C# 针对List去重处理

static public List<List<string>> DistinctList(List<List<string>> OriginalListCrpcps)
        {
            List<string> WholeFrm = new List<string>();
            List<List<string>> DistinctListCrpcps = new List<List<string>>();
            foreach (List<string> Original in OriginalListCrpcps)
            {
                foreach (string ori in Original)
                {
                    if (!WholeFrm.Contains(ori))
                    {
                        WholeFrm.Add(ori);
                    }
                }
                if (DistinctListCrpcps.Count() == 0)
                {
                    DistinctListCrpcps.Add(Original);
                    continue;
                }
                bool cur = false;
                foreach (List<string> Distinct in DistinctListCrpcps)
                {
                    foreach (var Ori in Original)
                    {
                        if (!Distinct.Contains(Ori))
                        {
                            cur = true;
                        }
                    }
                }
                if (cur)
                {
                    DistinctListCrpcps.Add(Original);
                }
            }
            //所有的切片，如果这个切片被其他切片包含，那么删除这个切片，
            //这个切片里面所有的东西都在另一个切片里面
            List<List<string>> SimpleDistinctListCrpcps = new List<List<string>>();
            foreach (var Dis in DistinctListCrpcps)
            {
                foreach (var DisOther in DistinctListCrpcps)
                {
                    //除了本身，如果这个的所有东西都在另一个切片里面，那么这个就要删除
                    if ((Dis != DisOther) && (Dis.All(x => DisOther.Contains(x))))
                    {
                        SimpleDistinctListCrpcps.Add((Dis));
                    }
                }
            }
            foreach (var sim in SimpleDistinctListCrpcps)
            {
                DistinctListCrpcps.Remove(sim);
            }
            return DistinctListCrpcps;
        }