Enterprise Library是微软Patterns & Practices 项目组 推出的公共模块解决方案，用来解决我们在企业级开发中遇到公共问题，如配置管理、数据访问、缓存管理、记录操作日志、异常管理、加密解密、权限管理等。-Enterprise Library is Microsoft Patterns &　Practices project team launched a public module solutions to solve our enterprise-class development in the face of public questions, such as configuration management, data access, cache management, record operating logs, exception management, encryption and decryption , permissions management.