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=&#