PetShop是一个范例，微软用它来展示.Net企业系统开发的能力。业界有许多.Net与J2EE之争，许多数据是从微软的PetShop和 Sun的PetStore而来。这种争论不可避免带有浓厚的商业色彩，对于我们开发人员而言，没有必要过多关注。然而PetShop随着版本的不断更新， 至现在基于.Net 2.0的PetShop5.0为止，整个设计逐渐变得成熟而优雅，却又很多可以借鉴之处。PetShop是一个小型的项目，系统架构与代码都比较简单，却 也凸现了许多颇有价值的设计与开发理念。(PetShop is an example of how Microsoft uses it to demonstrate the capabilities of.Net enterprise systems development. The industry has a lot of.Net and J2EE dispute, many data from Microsoft's PetShop and Sun's PetStore come. This debate is inevitable, with a strong commercial color, and there is no need to pay too much attention to our developers. However, with the constant updating of the version, and now the PetShop5.0 based.Net 2, the whole design has matured and refined, but there are many lessons to learn from PetShop. PetShop is a small project, the system architecture and code are relatively simple, but it also highlights many valuable design and development concepts.)