《Developing Application fr a meworks in .NET》的读书笔记。SAF 是书中的一个范例框架，意为 Simple Application fr a mework(简单应用程序框架)，SAF 中缓存服务的实现方式。-"Developing Application fr a meworks, the study notes in the. NET. SAF is an example of a fr a mework of the book, meaning S