fastadmin中写接口是时Validate规则验证自定义如何用

$rule = [
                'username'  => 'require|length:3,30',
                'password'  => 'require|length:6,30',
                'email'     => 'require|email',
                'mobile'    => 'regex:/^1\d{10}$/',
                'captcha'   => 'require|checksms',
                '__token__' => 'token',
            ];
$msg = [
                'username.require' => 'Username can not be empty',
                'username.length'  => 'Username must be 3 to 30 characters',
                'password.require' => 'Password can not be empty',
                'password.length'  => 'Password must be 6 to 30 characters',
                'code.require'  => 'Captcha can not be empty',
                'captcha.captcha'  => 'Captcha is incorrect',
                'email'            => 'Email is incorrect',
                'mobile'           => 'Mobile is incorrect',
            ];
$data = [
                'username'  => $username,
                'password'  => $password,
                'email'     => $email,
                'mobile'    => $mobile,
                'captcha'   => $captcha,
                '__token__' => $token,
            ];
            $validate = new Validate($rule, $msg);
            $result = $validate->check($data);