使用库numpy
创建一个二维数组
import numpy as nparray = np.arange(24).reshape((4,6))"""array([[ 0, 1, 2, 3, 4, 5],[ 6, 7, 8, 9, 10, 11],[12, 13, 14, 15, 16, 17],[18, 19, 20, 21, 22, 23]])"""
行与列随机抽取类似
行随机抽取
row_rand_array = np.arange(array.shape[0])np.random.shuffle(row_rand_array)row_rand = array[row_rand_array[0:2]]"""row_rand:array([[12, 13, 14, 15, 16, 17],[ 0, 1, 2, 3, 4, 5]])"""
列随机抽取
col_rand_array = np.arange(array.shape[1])np.random.shuffle(col_rand_array)col_rand = array[:,col_rand_array[0:2]]"""col_rand:array([[ 1, 5],[ 7, 11],[13, 17],[19, 23]])"""
