如何在flutter中控制来自mysql数据库的数据？

dependencies:
  mysql1: ^0.19.0

import 'package:mysql1/mysql1.dart';

void main() async {
  final conn = await MySqlConnection.connect(ConnectionSettings(
    host: 'your_mysql_host',
    port: 3306,
    user: 'your_mysql_username',
    password: 'your_mysql_password',
    db: 'your_mysql_database',
  ));

  // 连接成功后，可以执行SQL查询和操作数据库数据
}

final results = await conn.query('SELECT * FROM your_table');
for (var row in results) {
  print(row.fields);
}

await conn.query('INSERT INTO your_table (column1, column2) VALUES (?, ?)', ['value1', 'value2']);
await conn.query('UPDATE your_table SET column1 = ? WHERE id = ?', ['new_value', 1]);
await conn.query('DELETE FROM your_table WHERE id = ?', [1]);