Introduction - If you have any usage issues, please Google them yourself
Recently learned some knowledge of data structures, and then try to achieve a small game list (snake), see some people write code on the Internet, and then rewrite (before is a main function, it is divided into several small function and convenient viewing, plus a deallocator function). Here I publish my first technical blog. I hope everyone will discuss and study together. If there is a mistake, we will actively point out that there will be progress in this way.