DOCTYPE html>>
<html>
<head>
<title>天气案例title>
<meta charset="UTF-8" />
<script type="text/javascript" src="../js/vue.js">script>
head>
<body>
<div id="root">
<h2>今天天气很{{info}}h2>
<button @click="changeWeather">切换天气button>
div>
body>
<script type="text/javascript">
Vue.config.productionTip = false
new Vue({
el:'#root',
data:{
isHot:true
},
computed:{
info(){
return this.isHot ? '炎热' : '凉爽'
}
},
methods: {
changeWeather(){
this.isHot = !this.isHot
}
},
})
script>
html>
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