1-2字符串
.........\.classpath
.........\.project
.........\.settings
.........\.........\org.eclipse.jdt.core.prefs
.........\bin
.........\...\alphabeticstring
.........\...\................\AlphabeticString.class
.........\...\................\junquanString1.class
.........\src
.........\...\alphabeticstring
.........\...\................\AlphabeticString.java
.........\...\................\junquanString1.java