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13 changes: 11 additions & 2 deletions resource/doc/zh-cn/di.md
Original file line number Diff line number Diff line change
Expand Up @@ -161,8 +161,17 @@ class Mailer
```php
return [
// ... 这里忽略了其它配置

app\service\Mailer::class => new app\service\Mailer('192.168.1.11', 25);
app\service\Mailer::class => function () {
return new app\service\Mailer('192.168.1.11', 25);
}
];

or

return [
app\service\Mailer::class => DI\autowire()
->constructorParameter('smtp_host', '192.168.1.11')
->constructorParameter('smtp_port', 25),
];
```
这样当依赖注入需要获取`app\service\Mailer`实例时将自动使用这个配置中创建的`app\service\Mailer`实例。
Expand Down