The trick with these types of storage is turning the objects into something that can exist on the other medium,and yet can be resurrected into a regular RAM-based object when necessary.

• 对于这些类型的数据存储，技巧就是将目标转换成能存在于其他媒体中的。一旦需要，甚至能将它们恢复成普通的、基于RAM的对象。