#!/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 sentence = input("Sentence: ") screen_width = 80 text_width = len(sentence) box_width = text_width + 6 left_margin = (screen_width - box_width) // 2 print(left_margin) print() print(' ' * left_margin + '+' + '-' * (box_width-2) + '+') print(' ' * left_margin + '| ' + ' ' * text_width + ' |') print(' ' * left_margin + '| ' + sentence + ' |') print(' ' * left_margin + '| ' + ' ' * text_width + ' |') print(' ' * left_margin + '+' + '-' * (box_width-2) + '+') print()