消失的父级路由名。
一般来说，嵌套路由的子级路由是不需要加这个/的，但是如果你加了的话就回出现嵌套扁平化的感觉，看起来是在当前的路由的父级路由下进行操作。
{
path: '/home',
component: (resolve) => require(['@/layouts/Home.vue'], resolve),
children: [
{
path: '/childern1',
name: 'childern',
component: (resolve) => require(['@/views/childern1/index.vue'], resolve)
},
{
path: '/childern2',
name: 'childern2',
component: (resolve) => require(['@/views/childern2/index.vue'], resolve)
}
]
},