本文實例講述了ASP.NET實現根據IP獲取省市地址的方法，。具體實現方法如下：

1、在網站的跟路徑下面添加QQWry.dat（點擊此處本站下載//www.survivalescaperooms.com/softs/10529.html）文件，這個文件是IP數據庫文件

2、添加以下一個類 IPScanner

代碼如下:public class IPScanner
{
        //私有成員#region 私有成員
        private string dataPath;
        private string ip;
        private string country;
        private string local;

        private long firstStartIp = 0;
        private long lastStartIp = 0;
        private FileStream objfs = null;
        private long startIp = 0;
        private long endIp = 0;
        private int countryFlag = 0;
        private long endIpOff = 0;
        private string errMsg = null;

        //構造函數#region 構造函數
        public IPScanner()
        {
            this.dataPath = System.Web.HttpContext.Current.Server.MapPath("/ipdata/QQWry.dat");
        }

        //公共屬性#region 公共屬性
        public string DataPath
        {
            set { dataPath = value; }
        }
        public string IP
        {
            set { ip = value; }
        }
        public string Country
        {
            get { return country; }
        }
        public string Local
        {
            get { return local; }
        }
        public string ErrMsg
        {