摘要: 1 name = "my name is {name} and i am {year} old" 2 3 print(name.capitalize()) 4 print(name.count("a")) #打印name 中 a 出现的次数 5 print(name.center(50,"-")) 阅读全文
posted @ 2017-06-09 09:28 tno 阅读(126) 评论(0) 推荐(0) 编辑