Operating class name - object syntax
<!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;
}
.unactive {
color: green;
}
.default {
border: 2px solid #0f00ff;
}
</style>
</head>
<body>
<div id="app">
<h1 class="default" :class="{ 'active': isTrue, 'unactive': !isTrue }">{{message}}</h1>
<button @click="isTrue = !isTrue">Toggle</button>
</div>
<script src="./vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
isTrue: true,
message: '使用对象的语法操作类名'
}
});
</script>
</body>
</html>
Operating class name - array syntax
<!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;
}
.unactive {
color: green;
}
.default {
border: 2px solid #0f00ff;
}
</style>
</head>
<body>
<div id="app">
<h1 :class="['default', isTrue ? 'active' : 'unactive']">{{message}}</h1>
<button @click="isTrue = !isTrue">Toggle</button>
</div>
<script src="./vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
isTrue: true,
message: '使用对象的语法操作类名'
}
});
</script>
</body>
</html>
