在list.nuve这里

		<uni-search-bar @click="searchClick" class="uni-search-box" v-model="keyword" ref="searchBar" radius="100"
			cancelButton="none" disabled />
		<unicloud-db ref='udb' v-slot:default="{data,pagination,hasMore, loading, error, options}" @error="onqueryerror"

这里声明了@error用onqueryerror函数处理，然而却没有此函数的的实现，这导致以下问题出现：

[Vue warn]: Property or method "onqueryerror" is not defined on the instance but referenced during render.