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。

-book design examples from the object-oriented design selected from 23 design patterns, summed up the object-oriented design is the most valuable experience, and succinctly reusable form expression. The book describes the classification of a group of well-designed, clear expression of the software design patterns, These models in a practical environment is particularly useful.