整理文档，搜刮出一个使用 Vue.js 仿百度搜索框的实例代码，稍微整理精简一下做下分享。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue demo</title>
<style type="text/css">
.bg {
background: #ccc;
}
</style>
<script src="https://cdn.bootcss.com/vue/2.1.7/vue.min.js"></script>
<script src="https://cdn.bootcss.com/vue-resource/1.3.1/vue-resource.min.js"></script>
<script type="text/javascript">
window.onload = function() {
new Vue({
el: '#box',
data: {
inputText: '',
text: '',
nowIndex: -1,
result: []
},
methods: {
show: function(ev) {
if (ev.keyCode == 38 || ev.keyCode == 40) {
if (this.nowIndex < -1){
return;
}
if (this.nowIndex != this.result.length && this.nowIndex != -1) {
this.inputText = this.result[this.nowIndex];
}
return;
}
if (ev.keyCode == 13) {
window.open('https://www.baidu.com/s?wd=' + this.inputText, '_blank');
this.inputText = '';
}
this.text = this.inputText;
this.$http.jsonp('https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su', {
params: {
wd: this.inputText
},
jsonp: 'cb'
}).then(res => {
this.result = res.data.s;
})
},
down: function() {
this.nowIndex++;
if (this.nowIndex == this.result.length) {
this.nowIndex = -1;
this.inputText = this.text;
}
},
up: function() {
this.nowIndex--;
if (this.nowIndex < -1){
this.nowIndex = -1;
return;
}
if (this.nowIndex == -1) {
this.nowIndex = this.result.length;
this.inputText = this.text;
}
}
}
});
}
</script>
</head>
<body>
<div id="box">
<input type="text" placeholder="请输入搜索内容" v-model='inputText' @keyup='show($event)' @keydown.down='down()' @keydown.up.prevent='up()'>
<ul>
<li v-for="(item, index) in result" :class='{bg: index==nowIndex}'>
{{item}}
</li>
</ul>
</div>
</body>
</html>
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