<el-menu-item:index="index+'-'+idx"v-for="(it, idx) in item.children":key="idx"@click="handleItem(it)":disabled="it.disabled">{{it.title}}</el-menu-item>
<el-menu-item:index="index+'-'+idx"v-for="(it, idx) in item.children":key="idx"@click="handleItem(it)"