怎样使用Vue 动态设置路由参数

<template>
  <p> 
    <button @click="goht">后退<button> <br/>
    <button @click="goqj">前进<button> <br/>
    <button @click="gosx">刷新当前<button>
  </p>
 </template>
 <script>
  export default {
    methods: {
     goht(){
       this.$router.go(-1);
     },
     goqj(){
        this.$router.go(1);
     },
     gosx(){
       this.$router.go(0); //或者 this.$router.go(); 
     }
    }
  }
 </script>

<template>
  <p>
     <button @click="pageA">去A页面</button> <br/>
     <button @click="pageB">去B页面</button> <br/>
  </p>
</template>
<script> 
 exprot default {
  methods: {
     pageA(){
        //去路由A页面，字符串形式只能是path，类似to="path"
       this.$router.push('/RouterA'); 
     },
     pageB(){
        //去路由B页面，数组形式，类似 :to="{}"
       this.$router.push(
         {
          name: 'RouterB',
          query: {'name': 'name1', title: 'title1'}
          //,params:{'name': 'name2', title: 'title2'}
         }
       );
     }
   }
 }
</script>