将标准地址中的省市区根据正则表达式解析出来

//解析地址
public string Analysis(string address)
        {
            string regex = "(?[^省]+自治区|.*?省|.*?行政区|.*?市)?(?[^市]+自治州|.*?地区|.*?行政单位|.+盟|市辖区|.*?市|.*?县)?(?[^县]+县|.+区|.+市|.+旗|.+海域|.+岛)?(?[^区]+区|.+镇|.+办事处)?(?.*)";

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

            var province = m.Groups["province"].Value;//省
            var city = m.Groups["city"].Value;//市
            var county = m.Groups["county"].Value;//县
            var town = m.Groups["town"].Value;//镇
            var village = m.Groups["village"].Value;//详细地址

            return province + "," + city + "," + county + "," + town + "," + village;
        }