界面部分和业务部分物理分离。将业务部分和界面部分分别编译成dll和exe可执行文件。

定义一个接口部分以实现界面部分和业务部分之间通讯。接口部分可使用接口或抽象类来实现。一定要保持接 口的稳定，轻易不要改变接口单元中的内容。还可通过预留接口来满足未来功能增长的需求。



经常变动的通常是业务部分，通过修改DLL封装对象的实现方法来升级DLL，无需重新修改和编译界面部分的Exe文件。-Interface part and the operational part of the physical separation. The operational part and the interface separately compiled dll and exe executable file. Part of the definition of an interface in order to achieve the interface between the part and the operational part of the communication. Interface part of the interface or abstract class can be used to achieve. The interface must maintain a stable, easy not to change the interface unit in the content. Interface can also be reserved to meet future growth in demand functions. Constantly changing business is usually part of the object by modifying the DLL package implementation methods to upgrade DLL, without having to re-modify and compile interface part of the Exe file.