- ref：存储单个数据，如数值，字符串
- reactive：存储复杂数据，如对象，数组
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><script src="vue.global.js"></script>
</head><body><div id="app"><!-- 插值表达式 -->{{msg}}<h2>{{web.title}}</h2><h2>{{web.url}}</h2><h2>{{number}}</h2><h2>{{arr}}</h2></div><script>const { createApp, reactive, ref } = VuecreateApp({setup() {const number = ref(10)const arr = ref([1,2,3,4])//ref也能存数组number.value=20 //修改number的值const web = reactive({title: "tao355667",url: "tao355667.com"})return {msg: "success",web,number,arr}}}).mount("#app")</script>
</body></html>
参考
https://www.bilibili.com/video/BV1nV411Q7RX
