1. But the Sort() method does not need to unbox both objects to call CompareTo(). 但是Sort（）方法不需要对所有的对象进行拆箱再调用CompareTo（）。
2. "It is an art, " he says. "You have to unbox it quickly, and talk about it at the same time. 他说，这是一门艺术，你需要快速打开包装，同时作出评论。
3. When you access the struct through the interface pointer, you don't have to unbox the struct to access that object. 当你通过接口指针访问接口的时候，没必要对结构体进行拆箱后再访问那个对象了。为了举例，想象该结构体定义了一个链接和一个描述。
