<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<span v-if="ok===true">YES</span>
<span v-else>NO</span><br>
<span v-if="type===‘A‘">A</span>
<span v-else-if="type===‘B‘">B</span>
<span v-else=>C</span>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
var vm = new Vue({
el: "#app",
data: {
ok: true,
type: ‘A‘
}
});
</script>
</body>
</html>
原文：https://www.cnblogs.com/ixtao/p/14099941.html