废话少说,看代码
<!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>
<script src="js/vue.js"></script>
</head>
<body>
<div id="app">
<h1 v-if="grt=(ho<9?'早上好':
ho<12?'上午好':
ho<15?'中午好':
ho<19?'下午好':
'晚上好'
)">{{grt}}</h1>
</div>
<script>
var vm=new Vue({
el:"#app",
data:{
grt:"hello",
ho:new Date().getHours()
}
})
</script>
</body>
</html>
