模拟vue3实现响应式

let obj = {
  a: '1',
  b: '2'
}

const newObj = new Proxy(obj,{
   get(target,property){
      return Reflect.get(target,property)
   },
   set(target,property,value){
      return Reflect.set(target,property,value)
   },
   deleteProperty(target,property){
      return Reflect.deleteProperty(target,property)
   }
})