不去medoo官网查文档，搁这问？

如你所愿的示例：
https://www.coder.work/article/2487305

百度 bing google 得出来 我还用来这问么。。。 官方例子能直接用的话 我用来这问么

$database->select("A", [
    "[><]B" => ["A.ff" => "ff"]
], [
    "A.aa",
    "A.ac",
    'B.ba'
]);

        $db = new \Medoo\Medoo([
            'type' => 'mysql',
            'host' => getenv('db_host'),
            'database' => getenv('db_name'),
            'username' => getenv("db_username"),
            'password' => getenv("db_password"),
            'charset' => getenv("db_charset"),
            'collation' => 'utf8mb4_general_ci',
            'port' => 3306,
            'prefix' => '',
            'logging' => false,
            'error' => \PDO::ERRMODE_EXCEPTION,
            'option' => [
                \PDO::ATTR_CASE => \PDO::CASE_NATURAL
            ],
            'command' => [
                'SET SQL_MODE=ANSI_QUOTES'
            ]
        ]);
        $user = $db->select('user', ['[>]enterprise' => ['user.enterprise_id' => 'id']], ['user.id', 'user.username', 'enterprise.id', 'enterprise.enterprise_name'], ['user.id' => 1]);
        return json($user);

$db->select('A',[
  '[>]B(b)'=>['ff']
],[
  'aa',
  'ac',
  'A.ff(a_ff)',
  'ba',
  'bc',
  'b.ff(b_ff)'
]);