vue传参二

<template>
   <ul>
       <li v-for="(value,key,index) in list" :key="index">
           {{value}} 
       </li>
       <button @click="back">back</button>
   </ul>
</template>
<script>
    export default{
        data(){
            return {
                list:{}
            }
        },
        created(){
            this.getData();
        },
        methods:{
            getData(){
                this.$http.get('http://localhost:3000/'+this.$route.params.type+'/'+this.$route.params.id).then((res)=>{
                    this.list = res.data;
                })
            },
            back(){
                // this.$router.go(-1);
                this.$router.back(); //返回之前的页面
            }
        }
    }
</script>