v-bind
v-bind 语法糖
v-bind 使用JavaScript表达式
v-bind 动态绑定class
之前，原生操作
v-bind 绑定class
v-bind 绑定数组语法
vue v-for出来的列表，点击当前，当前被点击的字体变颜色
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.active {
color: red;
}
</style>
<script src="../js/vue.js"></script>
</head>
<body>
<div id="app">
<ul>
<li v-for="(m,item) in movies">
<a @click="btnClick(item)" :key="item" :class="{active:i===item}">{{item}}--{{m}}</a></li>
</ul>
</div>
<script>
//创建Vue实例,得到 ViewModel
var vm = new Vue({
el: '#app',
data: {
movies: ['海王', '星际穿越', '大话西游', '少年派', '盗梦空间'],
i: 0,
},
methods: {
btnClick: function (index) {
this.i = index;
},
}
});
</script>
</body>
</html>
