程序代码：

public MySqlDataReader ExecuteQuery1(string sql)
    {
          conn.Open();                                     
        MySqlCommand cmd = new MySqlCommand(sql, conn);
        MySqlDataReader rd = cmd.ExecuteReader();
        return rd;
       

    }


MySql.Data.MySqlClient.MySqlException”类型的异常在 MySql.Data.dll 中发生，但未在用户代码中进行处理
其他信息: Authentication to host 'XU- PC' for user '' using method 'mysql_native_password' failed with message: Access denied for user ''@'xu-PC' (using password: NO)