传值

1：query传值：（path,name都行）

this.$router.push({
        query: { name:'username' },
        name: 'details'
});

this.$router.push({
        query: { name:'username' },
        path: 'details'
});

2：params传值：（只能用name，path不行）

this.$router.push({
        params: { name:'username' },
        name: 'details'
});

3：官网上说的通过new vue()实例来传参的不适用于，路由之间的不同组件之间传参；

获取

 created: function() {
    //   console.log(this.$router)
    //    console.log(this.$router.app)
    //    console.log(this.$router.app._route)
       console.log(this.$route.params.name)
       console.log(this.$route.query.name)
  },

route跟router的区别

this. router.app.route=========this. $router.app._route=========this.$route