做条件判断用的v-if、v-else
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
{{message}}
<h2 v-if="score>90">优秀</h2>
<h2 v-else-if="score>80">良好</h2>
<h2 v-else>一般</h2>
<h1>{{result}}</h1>
</div>
<script src="../vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
message: 'hello',
score: 90
},
computed: {
result(){
let message = '';
if (this.score>90) {
message = '优秀'
}else if(this.score>=80) {
message = '良好'
}else {
message = '一般'
}
return message
}
}
})
</script>
</body>
</html>