<scroll-view  class="scroll-Y" 
      		scroll-y="true"
      		refresher-enabled="true"
      		refresher-default-style="white"
			refresher-background="#121214"
			@refresherrefresh="getChatList('refresh')" 
			:refresher-triggered="refresherTriggered">
			<view class="chat-list-item" 
				v-for="(item,index) in chatList" :key="item.id"
				@click="goChat(item)">
				. . .
				</view>
			</view>
		</scroll-view>

let refresherTriggered = ref(false)
async function getChatList(type){
		 (type == 'refresh') && (refresherTriggered.value = true)
		let res = await ... // 异步操作
		if(type == 'refresh'){
		    // 加倒计时是让下拉刷新的效果稍微长一些，有个肉眼看到的过渡效果
			let timer = setTimeout(()=>{
				refresherTriggered.value = false;
				clearTimeout(timer)
			},500)
		}
	}