因此，您希望将字符串拆分为
width字母块，而不是按字母输入。采取公认的答案：
def chunkstring(string, length): return (string[0+i:length+i] for i in range(0, len(string), length))sentence = input('Sentence: ')width = int(input('Width: '))print('+-' + '-' * width + '-+')for line in chunkstring(sentence, width): print('| {0:^{1}} |'.format(line, width))print('+-' + '-'*(width) + '-+')示例运行：
Sentence: You are only young once, but you can stay immature indefinitely. Width: 26+----------------------------+| You are only young once, b || ut you can stay immature i || ndefinitely. |+----------------------------+
