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单选题
For debugging purposes, you need to record how many times a given JSP is invoked before the user’ssession has been created. The JSP’s destroy method stores this information to a database. Which JSPcode snippet keeps track of this count for the lifetime of the JSP page?()
A

<%! int count = 0; %><% if ( request.getSession(false) == null ) count++; %>

B

<%@ int count = 0; %>. <% if ( request.getSession(false) == null ) count++; %>

C

<% int count = 0;. if ( request.getSession(false) == null ) count++; %>

D

<%@ int count = 0;. if ( request.getSession(false) == null ) count++; %>

E

<%! int count = 0;. if ( request.getSession(false) == null ) count++; %>


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