边做饭一边被人从后面

This chapter is the last lecture on design patterns. It will talk about the third design pattern-behavioral pattern, with a total of 11 types: policy pattern, template method pattern, observer pattern, iterative sub-pattern, responsibility chain pattern, command pattern, memo pattern, state pattern, visitor pattern, intermediary pattern and interpreter pattern. I have been writing about design patterns for a long time. At last it's halfway through, Writing a blog post is a very time-consuming thing, Because I have to be responsible for the readers, Whether it's graphs, codes, or representations, Everyone hopes to write it as clearly as possible so that readers can understand it. I think both I and the readers hope to see high-quality blog posts come out. Starting from myself, I will stick to it and update it continuously. The continuous motivation comes from the continuous support of readers and friends. I will do my best to write every article well! I hope everyone can give opinions and suggestions continuously and jointly create a perfect blog post!把我房门前摆几盆，当花儿养。Flammable fibres: Acrylic, wool, polyamide, polyester and silk1949年10月，新中国刚成立不久，百废待兴，各行各业急需人才建设。为了更好发展国家建设，中国高层特别派出一批专家搭乘专列前往苏联学习。1. Press and hold the power key on the right side of the mobile phone;"We were late. During the Dragon Boat Festival, Tang's monk was prepared for something. However, the platform has been collecting money normally, so take chances. As a result, he suddenly did not pay back the money that day and was wound up a day later."