编辑功能：如插入、删除、修改、光标移动、显示行号列号、提示信息等；块操作：如剪切、拷贝、删除、粘贴等操作；文件操作：打开、关闭、保存、另存、插入等操作；既可热键也可使用菜单完成功能；完成鼠标的相关操作；(Editor: such as insert, delete, move the cursor and display the line column number, prompt information; block operation: such as shear, copy, delete