说明：  该程序报告里的程序是使用Java编写的，实现记事本的功能，参考windows中记事本的功能。要求打开文件，读取文件中的文本信息。显示、编辑修改文本信息。实现对字体、颜色等的控制保存文本信息到指定的文件
(The program report of the program is written using Java to achieve the functions notepad, reference windows in the Notepad function. Required to open the file, read the file in the text information. Display, edit, modify the text messages. Realize the fonts, colors, save the text information such as the control to the specified file)