[子牙神算]3d21年028期规律分析包星：**5,*7*
- 独胆
- 5
- 双胆
- 2,5
- 三胆
- 2,5,6
- 杀一码
- 9
- 杀二码
- 0,9
- 杀三码
- 0,1,9
- 五码组选
- 2,4,5,6,7
- 六码组选
- 2,3,4,5,6,7
- 定三跨度
- 1,4,6
- 杀二和尾
- 4,9
- 定四和值
- 5,10,17,23
- 包星两组
- **5,*7*
- 直选定位
- 578,047,459
- 定位5*5*5
- 45678,01457,14579
- 定位杀四码
- 1239,3689,2368
- 胆拖
- 胆码：2,拖码：3,4,5,7,8
- 组选五注
- 328,475,678,685,735
- 组选十注
- 322,328,475,522,545,634,678,685,735,876
- 组选40注
- 225,227,233,234,235,237,238,244,245,246,247,248,255,257,258,266,268,278,335,336,345,357,366,368,445,446,457,466,467,556,558,567,568,577,578,588,667,668,677,678