vue定义全局组件后，在页面中使用单标签加载不出来后面的标签，本来以为是组件加载不出来，但是正常的标签也加载不出来
```html
<!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>Document</title>
</head>
<body>
<div id="app">
<test1 />
<div>11</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
Vue.component('test1',{
data(){
return {
}
},
template:`
组件1
`
})
Vue.component('test2',{
data(){
return {
}
},
template:`
组件2
`
})
new Vue({
el:"#app",
data:{
},
methods: {
},
})
</script>
</body>
</html>
```
