Soft test-compilation principles

I watched the compilation principle video yesterday, because I used to learn the theory of formal language and automation, so it seems easier to explain this video.

 

 

Grammar is the rule of language. According to this rule, it is OK. I remember that when I first started this course, I thought this was not the same as my usual mindset. However, from a machine perspective, it is easier to think about it. After all, the compilation principle is to allow the machine to compile the program.Code. To sum up the structure: