设计模式.epub 全书共分为四部分，第一部分从原理的角度阐述了面向对象程序设计的3大原则；第二部生动地讲解和剖析了21种常见的设计模式，并进行了扩展，通俗易懂，趣味性极强而又紧扣模式的核心；第三部分对各种相关联的设计模式进行了深入分析和比较，旨在阐明各种设计模式比较理想的应用场景和它们之间的区别；第四部分探讨了设计模式的混编，讲解了如何在实际开发中将各种设计模式混合起来使用，以发挥设计模式的最大效用(.epub design pattern of the book is divided into four parts, the first part from the perspective of the principle for the 3 principles of the object program design; second vivid explanation and analysis of the 21 kinds of common design patterns, and extended, easy to understand, very interesting and closely linked to core mode; third part of all the relevant design patterns are analyzed and compared to the difference between various application scenarios illustrate design patterns and their ideal; the fourth part discusses the design pattern of the mixed, explain how in the actual development of various design pattern of mixed use, to maximize design patterns)