一个小作业，v-bind和v-for结合实现点击li元素变色。
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.active{
color: aqua;
}
</style>
</head>
<body>
<div id="app">
<ul>
<li v-for="(m,index) in movies"
@click="btnClick(index)"
:class="{active:currentIndex==index}">
{
{
index}}-{
{
m}}
</li>
</ul>
</div>
<script src="../js/vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
currentIndex:0,
movies: ['hello','zcc','world']
},
methods:{
btnClick:function (index) {
this.currentIndex=index;
}
}
})
</script>
</body>
</html>