export default new Router({
 routes: [
   {
   path: '/',
   name: 'A',
   component: require('../components/A')
  },
  {
   path: '/B/:name/:age',
   name: 'B',
   component: require('../components/B')
  }
 ]
})

<template>
 <div> <!---只允许有一个最外层标签 ！-->
  <div>
   <p>{{message}}</p>
   <p @click="toBFun">跳转B组件啊啊</p>
   <!--<router-link :to="{ path: '/B',params:{name:'zs',age:22}}">跳转B组件啊啊</router-link>-->
  </div>
 </div>
</template>
<script>
 export default {
  data: function () {
   return {
    message: 'vue好帅啊！'
   }
  },
  methods: {
   toBFun: function(){
    this.$router.push({name:'B',params:{name:'xy',age:22}});
   }
  }
 }
</script>
<style>

</style>

 {
   path: '/B/:name/:age',
   name: 'B',
   component: require('../components/B')
  }

this.$router.push({name:'B',params:{name:'xy',age:22}});

 this.$router.push({name:'B',query:{name:'xy',age:22}});

 <router-link :to="{ path: '/B',query:{name:'张飞',age:22}}">跳转B组件</router-link>

 <router-link :to="{path:'/B/123'}">
    跳转B组件</router-link>
  </div>

{
   path: '/B/:name',
   name: 'B',
   component: require('../components/B')
  }

this.$route.params.name