遍历链表\build.xml
........\manifest.mf
........\nbproject\build-impl.xml
........\.........\genfiles.properties
........\.........\private\private.properties
........\.........\project.properties
........\.........\project.xml
........\src\example\Example2.java
........\nbproject\private
........\src\example
........\nbproject
........\src
........\test
遍历链表