请教一个 golang 问题

第一种写法

func (bus *es) PublicAll(topics []*EventTopic) {
	for _, topic := range topics {
		bus.mutex.Lock()
		h, ok := bus.handlers[topic.Topic]
		bus.mutex.Unlock()
		if !ok {
			continue
		}

		bus.client.Subscribe(topic.Topic, byte(topic.QoSValue), func(c mqtt.Client, m mqtt.Message) {
			go func(h EventHandler) {
				defer func() {
					if err := recover(); err != nil {
						fmt.Printf("goroutine panic: %+v \r\n", err)
					}

				}()
				h(topic.Topic, m)
			}(h)
		})
	}
}

第二种写法

func (bus *es) PublicAll(topics []*EventTopic) {
	for _, topic := range topics {
		bus.mutex.Lock()
		h, ok := bus.handlers[topic.Topic]
		bus.mutex.Unlock()
		if !ok {
			continue
		}

		go func(h EventHandler) {
			defer func() {
				if err := recover(); err != nil {
					fmt.Printf("goroutine panic: %+v \r\n", err)
				}

			}()
			bus.client.Subscribe(topic.Topic, byte(topic.QoSValue), func(c mqtt.Client, m mqtt.Message) {
				h(topic.Topic, m)
			})
		}(h)
	}
}

请问下上面两种写法，哪一种更好，为什么？除了以上方法还有其他更好的实现？感谢