我需要得到这个:
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9]
[1,] 1 0 2 0 3 0 4 0 5
[2,] 0 0 0 0 0 0 0 0 0
[3,] 6 0 7 0 8 0 9 0 10
[4,] 0 0 0 0 0 0 0 0 0
[5,] 11 0 12 0 13 0 14 0 15
[6,] 0 0 0 0 0 0 0 0 0
[7,] 16 0 17 0 18 0 19 0 20 …