range(start,end, scan)

>>> range(5)
[0, 1, 2, 3, 4]
>>> range(1,5)
[1, 2, 3, 4]
>>> range(1,5,2)
[1, 3]

//reshape改陣列維度
import numpy as np

>>> rangeArray = np.arange(6,12)   //set from6 to 11
>>> rangeArray
array([ 6,  7,  8,  9, 10, 11])

>>> rangeArray.reshape((2,3))   //.reshape can change array(6) to array(2,3)
array([[ 6,  7,  8],
       [ 9, 10, 11]])

但reshape只改變沒存檔，所以rangeArray印出來還是一維陣列
>>> rangeArray
array([ 6,  7,  8,  9, 10, 11])

所以要賦值給自己才行
>>> rangeArray = rangeArray.reshape((2,3))
>>> rangeArray
array([[ 6,  7,  8],
       [ 9, 10, 11]])