github  address

https://github.com/947339463/ee/blob/main/lab2.cpp

Ideas of solving the problem

The problem is to read strings and count themFinding information relies on the Internet and past courseware
Learn file reading and string extraction and counting methods. I decide to use C++ to solve.the judgment conditions for the two structures are very similar, so they are written together.I use "stack" to solve this problem.

Design and implementation process

Summary

I use bilibili to learn c++.In the process of doing or encountered a lot of trouble.Especially for file flows and stacks.Since I wasn't very good at it before, I spent a lot of time learning it this time, but eventually I understood some of it and could barely write code.In general, although I took many detours this time, I felt a sense of achievement when I finally finished the task.In addition, I also learned a lot of knowledge during this period, such as PSP tables, using Github to make flow charts and so on.At the same time, it made me consolidate what I had learned before.By the way, this is my first performance analysis of the code.Honestly, I don't know how to read it.I can get some guidance in the future.I don't know why the function names here are all garbled, right

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