本书的目的就是将面向对象软件的设计经验作为设计模式记录下来。每一个设计模式

系统地命名、解释和评价了面向对象系统中一个重要的和重复出现的设计。我们的目标是将

设计经验以人们能够有效利用的形式记录下来。鉴于此目的，我们编写了一些最重要的设计

模式，并以编目分类的形式将它们展现出来-The purpose of this book is to experience in the design of object-oriented software design patterns, as recorded. Each design pattern systematically names, interpretation and evaluation of object-oriented system, an important and recurring design. Our goal is to design experience in a form that people can effectively use in the form of the record. For this purpose, we prepared some of the most important design patterns and to cataloging them to show up in the form of