(Good evening, friends from all over the world, because this week we have added 5 consecutive overnight shifts in the enterprise, and the project is too tight. Fortunately, MOMO did not hang onto the enterprise and successfully returned to the warm home Gaga. However, MOMO still keeps in mind that we will update our blog as soon as we get back, and share an example that is very effective in software development. It is also a small example that I use in working overtime overnight these days, such as monitoring log information in the program.)