这个是使用Javaframe来编写的一个简易版的记事本，实现其基本功能-This is to use Javaframe to write a simple version of Notepad, to achieve its basic functions

用单个记事本实现的简易贪吃蛇游戏，麻雀虽小，五脏俱全-Achieved with a single simple Notepad Snake game, small but perfectly formed