vue利用axios来完成数据的交互

<script src="https://unpkg.com/axios/dist/axios.min.js"></script>

import axios from ‘axios' 
Vue.prototype.$http = axios

<template>
 <div class="tabbar">
  <p>首页</p>
  <button v-on:click = 'goback'>获取数据</button>
  <div class="new_wrap" v-for="items in item">
   <div class="newcard">
    <div>
      <p>{{items.issuer_nickname}}.</p>
    </div>
    <div>
      {{items.title}}
    </div>
    <div class="pic">
      <img :src="items.cover">
    </div> 
   </div>
   <br>
   </div>
 </div>
</template>
<script>
export default {
 name: 'tabbar',
 data () {
  return {
   msg: 'Welcome to Your Vue.js App',
   item: []
  }
 },
 methods:{
  goback:function(){
   console.log('hah');
   this.$http.get('url') //把url地址换成你的接口地址即可
    .then(res => {
     //this.request.response = res.data
     this.item = res.data.data.item; //把取item的数据赋给 item: []中
     console.log(res.data.data.item);
     if (res.data.code == '0') {
      console.log('haha');
     }else{
      alert('数据不存在');
     }
    })
    .catch(err => {
     alert('请求失败');
    })
  }
 }
}
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped lang="scss">
*{margin: 0;padding: 0;}
@function torem($px){//$px为需要转换的字号
  @return $px / 100px * 1rem; //100px为根字体大小
}
ul{
 width: 100%;
 position: absolute;
 bottom: 0;
 li{
  width: torem(187.5px);
  float:left;
  height: torem(98px);
  text-align:center;
  background: #ccc;
  }
}
img{
   width: torem(200px);
   height: torem(200px);
  }
</style>