Part1:
1. The pattern knowledge provides a general program, whether it is necessary to add a new feature depends on the programming environment, they are just blueprints, not dead. 2. Discover design mode a "common disease": It seems that it will complicate simple questions, like In different classes, the third party is added, of course, the robustness of the robustness is conducive to the code, and if the problem seems to be complicated, it is better to find a second option. 4. Follow the function Classified roles, only consider responsibility, do not consider specific data .5. Package: More than just data hidden (car and umbrella) Hiding Anything and packages all changed 6. Remember to write a document to a document. Look
Part2:
(Reproduced)
