<!ELEMENT scholshipperson (studnets)+>
<!ELEMENT studnets (name,remark)>
<!ELEMENT name (order)>
<!ENTITY % na "#PCDATA">
<!ELEMENT name (%na;)>
<!ELEMENT order (#PCDATA)>
<!ELEMENT remark (#PCDATA)>
<!ENTITY % naid "#REQUIRED">
<!ELEMENT id (%naid;)>
<!ATTLIST name class CDATA #REQUIRED >







为什么无效呢？

您瞧瞧呀 <!ELEMENT scholshipperson (studnets)+> <!ELEMENT studnets (name,remark)> <!ELEMENT name (order)> <!ENTITY % na "#PCDATA"> <!ELEMENT name (%na;)> <!ELEMENT order (#PCDATA)> <!ELEMENT remark (#PCDATA)> <!ENTITY % naid "#REQUIRED"> <!ELEMENT id (%naid;)> <!ATTLIST name class CDATA #REQUIRED > 为什么无效呢？