为html标记绑定样式单class属性
<!DOCTYPE html>
<html>
<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></title>
<link type="text/css" rel="styleSheet" href="../css/style.css" />
<script src="../js/vue.js"></script>
</head>
<body>
<div id="example">
<p v-bind:class="{active:isActive}">我是蓝色文本</p>
<p :class="{active:isActive}">我也是蓝色文本</p>
<button @click="btnclick()">{{btn}}</button>
</div>
</body>
<script>
new Vue({
el: "#example",
data: {
isActive: true,
btn : "毙掉蓝色"
},
methods: {
btnclick: function() {
if(this.isActive == true) {
this.isActive = false;
this.btn = "毙掉黑色";
}else {
this.isActive = true;
this.btn = "毙掉蓝色";
}
}
}
});
</script>
</html>