0, element: 0, value: 1
row: 0, element: 1, value: 2
row: 1, element: 0, value: 3
row: 1, element: 1, value: 4
row: 1, element: 2, value: 5
row: 1, element: 3, value: 6
row: 1, element: 4, value: 7
row: 1, element: 5, value: 8
row: 2, element: 1, value: 9
row: 2, element: 2, value: 10
row: 2, element: 3, value: 11