dom：

<div class="module-content"><div class="title"><span>[</span><p>鱼骨图</p><span>]</span></div><div class="line-mian"></div><div :ref="'module' + i" v-for="(item,i) in list" :key="i" class="module-pub"><div :ref="'line' + i" class="line-pub"></div><div :ref="'lineOne' + i + j" v-for="(k,j) in item.children" class=&#