Reflect对象的方法清单如下，共13个。

    • Reflect.apply(target,thisArg,args)
    • Reflect.construct(target,args)
    • Reflect.get(target,name,receiver)
    • Reflect.set(target,name,value,receiver)
    • Reflect.defineProperty(target,name,desc)
    • Reflect.deleteProperty(target,name)
    • Reflect.has(target,name)
    • Reflect.ownKeys(target)
    • Reflect.isExtensible(target)
    • Reflect.preventExtensions(target)
    • Reflect.getOwnPropertyDescriptor(target, name)
    • Reflect.getPrototypeOf(target)
    • Reflect.setPrototypeOf(target, prototype)

    参考http://caibaojian.com/es6/proxy.html