摘要： What Refacing：重构（Refactoring）就是在不改变软件现有功能的基础上，通过调整程序代码改善软件的质量、性能，使其程序的设计模式和架构更趋合理，提高软件的扩展性和维护性。经典的Refacing Definition：（1）Refactoring means rewriting existing source code with the intent of improving its design rather than changing its external behavior. The focus of refactoring is on the structure o 阅读全文