Proxy可以攔截對(duì)象中任意的屬性變化，當(dāng)然包括讀寫(xiě)，添加，刪除等

Reflect對(duì)源對(duì)象屬性進(jìn)行操作

const p=new Proxy(data, {
    // 讀取屬性時(shí)調(diào)用
    get (target, propName) {
        return Reflect.get(target, propName)
    },
    //修改屬性或添加屬性時(shí)調(diào)用
    set (target, propName, value) {
        return Reflect.set(target, propName, value)
    },
    //刪除屬性時(shí)調(diào)用
    deleteProperty (target, propName) {
        return Reflect.deleteProperty(target, propName)
    }
})

// 靜態(tài)開(kāi)發(fā) es6轉(zhuǎn)碼的兩種方式
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
<script type="text/babel">
// Your ES6 code
</script>