<el-menu-item@click="goUrl(child)"v-for="(child,childIndex) in item.ChildMenu":key="childIndex":index="String(index+1)+'-'+String(childIndex+1)"><span>{{child.MenuName}}</span></el-menu-item>
<el-menu-item@click="goUrl(child)"v-for="(child,childIndex) in item.ChildMenu":key="childIndex":index="child.MenuUrl"><span>{{child.MenuName}}</span></el-menu-item>