Function OnKey

internal/events/utils.go:39–53

OnKey 使用Key增加事件回调

(event Event, key interface{}, callback func())

// OnKey 使用Key增加事件回调
func OnKey(event Event, key interface{}, callback func()) {
	if key == nil {
		key = NewKey()
	}

	locker.Lock()
	defer locker.Unlock()

	m, ok := eventsMap[event]
	if !ok {
		m = map[interface{}]Callbacks{}
		eventsMap[event] = m
	}
	m[key] = append(m[key], callback)
}

// Remove 删除事件回调
func Remove(key interface{}) {