<u-collapseref="myCollapse"@change="change"accordion> <u-collapse-itemv-for="(level,index)inlevelList":key="index":title="level.name"ref="collapseHeight"> <viewclass=""> <viewv-for="(film,i)infilmList":key="i"class="u-p-20"> {{film.name}} </view> </view> </u-co...