public static string CheckExtension()
        {
            var selectExtension = SystemConsole.GetInputStr("请输入文件后缀[如\"cs,cpp\"]:");

            return((string.IsNullOrEmpty(selectExtension) || selectExtension == "*.*")
                ? "*.*"
                : string.Join("|",
                              selectExtension.Split(',', '|').Select(p => "." + p.TrimStart('*').TrimStart('.')).ToArray()));
        }
        public static List <string> CheckPath(string selectExtension = "*.*", SearchOption searchOption = SearchOption.AllDirectories)
        {
            if (string.IsNullOrEmpty(selectExtension))
            {
                selectExtension = SystemConsole.GetInputStr("请输入文件后缀 ('.cs'):");
            }

            var selectExtensions = (string.IsNullOrEmpty(selectExtension) || selectExtension == "*.*")
                ? new string[0]
                : selectExtension.Split(',', '|').Select(p => "." + p.TrimStart('*').TrimStart('.')).ToArray();

            string path = SystemConsole.GetInputStr(
                beforeTip: string.Format("请拖入文件夹或文件({0}):", selectExtension),
                afterTip: "您选择的文件夹或文件:");

            List <string> files = new List <string>();

            if (string.IsNullOrEmpty(path))
            {
                return(files);
            }

            InputPath = path.Replace("\\", "/").TrimEnd('/');

            if (Directory.Exists(path))
            {
                files.AddRange(DirectoryHelper.GetFiles(path, selectExtensions, searchOption));
            }
            else if (File.Exists(path))
            {
                if (selectExtensions.Contains(Path.GetExtension(path)))
                {
                    files.Add(path);
                }
                if (selectExtensions.Length == 0)
                {
                    files.Add(path);
                }
            }
            else
            {
                Console.WriteLine("path is not valid!");
            }

            files.Sort();
            return(files.Select(p => p.Replace("\\", "/")).ToList());
        }