HMVue3.5.1【vue组件】
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DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
head>
<body>
<div id="app">{{username}}div>
<script src="./lib/vue-2.6.12.js">script>
<script>
const vm = new Vue({
// el: '#app',
data: {
username: 'admin'
}
})
vm.$mount('#app') //与el: '#app'作用一致，效果相同
script>
body>
html>
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//lang默认值是css这是用户自定义的Test.vue--->{{username}}