C#交错数组

 1 public static void Main(string[] args)
 2         {
 3 
 4             int[][] arr = new int[5][];
 5             arr[0] = new int[8];
 6             arr[1] = new int[8];
 7             arr[2] = new int[8];
 8             arr[3] = new int[8];
 9             arr[4] = new int[8];
10 
11             Random rdm = new Random();
12 
13             for (int i = 0; i < arr.Length; i++)
14             {
15                 for (int j = 0; j < 8; j++)
16                 {
17                     arr[i][j] = rdm.Next(31);
18                 }
19             }
20 
21             foreach (int[]a in arr)
22             {
23                 foreach (int b in a)
24                 {
25                     Console.Write("{0},", b);
26                 }
27                 Console.WriteLine("");
28             }
29       
30         }