具体过滤大底推荐如下：

百万位四码推荐0,4,6,7==>火胆6

十万位四码推荐0,5,7,8==>火胆8

万位四码推荐1,4,6,8==>火胆8

千位四码推荐0,1,6,8==>火胆0

百位四码推荐0,1,6,7==>火胆7

十位四码推荐0,1,4,5==>火胆5

个位四码推荐4,5,7,8==>火胆8