-- 发布时间：7/29/2004 12:17:00 PM
-- 为什么我的外部DTD引用不正确？？？？？？？？
外部DTD：default.dtd
<?xml version="1.0" encoding="gb2312"?>
<!ELEMENT WorkflowProcess(Activities,Transitions,FirstActivity,LastActivity)>
<!ATTLIST WorkflowProcess Name CDATA #REQUIRED >
<!ELEMENT Activities(Activity+)>
<!ELEMENT Activity(#PCDATA)>
<!ATTLIST Activity Name CDATA #REQUIRED>
<!ELEMENT Transitions(Transition+)>
<!ELEMENT Transition(Condition)>
<!ATTLIST Transition
From CDATA #REQUIRED
To CDATA #REQUIRED
>
<!ELEMENT Condition(#PCDATA)>
<!ATTLIST Condition Type CDATA #REQUIRED>
<!ELEMENT FirstActivity(#PCDATA)>
<!ELEMENT LastActivity(#PCDATA)>
XML文件：
<?xml version="1.0" encoding="gb2312" ?>
<!DOCTYPE Workflowmodel SYSTEM "Default.dtd">
<WorkflowProcess Name="model1">
<Activities>
<Activity Name="starttnode" />
<Activity Name="lastnode" />
<Activity Name="midnode" />
</Activities>
<Transitions>
<Transition From="starttnode" To="midnode">
<Condition Type="yes" />
</Transition>
<Transition From="midnode" To="lastnode">
<Condition Type="yes" />
</Transition>
<Transition From="lastnode" To="starttnode">
<Condition Type="no" />
</Transition>
</Transitions>
<FirstActivity>starttnode</FirstActivity>
<LastActivity>lastnode</LastActivity>
</WorkflowProcess>
请各位大侠帮助一下，每次检验都说：缺少所需的空白区。谢谢各位指导！！！