摘要: 方法一: lists = [[1,2,3],[4,5,6]] print([i[1] for i in lists]) 方法二: import numpy as np group = [[1,2],[2,3],[4,5]] ar = np.array(group) print(ar[:,0]) 阅读全文
posted @ 2023-06-02 17:51 g731717 阅读(140) 评论(0) 推荐(0)