Vue-百度下拉列表

发布时间：2020-12-16 18:52:31 所属栏目：百科来源：网络整理

导读：!DOCTYPE htmlhtml lang="en"head meta charset="UTF-8" titlevue百度下拉列表/title meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0" meta name="apple-mobile-web-app-capable" content="yes" me

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>vue百度下拉列表</title>
    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .gray{
            background: #ccc;
        }
    </style>
    <script src="vue.js"></script>
    <script src="vue-resource.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:'body',data:{
                    myData:[],t1:'',now:-1
                },methods:{
                    get:function(ev){
                        if(ev.keyCode==38 || ev.keyCode==40)return;

                        if(ev.keyCode==13){
                            window.open('https://www.baidu.com/s?wd='+this.t1);
                            this.t1='';
                        }

                        this.$http.jsonp('https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su',{
                            wd:this.t1
                        },{
                            jsonp:'cb'
                        }).then(function(res){
                            this.myData=res.data.s;
                        },function(){
                            
                        });
                    },changeDown:function(){
                        this.now++;
                        if(this.now==this.myData.length)this.now=-1;
                        this.t1=this.myData[this.now];
                    },changeUp:function(){
                        this.now--;
                        if(this.now==-2)this.now=this.myData.length-1;
                        this.t1=this.myData[this.now];
                    }
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <input type="text" v-model="t1" @keyup="get($event)" @keydown.down="changeDown()" @keydown.up.prevent="changeUp()">
        <ul>
            <li v-for="value in myData" :class="{gray:$index==now}">
                {{value}}
            </li>
        </ul>
        <p v-show="myData.length==0">暂无数据...</p>
    </div>
</body>
</html>

（编辑：李大同）

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