<!DOCTYPE html>
<html lang="zh">
<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"><script type="text/javascript" src='vue.min.js'></script>
<title></title><script type="text/javascript"></script>
<style type="text/css">
body{
background: #ccc;}
div{
width: 100px;height: 100px;}
.red{
background: red;}
</style>
</head>
<body>
<input type="button" value='changed'>
<div class="{
{myDiv}}"></div>
<script type="text/javascript">
new Vue({
el:'body',
data:{
myDiv:'red'
},
methods:{
}
});
</script>
</body>
</html>
解释：
主要在于理解这两段代码。
第两段代码的意思是
<div class='red'></div>
效果：
<!DOCTYPE html>
<html lang="zh">
<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">
<script type="text/javascript" src='vue.min.js'></script>
<title></title>
<style type="text/css">
body{
background: #ccc;}
div{
width: 100px;height: 100px;}
.red{
background: red;}
</style>
</head>
<body>
<input type="button" value='changed'>
<div v-bind:class='myDiv'></div>
<script type="text/javascript">
new Vue({
el:'body',
data:{
myDiv:'red',
},
methods:{
}
})
</script>
</body>
</html>
效果：
解释：
