scroll-view中绑定的bindrefresherrefresh事件为什么没效果呢？
基础库2.11.2，开发者工具v1.02.2004102
<scroll-view class="case-scroll" style="padding-top:{{height}}px;height:{{scrollHeight}}"
refresher-enabled="true" refresher-threshold="10" refresher-default-style="black"
refresher-background="#555" refresher-triggered="true" bindrefresherrefresh="upper"
scroll-y="true" ></scroll-view>
js文件
upper(e){
console.log('upper')
},
