从地址中 解析省市区

/// <summary>
        /// 解析省市区
        /// </summary>
        /// <param name="address"></param>
        /// <returns></returns>
        public (string province,string city,string county,string town,string village) Analysis(string address)
        {
            string regex = "(?<province>[^省]+自治区|.*?省|.*?行政区|.*?市)?(?<city>[^市]+自治州|.*?地区|.*?行政单位|.+盟|市辖区|.*?市|.*?县)?(?<county>[^县]+县|.+区|.+市|.+旗|.+海域|.+岛)?(?<town>[^区]+区|.+镇)?(?<village>.*)";

            var m = Regex.Match(address, regex, RegexOptions.IgnoreCase);

            var province = m.Groups["province"].Value;
            var city = m.Groups["city"].Value;
            var county = m.Groups["county"].Value;
            var town = m.Groups["town"].Value;
            var village = m.Groups["village"].Value;

            return (province, city, county, town, village);
        }