文本编辑器，小试牛刀 java swing 开发-Text editor, java swing chopper pilot development

简单的文本编辑器 实现打开 保存 修改 关闭 还添加了菜单栏-Simple text editor open the saved changes to achieve closure also add menu bar

自己用java Swing写的一个文本编辑器，实现编辑功能，分页功能，树形目录，还有提供自己定义关键字文档的接口。-Own use java Swing write a text editor, to achieve editing, paging, directory tree, as well as provide their own definition keyword document interface.