Vue实现百度下拉提示搜索功能

 new Vue({
    el:'#app',
    data:{
      myData:[],
      keyword:'',
      now:-1
    },
    methods:{
      get:function (event) {
        if(event.keyCode==38||event.keyCode==40)return;
        if(event.keyCode==13){
          window.open('https://www.baidu.com/s?wd='+this.keyword);
          this.keyword=''
        }
        this.$http.jsonp('https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su',{
          wd:this.keyword
        },{
          jsonp:'cb'
        }).then(function (res) {
          this.myData=res.data.s;
        },function () {

        });
      },
      selectDown:function () {
        this.now++;
        if(this.now==this.myData.length)this.now=-1;
        this.keyword=this.myData[this.now];
      },
      selectUp:function () {
        this.now--;
        if(this.now==-2)this.now=this.myData.length-1;
        this.keyword=this.myData[this.now];
      }
    }
  })

<div class="container search-container" id="app">
  <h1 class="title" >baidu-search</h1>
  <input type="text" class="form-control" placeholder="请输入想要搜索关键字" v-model="keyword" @keyup="get($event)" @keydown.down.prevent="selectDown"
  @keydown.up.prevent="selectUp">
  <ul>
    <li class="text-center" v-for="(value,index) in myData"><span class="text-success textprimary" :class="{gray:index==now}">{{value}}</span></li>
  </ul>
  <p ><h2 v-show="myData.length==0" class="text-warning text-center">(*^__^*)暂时没有数据</h2></p>
</div>