赛马管理，可添加比赛选手，排列比赛顺序名单，进行比赛，输出成绩，保存，载入-Horse management, and can add players of the game arrange the order of the list, to competition, export performance, save, load

计算机管理对计算机信息进行封装 成绩查询运用java语言操作 猜数字-Computer Management Computer Information package query results using java language operation Caishuozi