public string KouForgetAnotherName(
            [KouPluginArgument(Name = "别名ID")] List <int> ids)
        {
            if (ids.IsNullOrEmptySet())
            {
                return("这是叫我忘掉什么嘛");
            }
            var result = new StringBuilder();

            foreach (var i in ids)
            {
                var alias = SongAlias.SingleOrDefault(a => a.AliasID == i);
                if (alias == null)
                {
                    result.Append($"\n不记得ID{i}");
                }
                else if (alias.SourceUser != null && alias.SourceUser != CurrentPlatformUser &&
                         !CurrentPlatformUser.HasTheAuthority(Authority.BotManager))
                {
                    result.Append($"\nID{i}是别人贡献的,不可以删噢");
                }
                else
                {
                    result.Append($"\n忘记了{alias.ToString(FormatType.Brief)}");
                    alias.DeleteThis();
                };
            }

            return(result.ToString().TrimStart());
        }
        public string KouLearnAnotherName(
            [KouPluginArgument(Name = "歌曲名等")] string songName,
            [KouPluginArgument(Name = "要学的歌曲别名")] string songAnotherName)
        {
            if (songName.IsNullOrWhiteSpace() || songAnotherName.IsNullOrWhiteSpace())
            {
                return("好好教我嘛");
            }
            var haveTheAlias = SongAlias.SingleOrDefault(p => p.Alias == songAnotherName);

            if (haveTheAlias != null)
            {
                return($"可是我之前就知道{haveTheAlias.CorrespondingSong.SongTitle}可以叫做{songAnotherName}了");
            }

            var song = SongAlias.SingleOrDefault(p => p.Alias == songName)?.CorrespondingSong;

            if (song == null)
            {
                var satisfiedSongs = Song.Find(s =>
                                               s.SongId.ToString() == songName ||
                                               s.SongTitle.Contains(songName,
                                                                    StringComparison.OrdinalIgnoreCase)).ToList();
                if (satisfiedSongs.Count > 1)
                {
                    return($"具体是以下哪一首歌呢(暂时不支持选择id):\n{satisfiedSongs.ToSetString()}");
                }
                if (satisfiedSongs.Count == 0)
                {
                    return($"找不到哪个歌叫{songName}哦...");
                }
                song = satisfiedSongs[0];
            }

            var sourceUser      = CurrentPlatformUser.FindThis(KouContext);
            var dbSong          = song.FindThis(KouContext);
            var havenHadAliases = dbSong.Aliases?.Select(p => p.Alias).ToStringJoin("、");
            var success         = SongAlias.Add(alias =>
            {
                alias.CorrespondingSong = dbSong;
                alias.Alias             = songAnotherName;
                alias.SourceUser        = sourceUser;
            }, out var added, out var error, KouContext);

            if (success)
            {
                var reward = RandomTool.GenerateRandomInt(1, 2);
                CurrentPlatformUser.KouUser.GainCoinFree(reward);
                return($"学会了,{song.SongTitle}可以叫做{songAnotherName}({added.AliasID})" +
                       $"{havenHadAliases?.Be($",我知道它还可以叫做{havenHadAliases}!")}(目前暂不会立即同步)\n" +
                       $"[{CurrentUser.FormatGainFreeCoin(CurrentGlobalKouConfig,reward)}!]");
            }
            return($"没学会,就突然:{error}");
        }