mgo
已收录文章：1篇
-
问题内容 where := bson.M{"$match": bson.M{"user_id": userId, "bank_id": bankId, "knowledge_points": bson.M{"$in": Knowledge}, "difficulty": difficulty}} num := bson.M{"$sample": bson.M{"size": questionNum}} err := repo.collection().Pipe([]bson.M{whe341 收藏