若字符串 s = 'hello world',则语句 s.ljust(15, '.') 和 s.rjust(15) 的输出结果为?选项: A:'....hello world'' hello world'; B:'hello world....'' hello world'; C:'hello world....''hello world '; D:'hello world....''hello world' 语句 字符串 发布时间:2024-04-03 17:44:09