MYSQL 更新 数据+1

                    MySqlConnection con2 = new MySqlConnection("Data Source=localhost;User ID=root;Password=*****;DataBase=数据库;charset=utf8;");

                    string mysql = "update ot_users set UE_score2=UE_score2 +1  where UE_username ='" + TextBox1.Text + "'";
                    con2.Open(); 

                    MySqlCommand cmd18 = new MySqlCommand(mysql, con2);

                    cmd18.ExecuteNonQuery();//执行