new Proxy对象生成一个新的对象，对目标对象做一个代理 ```js // Proxy 代理 const xu = { name: "x", age: 26, }; const proxy = new Proxy(xu, { get(obj, property) { return obj[property] }, set(obj, property, value) { obj[property] = value } }); console.log(proxy.name); ```