Instead of doing it, it looked at the C review and cachelab recitation, which was taught by the teaching assistants. It felt a lot better than the David. After hearing it, the cache structure was basically clear.
And then look at the two functions that the lab needs to use:
getopt（） And fscanf ()
Well, that’s basically the way it is.
Recently, when I read all kinds of news, I always feel that the economy is likely to collapse at any moment. But anyway, we have to go all the way and worry about it.