int[] myIntArray; 

myIntArray = new int[3];
myIntArray = new int[] { 1, 2, 3 };
int[] myIntArray = { 1, 2, 3 }; //当使用这种方法对数组进行初始化时，只能在声明变量数组时使用，不能在声明数组之后使用。
数组的访问：

      int[] myIntArray = { 1, 2, 3 };
      Console.WriteLine("intValue = {0}", myIntArray[0]);
      Console.Read();

static void Main(string[] args)
    {
      //声明一个二维数组 两行三列
      int[,] myIntArray1;
      myIntArray1 = new int[2, 3];
      myIntArray1[0, 0] = 1;
      myIntArray1[0, 1] = 11;
      myIntArray1[0, 2] = 111;
      myIntArray1[1, 0] = 2;
      myIntArray1[1, 1] = 22;
      myIntArray1[1, 2] = 222;
      Console.WriteLine("{0},{1},{2}", myIntArray1[0, 0], myIntArray1[0, 1], myIntArray1[0, 2]);
      Console.WriteLine("{0},{1},{2}", myIntArray1[1, 0], myIntArray1[1, 1], myIntArray1[1, 2]);
      Console.Read();
    }

static void Main(string[] args)
    {
      //声明一个二维数组 三行三列
      int[,] myIntArray2;
      myIntArray2 = new int[,] { { 1, 11, 111 }, { 2, 22, 222 }, { 3, 33, 333 }, { 4, 44, 444 } };

      Console.WriteLine("{0},{1},{2}", myIntArray2[0, 0], myIntArray2[0, 1], myIntArray2[0, 2]);
      Console.WriteLine("{0},{1},{2}", myIntArray2[1, 0], myIntArray2[1, 1], myIntArray2[1, 2]);
      Console.WriteLine("{0},{1},{2}", myIntArray2[2, 0], myIntArray2[2, 1], myIntArray2[2, 2]);
      Console.WriteLine("{0},{1},{2}", myIntArray2[3, 0], myIntArray2[3, 1], myIntArray2[3, 2]);
      Console.Read();
    }

static void Main(string[] args)
    {
      //声明一个三维数组 三行三列
      int[, ,] myIntArray3;
      myIntArray3 = new int[,,] { { {1,1}, {11,11}, {111,111} }, 
                    { {2,2}, {22,22}, {222,222} }, 
                    { {3,3}, {33,33}, {333,333} }, 
                    { {4,4}, {44,44}, {444,444} } 
                   };

      Console.WriteLine("{0},{1},{2},{3},{4},{5}", myIntArray3[0, 0, 0], myIntArray3[0, 0, 1], myIntArray3[0, 1, 0], myIntArray3[0, 1, 1], 
        myIntArray3[0, 2, 0], myIntArray3[0, 2, 1]);
      Console.WriteLine("{0},{1},{2},{3},{4},{5}", myIntArray3[1, 0, 0], myIntArray3[1, 0, 1], myIntArray3[1, 1, 0], myIntArray3[1, 1, 1], 
        myIntArray3[1, 2, 0], myIntArray3[1, 2, 1]);
      Console.WriteLine("{0},{1},{2},{3},{4},{5}", myIntArray3[2, 0, 0], myIntArray3[2, 0, 1], myIntArray3[2, 1, 0], myIntArray3[2, 1, 1],
        myIntArray3[2, 2, 0], myIntArray3[2, 2, 1]);
      Console.WriteLine("{0},{1},{2},{3},{4},{5}", myIntArray3[3, 0, 0], myIntArray3[3, 0, 1], myIntArray3[3, 1, 0], myIntArray3[3, 1, 1],
        myIntArray3[3, 2, 0], myIntArray3[3, 2, 1]);
      Console.Read();
    }

static void Main(string[] args)
    {
      //声明一个锯齿数组 三行
      int[][] myIntArray4;
      myIntArray4 = new int[3][];

      myIntArray4[0] = new int[] { 1,11,111};
      myIntArray4[1] = new int[2] { 2, 22 };
      myIntArray4[2] = new int[] { 3,33,333,3333};

      for (int i = 0; i < myIntArray4.Length; i++)
      {
        for (int j = 0; j < myIntArray4[i].Length; j++)
        {
          Console.WriteLine("{0}",myIntArray4[i][j]);
        }
      }
      Console.Read();
    }