中文XML论坛--这是我设计的考试系统的xml的dtd 请诸位前辈帮忙看看

贴子主题：这是我设计的考试系统的xml的dtd 请诸位前辈帮忙看看

本主题类别:

<!ELEMENT KAOSHI(COURSE,PTYPES,KSYSTEM,PLIBRARY)>
<!------------------------à
<!ELEMENT COURSE(CNO,CNAME,CTIME,FULLMARK)>
<!ELEMENT CNO(#PCDATA)>
<!ATTLIST CNO ID #REQUIRED>
<!ELEMENT CNAME(#PCDATA)>
<!ATTLIST CNAME CDATA #REQUIRED>
<!ELEMENT CTIME<#PCDATA)>
<!ATTLIST CTIME CDATA #REQUIRED>
<!ELEMENT FULLTIME (#PCDATA)>
<!ELEMENT FULLTIME CDATA #REQUIRED>
<!---------------à
<!ELEMENT PTYPE(PNO,PTYPE,PMARK,PNUM,PFULLMARK>
<!ELEMENT PNO(#PCDATA)>
<!ATTLIST PNO ID #REQUIRED>
<!ELEMENT PTYPE (PCDATA)>
<!ATTLIST(FILLING_BLK|SIG_CHSN|MT_CHSN|Q_A) #IMPLIED>
<!ELEMENT PMARK(#PCDATA>
<!ATTLIST PMARK CDATA #REQUIRED>
<!ELEMENT PNUM (PCDATA)>
<!ATTLIST PNUM CDATA #REQUIRED>
<!ELEMENT PFULLMARK(#PCDATA)>
<!ATTLIST PFULLMARK CDATA #REQUIRED>
<!-----------------------à
<!ELEMENT KSYSTEM (KNO,CNO,QUSTION)>
<!ELEMENT KNO(#PCDATA)>
<!ATTLIST KNO ID #REQUIRED>
<!ELEMENT CNO (#PCDATA)>
<!ATTLIST CNO IDREF #REQUIRED>
<!ELEMENT QUSTION (#PCDATA>
<!ALLTIST QUSTION CDATA #REQUIRED>
<!-----------------------à
<!ELEMENT PLIBRARY (PLNO,CNO,PNO,KNO,KHD,QUSTION,AW,OPS)>
<!ELEMENT PLNO(#PCDATA)>
<!ALLTIST PLNO ID #REQUIRED>
<!ELEMENT CNO (#PCDATA)>
<!ATTLIST CNO IDREF #REQUIRED >
<!ELEMENT PNO (#PCDATA)>
<!ATTLIST PNO IDREF #REQUIRED>
<!ELEMENT KNO (#PCDATA)>
<!ATTLIST KNO IDREF #REQUIRED>
<!ELEMENT AW (#PCDATA)>
<!ATTLIST AW CDATA #REQUIRED>
<!ELEMENT OPS (#PCDATA)>
<!ATTLIST OPS CDATA #IMPLIED>


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