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Him188 2020-12-19 16:06:09 +08:00
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docs/Events.md
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@ -162,13 +162,17 @@ MyApplication.subscribeAlways<GroupMessageEvent> {
Mirai 也支持传递函数引用：
```kotlin
MyApplication.subscribeAlways<GroupMessageEvent> {
// this: GroupMessageEvent
// it: GroupMessageEvent
// lambda 的 this 和参数都是 GroupMessageEvent
suspend fun GroupMessageEvent.onEvent() {
group.sendMessage(sender.at() + "Hello! ${sender.nick}")
}
MyApplication.subscribeAlways<GroupMessageEvent>(GroupMessageEvent::onEvent)
```
既可以使用接收者参数，又可以使用普通参数，还可以同时拥有。如下三个定义都是被接受的：
```kotlin
suspend fun GroupMessageEvent.onEvent()
suspend fun GroupMessageEvent.onEvent(event: GroupMessageEvent)
suspend fun onEvent(event: GroupMessageEvent)
```
### 在 Kotlin 使用 DSL 监听事件