TxtEdit
.......\.classpath
.......\.project
.......\.settings
.......\.........\org.eclipse.jdt.core.prefs
.......\bin
.......\...\a.txt
.......\...\filter
.......\...\......\Command.class
.......\...\......\CommandFrame.class
.......\...\......\EditorJFrame$1.class
.......\...\......\EditorJFrame.class
.......\...\......\FileExtensionFilter.class
.......\...\......\MyInterfacePane.class
.......\...\......\MyPane.class
.......\...\......\Test.class
.......\src
.......\...\a.txt
.......\...\filter
.......\...\......\Command.java
.......\...\......\CommandFrame.java
.......\...\......\EditorJFrame.java
.......\...\......\FileExtensionFilter.java
.......\...\......\MyInterfacePane.java
.......\...\......\MyPane.java
.......\...\......\Test.java
.......\新建文件夹