# 雙向綁定
利用 ==v-model== 做資料的雙向綁定,v-model具有雙向綁定資料的效果
```javascript=
<div id="app">
<h1>{{text}}</h1>
<!-- 利用 v-model const的資料綁定-->
<input type="text" v-model="text"/>
<br />
<br />
<br />
<!-- 利用 v-model const的資料綁定-->
<h1>{{message.name}}</h1>
<input type="text" v-model="message.name"/>
</div>
<script src="./js/vue.js"></script>
<script>
const { ref, reactive } = Vue;
const App = {
setup() {
const text = ref('Hello Vue')
const message = reactive({name:"Bryan"})
return {
text,message,
};
},
};
Vue.createApp(App).mount("#app");
```
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