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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>增加class</title>
<script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
<style>
.red{color: red}
</style>
</head>
<body>
<div id="app">
<p v-for='(data,key,index) in datas' v-on:click="addClassFun(index)" v-bind:class='{red:index==qwerqwre}'>{{data.data}}</p>
</div>
<script>
new Vue({
el: '#app',
data: {
datas: {
data1: {
data: "AAA",
ifAdd: 0
},
data2: {
data: "测试",
ifAdd: 1
},
data3: {
data: "VVV",
ifAdd: 2
}
},
qwerqwre:"2"
},
methods: {
addClassFun: function(index) {
this.qwerqwre = index;
console.log("看看qwerqwre"+qwerqwre)
}
}
})
</script>
</body>
</html>
