<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.active{
color: red;
}
</style>
</head>
<body>
<div id="app">
<h1 v-for="(item,index) in movies"
:class="{active:index==isActive}"
@click="mouseClick(index)">{{item}}</h1>
</div>
<script src="../js/vue.js"></script>
<script>
const vue = new Vue({
el: '#app',
data: {
message: '你好啊',
movies:['七月','八月','九月','十月'],
isActive: false
},
methods:{
mouseClick:function (index) {
this.isActive = index
}
}
})
</script>
</body>
</html>
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