最近学习了一些数据结构的知识，然后试着用链表实现一个小游戏（贪吃蛇），在网上看了一些别人写的代码，然后自己重新改写（以前是一个主函数，现在分成了几个小函数方便查看功能，加了内存释放函数）了。在这里发表自己的 第一篇技术博客，希望大家一起讨论、学习，如果有错误，大家积极指出，这样才会有进步！(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.)