<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title></title>
<link rel="stylesheet" href="node_modules/bootstrap/dist/css/bootstrap.min.css">
<script src="src/assets/vue2.min.js"></script>
</head>
<body>
<ul>
<li v-for="option in options">
<p class="text-success" @click="getIndex($index)">{{option.text}}{{option.value}}</p>
</li>
</ul>
<div v-if="isNaN(click)==false">
<span>你点击的索引为: {{ click }}</span>
</div>
<div v-else>
<p class="text-danger">试着点击上方LI条目</p>
</div>
<script type="text/javascript">
new Vue({
el: 'body',
data: {
click: 'a',
options: [
{ text: '上海市', value: '20' },
{ text: '湖北省', value: '43' },
{ text: '河南省', value: '45' },
{ text: '北京市', value: '10' }
]
},
methods:{
getIndex:function(index){
this.click=index; //这里的click取值是data里的值，每触发一次点击事件，click就被重新赋值一次
}
}
});
</script>
</body>
</html>