static void Update(){string connectStr = "server=127.0.0.1;port=3306;database=mygamedb;user=root;password=root";MySqlConnection conn = new MySqlConnection(connectStr); try{conn.Open(); string sql = "update users set username='qqqqqq',password='111111' where id='3'";Console.WriteLine(sql);MySqlCommand cmd = new MySqlCommand(sql, conn);int result = cmd.ExecuteNonQuery();Console.WriteLine(result);Console.WriteLine("已经建立连接");}catch (Exception e){Console.WriteLine(e.ToString());}finally{conn.Close();}Console.ReadKey();}
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