L3n95

或与 numpy

import numpy as np
def odd(n):
   return np.arange(1, 2*n, 2)


odd(10) -> array([ 1,  3,  5,  7,  9, 11, 13, 15, 17, 19])
odd(12) -> array([ 1,  3,  5,  7,  9, 11, 13, 15, 17, 19, 21, 23])