本代码是在战舰V3开发板对应的代码基础上做出的更改，文件和原来一样只是内容不同，里面的函数都是可以兼容战舰V3的教学视频的-The code is changed in the battleship V3 development board based on the corresponding code to make, just like the original documents and different content, which functions are compatible w