07 2021 档案
摘要：1 arr = [[1], [2, 3], [4, 5, 6]] 2 brr = sum(arr, []) 3 # [1, 2, 3, 4, 5, 6] 4 arr = [[1], [2, 3], [[4], [5], [6]]] 5 crr = sum(arr, []) 6 # [1, 2, 3,
阅读全文
摘要：# coding:utf-8 import numpy as np import logging logging.basicConfig(level=logging.WARNING, format='%(asctime)s-%(filename)s[line:%(lineno)d]-%(leveln
阅读全文
