本书设计实例从面向对象的设计中精选出 23 个设计模式，总结

了面向对象设计中最有价值的经验， 并且用简洁可复用的形式表达出

来。本书分类描述了一组设计良好，表达清楚的软件设计模式，这些

模式在实用环境下有特别有用。-The book design examples from object-oriented design in the selection of 23 design patterns, summary

Object-oriented design is the most valuable experience, and with a simple form of reusable express

Come. This book describes the classification of a set of design, software design patterns expressed clearly, these

Modes are particularly useful in the practical environment.