说明： Java新手学习使用Java操作XML文件的最好的实例，它包括创建XML文件，修改XML文件等操作代码.
(Java novice learning to use Java to operate XML document of the best examples It includes the creation of XML documents, modify the XML file such an operation code.)
文件列表：
jtreeTest
.........\bak
.........\...\SaxTree.java~1~
.........\...\SaxTree.java~2~
.........\...\SaxTree.java~3~
.........\...\SaxTree.java~4~
.........\...\SaxTree.java~5~
.........\...\SaxTree.java~6~
.........\...\SaxTree.java~7~
.........\...\SaxTree.java~8~
.........\...\SaxTree.java~9~
.........\...\XTree.java~1~
.........\...\XTreeTester.java~1~
.........\classes
.........\.......\Content.class
.........\.......\package cache
.........\.......\.............\unnamed package.dep2
.........\.......\SaxTree.class
.........\.......\XTree.class
.........\.......\XTreeTester$1.class
.........\.......\XTreeTester.class
.........\first1.xml
.........\jtreeTest.jpx
.........\jtreeTest.jpx.local
.........\jtreeTest.jpx.local~
.........\maize.xml
.........\src
.........\...\SaxTree.java
.........\...\XTree.java
.........\...\XTreeTester.java
