[增添]添加了datasource的setting数据库以及默认值

vendor/symfony/translation/README.md

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+Translation Component
+=====================
+
+The Translation component provides tools to internationalize your application.
+
+Getting Started
+---------------
+
+```
+$ composer require symfony/translation
+```
+
+```php
+use Symfony\Component\Translation\Translator;
+use Symfony\Component\Translation\Loader\ArrayLoader;
+
+$translator = new Translator('fr_FR');
+$translator->addLoader('array', new ArrayLoader());
+$translator->addResource('array', [
+    'Hello World!' => 'Bonjour !',
+], 'fr_FR');
+
+echo $translator->trans('Hello World!'); // outputs « Bonjour ! »
+```
+
+Sponsor
+-------
+
+Help Symfony by [sponsoring][1] its development!
+
+Resources
+---------
+
+ * [Documentation](https://symfony.com/doc/current/translation.html)
+ * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+ * [Report issues](https://github.com/symfony/symfony/issues) and
+   [send Pull Requests](https://github.com/symfony/symfony/pulls)
+   in the [main Symfony repository](https://github.com/symfony/symfony)
+
+[1]: https://symfony.com/sponsor