("NexttoMyLife, SoftwareIsMyPassion" - RobertC.Martin. Understand the design pattern, you will understand the essentials of object-oriented analysis and design (OOA/D). The reverse is also possible to build. Road to Road, very Avenue. The road is not far, and so is the design pattern. I have always wanted to share my learning experience and experience in the project with everyone, but I can't make this decision: the study and summary of the 23 modes of GoF will always take some time, but time is too old for me. It is impossible to estimate. There are two factors for this decision: one is Robert's motto, and the other is because I am a grateful person, as it is often said: with a grateful heart, there will be no regrets in life. Thinking about the pain when reading the GoF Bible at that time, the exploration when realizing the 23 patterns, and the joy after enlightenment, I think it still has this meaning
C Design Patterns (with examples).pdf)