重构（refactoring）这个概念来自Smalltalk圈子，没多久就进入了其他语言阵营之中。由于重构是framework（框架〉开发中不可缺少的一部分，所以当framework开发人员讨论自己的工作时，这个术语就诞生了。当他们精炼自己的class hierarchies (类阶层体系〉时，当他们叫喊自己可以拿掉多少多少行代码时，重构的概念慢慢 浮出水面。framework设计者知道，这东西不可能一开始就完全正确，它将随着设 计者的经验成长而进化；他们也知道，代码被阅读和被修改的次数远远多于它被编 写的次数。保持代码易读、易修改的关键，就是重构——对framework如此， 对一般软件也如此。-Refactoring (refactoring) the concept from Smalltalk circles, not long into the other language camp. Because remodeling is framework (framework> an integral part of development, so when the framework developers to discuss their work, the term was born, when they refined their own class hierarchies (class class system>, when they cry themselves so many lines of code can be removed when the reconstruction of the concept of slowly surfaced. framework designers know that this thing can not start completely correct, it will grow with the evolution of the designer s experience　they also know that code is read and modified far more often than it is written the number of times to keep the code easy to read, easy to modify the key, is reconstruction- the case of the framework, the software is also the case in general.