#!/usr/bin/env python3 # 序列相加 print([1, 2, 3, 4]+[6, 7, 8, 9]) # [1,2,3,4,5,6,7,8,9] # 乘法 print([42]*10) # [42, 42, 42, 42, 42, 42, 42, 42, 42, 42] # None、空列表和初始化
