vue路由篇

二级路由
{path:"/mine", component: ()=>import("../views/Mine"), children: [
            {path:"", component: ()=>import("../views/Default")},
            {path:"info", component: ()=>import("../views/Info")},
            {path:"order", component: ()=>import("../views/Order")}
        ]}

 二、

this.$router.go(val) => 在history记录中前进或者后退val步，当val为0时刷新当前页面。
this.$router.push(path) => 在history栈中添加一条新的记录。