create and remove and and update

crud2\.classpath
.....\.mymetadata
.....\.project
.....\.settings\.jsdtscope
.....\.........\org.eclipse.wst.jsdt.ui.superType.container
.....\.........\org.eclipse.wst.jsdt.ui.superType.name
.....\src\org\csdn\db\MyData.java
.....\...\...\....\..\Person.java
.....\...\...\....\net\CalcControlServlet.java
.....\...\...\....\...\DeleteServlet.java
.....\...\...\....\...\MainServlet.java
.....\...\...\....\...\SelServlet.java
.....\WebRoot\aa.jsp
.....\.......\index.jsp
.....\.......\META-INF\MANIFEST.MF
.....\.......\reg.jsp
.....\.......\sel.jsp
.....\.......\show.jsp
.....\.......\WEB-INF\classes\org\csdn\db\MyData.class
.....\.......\.......\.......\...\....\..\Person.class
.....\.......\.......\.......\...\....\net\CalcControlServlet.class
.....\.......\.......\.......\...\....\...\DeleteServlet.class
.....\.......\.......\.......\...\....\...\MainServlet.class
.....\.......\.......\.......\...\....\...\SelServlet.class
.....\.......\.......\web.xml
.....\.......\.......\classes\org\csdn\db
.....\.......\.......\.......\...\....\net
.....\.......\.......\.......\...\csdn
.....\src\org\csdn\db
.....\...\...\....\net
.....\WebRoot\WEB-INF\classes\org
.....\src\org\csdn
.....\WebRoot\WEB-INF\classes
.....\.......\.......\lib
.....\src\org
.....\WebRoot\META-INF
.....\.......\WEB-INF
.....\.myeclipse
.....\.settings
.....\src
.....\WebRoot
crud2

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