说明：  这是一个很厉害的JAVA程序，几乎是每个JAVA初学者都会用到的，它是文本编辑的应用程序，虽然很小，可是实现了大部分的功能的程序
(This is a very powerful JAVA program, which is almost every Java beginners will be used. It is a text editor application, although small, but achieved most of the function of the process)