BiliRanking.Core.TSDownload.removeInvChrInPath C# (CSharp) Method

        public static string removeInvChrInPath(string origFileOrPathStr)
        {
            string validFileOrPathStr = origFileOrPathStr;

            //filter out invalid title and artist char
            //char[] invalidChars = { '\\', '/', ':', '*', '?', '<', '>', '|', '\b' };
            char[] invalidChars = Path.GetInvalidPathChars();
            char[] invalidCharsInName = Path.GetInvalidFileNameChars();

            foreach (char chr in invalidChars)
            {
                validFileOrPathStr = validFileOrPathStr.Replace(chr.ToString(), "");
            }

            foreach (char chr in invalidCharsInName)
            {
                validFileOrPathStr = validFileOrPathStr.Replace(chr.ToString(), "");
            }

            return validFileOrPathStr;
        }

        public static IEnumerable <string> GetAVFlvUrl(string AVnum, out IEnumerable <string> renames, List <BiliInterfaceInfo> binfos = null) //TODO: 试试元组
        {
            string[] avnp  = Regex.Split(AVnum, "_|-|#");
            string   avnum = GetAVdenum(avnp[0]);

            int page = 1;

            if (avnp.Length > 1)
            {
                try
                {
                    page = int.Parse(avnp[1]);
                }
                catch
                {
                    Log.Warn(AVnum + " - 无法识别分P编号，将下载P1");
                }
            }

            BiliInterfaceInfo    info    = null;
            IEnumerable <string> flvs    = null;
            List <string>        rrnames = new List <string>();

            try
            {
                info = GetInfo(avnum);
                if (page > 1)
                {
                    if (info.pagesn.Count >= page)
                    {
                        flvs = GetFlvUrls(uint.Parse(info.pagesn[page - 1].cid));
                    }
                    else
                    {
                        Log.Warn(AVnum + $" - 目标视频仅有{info.pagesn.Count}P，将下载P1");
                        flvs = GetFlvUrls(info.cid);
                    }
                }
                else
                {
                    flvs = GetFlvUrls(info.cid);
                }
                string topstring = "";
                try
                {
                    if (binfos != null)
                    {
                        int paiming = (from b in binfos where b.avnum == info.avnum select b.Fpaiming.Value).First();
                        if (paiming != 0 && paiming <= 20)
                        {
                            topstring = "TOP_" + paiming + "-";
                        }
                    }
                } catch { }
                info.title = $"{info.title}_{info.avnum}_P{page}_{info.pagesn[page - 1].part}";
                info.title = TSDownload.removeInvChrInPath(info.title);
                for (int i = 0; i < flvs.Count(); i++)
                {
                    string filename = Path.GetFileName(new Uri(flvs.ElementAt(i)).AbsolutePath);
                    rrnames.Add($"{filename}$///${topstring}{info.title}_{i + 1}.flv");
                }
            }
            catch (Exception e)
            {
                Log.Error("AV" + avnum + "的数据发生错误，请稍后重试！" + e.Message);
            }
            renames = rrnames;
            return(flvs);
        }