[重点]主攻274905头,主攻052738尾.
1,排除头,271百,382十,380尾381
2,铁卒:24.29,74,79.
3,三字现:240,245.290,295,407,745,790,795.
4,二定.X42X,X47X,X92X.X97X, 4XX0, 4XX5, 9XX0, 9XX5.
5,三定,X420,X425,X470,X475,X920,X925,X970,X975,94X0,94X5.
6,直码:9420,9425,9470,9475,9920.9925,4420,4425,4470,4475.