请参见无法启动接口.它只是定义对象定义的规则.

因此，一旦实现了一个接口，您将使用与不使用它的类相同的方法和功能.

因此，要获取原始对象的值，请使用:

See Interface cant be initiated. Its just a rule which defines an object defination.

So once you implement an interface, you will be using the methods and functions the same way as you do with a class without it.

so to get the value of original object use :

<br />
this.Properties

ext 实际上是创建的新对象，并且您没有在UpdateProperties内部设置属性的任何值.

ext is actually a new object created and you didnt set any value for Properties inside UpdateProperties.