design_patterns_elements_of_reusable_object_oriented_software

代码说明：

It s a book of design patterns that describes simple and elegant solutions to specific problems in object-oriented software design. Design patterns capture solutions that have developed and evolved over time. Hence they aren t the designs people tend to generate initially. They reflect untold redesign and recoding as developers have struggled for greater reuse and flexibility in their software. Design patterns capture these solutions in a succinct and easily applied form.-Design_Patterns_Elements_Of_Reusable_Object_Oriented_Software