p.arange(1,6,2)

print np.arange(12).reshape(3,4) # 可以改变输出形状  
print np.arange(24).reshape(2,3,4)# 2页，3行，4页

[1 3 5]
[[ 0  1  2  3]
 [ 4  5  6  7]
 [ 8  9 10 11]]
[[[ 0  1  2  3]
  [ 4  5  6  7]
  [ 8  9 10 11]]

 [[12 13 14 15]
  [16 17 18 19]
  [20 21 22 23]]]