使用像TreeMap这样的有序集合,它按照键的自然顺序保存其条目(键值映射)。因为,您希望对高分进行排序,将分数作为键和玩家名称作为其值。// instantiate your sorted collectionMap highestScores new TreeMap();// setup a file readerBuffe…
1,修改配置文件 # inittab is only used by upstart for the default runlevel. # # ADDING OTHER CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM. # # System initialization is started by /etc/init/rcS.conf # # Individual runlevels are started by /etc/init/…
今天select * from 表名 where to_days(时间字段名) to_days(now());昨天SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) – TO_DAYS( 时间字段名) < 1近7天SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) < date(时间字段名)近30天SELECT * FROM 表名 wh…