static string connStr = "Data Source=d:\\test.db";
        static void Main(string[] args) {
            sqliteConnection conn = new sqliteConnection(connStr);
            sqliteCommand cmd = conn.CreateCommand();
            string sql = "select * from admin";
            conn.Open();
            cmd.CommandText = sql;
            IDataReader dr = cmd.ExecuteReader();
            //输出列名,FieldCount 是列长度
            for (int i = 0; i < dr.FieldCount; ++i)
                Console.Write(dr.GetName(i) + "\t");
            Console.WriteLine();
            //输出一行,先read
            while (dr.Read()) {
                Console.Out.WriteLine(dr.GetString(0) + "\t" + dr.GetString(1));
            }
            Console.Read();