C# 数据库写入简单示例

 private int UpdateDB(string fname, string md5, int type)
        {
            string sql = @"insert into tb_hash(fname, uuid, state) values(@fname, @uuid, @state)";
            SqlParameter[] parameters = {
                                            new SqlParameter("@fname", fname),
                                            new SqlParameter("@uuid", md5),
                                            new SqlParameter("@state", type)
                                        };

            string conStr = @"server=.\sqlexpress;database=batchseal;uid=sa;pwd=111111";
            SqlConnection conn = new SqlConnection(conStr);
            conn.Open();
            SqlCommand cmd = new SqlCommand(sql, conn);
            cmd.Parameters.AddRange(parameters);
            int ret = cmd.ExecuteNonQuery();

            return ret;
        }