[重点]主攻054938头,主攻160527尾.
1,排除271头,498百,018十,尾389.
2,铁卒:52,57,02,07.
3,三字现:521,526,571,576,012,026,071,076.
4,二定:5XX1,5XX6,0XX1,0XX6,0X2X,0X7X,5X2X,5X7X,XX21.
5,三定:0X21,0X26,0X71,0X76,5X21,5X26,5X71,5X76,02X1,02X6.
6,直码:0221,0226,0271,0276,0771.0776,0721,0726,5721,5726.