分离出文件名 路径 后缀

        /// <summary>
        /// 分离出文件名 路径 后缀
        /// </summary>
        /// <param name="fullName">包括文件名和路径</param>
        /// <returns>返回数组 0 path 1 filename 2 suffix </returns>
        public string[] splitFileNamePathSuffix(string fullName)
        {


            string[] fileSplit = new string[3];
            if (String.IsNullOrEmpty(fullName))
                return null;

            if (fullName.Contains("\\"))//windows mode 
            {
                fileSplit[0] = fullName.Substring(0, fullName.LastIndexOf("\\")); //get path
                fileSplit[1] = fullName.Substring(fullName.LastIndexOf("\\") + 1, (fullName.LastIndexOf(".") - fullName.LastIndexOf("\\") - 1)); //get file name 
                fileSplit[2] = fullName.Substring(fullName.LastIndexOf(".") + 1, (fullName.Length - fullName.LastIndexOf(".") - 1)); //get suffix
            }
            if (fullName.Contains("/"))//unix mode
            {
                fileSplit[0] = fullName.Substring(0, fullName.LastIndexOf("/")); //get path
                fileSplit[1] = fullName.Substring(fullName.LastIndexOf("/") + 1, (fullName.LastIndexOf(".") - fullName.LastIndexOf("/") - 1)); //get file name 
                fileSplit[2] = fullName.Substring(fullName.LastIndexOf(".") + 1, (fullName.Length - fullName.LastIndexOf(".") - 1)); //get suffix

            }
            return fileSplit;

        }