本文根据发表在CUJ Expert Forum上的两篇文章编译而成。C/C++ User s Journal是目前最出色的C/C++语言专业杂志，特别是在C++ Report闭刊之后，CUJ的地位更加突出。CUJ Expert Forum是CUJ主办的网上技术专栏，汇集2000年10月以来C++社群中顶尖专家的技术短文，并免费公开发布，精彩纷呈，是每一个C/C++学习者不可错过的资料。由Jim Hyslop和Herb Sutter主持的Conversation系列，是CUJ Expert Forum每期必备的精品专栏，以风趣幽默的对话形式讲解C++高级技术，在C++社群内得到广泛赞誉。译者特别挑选两篇设计模式方面的文章，介绍给大家。设计模式方面的经典著作是GoF的Design Patterns。但是那本书有一个缺点，不好懂。从风格上讲，该书与其说是为学习者而写作的教程范本，还不如说是给学术界人士看的学术报告，严谨有余，生动不足。这一点包括该书作者和象Bjarne Stroustrup这样的大师都从不讳言。实际上Design Pattern并非一定是晦涩难懂的，通过生动的例子，一个中等水平的C++学习者完全可以掌握基本用法，在自己的编程实践中使用，得到立竿见影的功效。这两篇文章就是很好的例证。本文翻译在保证技术完整性的前提下作了不少删节和修改，以便使文章显得更紧凑。 -Based on the published in CUJ Expert Forum on the two articles from compiler. C / C User's Journal is the most excellent C / C language magazine, especially in the C Report to be closed, the status of CUJ more prominent. CUJ CUJ Expert Forum is sponsored by the online technology column Survey October 2000 C community has been the top technical expert appeared, and free public release, brilliant, Each is a C / C learners should not miss the information. By Jim Hyslop and Herb Sutter auspices of the Conversation series, CUJ Expert Forum is an essential quality each column a humorous forms of dialogue on the High C technology, the C community has been widely acclaimed. Translator selected two design patterns of articles introducing to you. Design patterns of the classics is GoF Design Pat