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📄 schema.htm

📁 这是一本关于XML的学习的书
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</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">Uuid
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">例如</span></font><FONT SIZE=3 class="normal105">"333C7BC4-460F-11D0-BC04-0080C7055A83".</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY">entity</FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT></span>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">entities
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">enumeration
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">id
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">idref
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">idrefs
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">nmtoken
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal9"><span class="normal105">xml</span></span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">nmtokens
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">notation
        </FONT></TD>
      <TD WIDTH="45%"> 
        <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">xml</span></font><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">补充类型</FONT>
      </TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">string
        </FONT></TD>
      <TD WIDTH="45%"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">字符串类型
        </FONT></TD>
</TR>
</TABLE>

<FONT FACE="宋体" LANG="ZH-CN" SIZE=3>
  <P ALIGN="JUSTIFY"></P>
  </FONT><FONT SIZE=3>
  <P ALIGN="JUSTIFY"><span class="normal105">&lt;ElementType dt:type=”int”&gt;&lt;/Element&gt;</span></P>
</FONT>
  <P ALIGN="JUSTIFY"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">上表中只列举了一部分常见数据类型，如果您想得到关于</span></font><span class="normal105"><FONT SIZE=3><span class="normal105">dt:type</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">更详细的信息，请浏览</span></FONT><FONT SIZE=3><span class="normal105">MSD<span class="normal105">N</span></span></FONT><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">。</font></span></span></P>
  <FONT FACE="宋体" LANG="ZH-CN" SIZE=3>
  <P ALIGN="JUSTIFY"></P>
  </FONT> 
  <P ALIGN="JUSTIFY"><span class="normal105"><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">除此之外，元素类型可以有另外一种方式，即引用一个已有的</span></font></span><FONT SIZE=3><span class="normal105">ElementType</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">，请看下例：</span></font></span></P>
  <FONT FACE="宋体" LANG="ZH-CN" SIZE=3>
<P ALIGN="JUSTIFY"></P>
</FONT><FONT SIZE=3>
  <P ALIGN="JUSTIFY"><span class="normal105">&lt;ElementType name="pages" content="textOnly" 
    dt:type=”int” model="closed" /&gt;</span></P>
  <P ALIGN="JUSTIFY"><span class="normal105">&lt;ElementType name="book" content="eltOnly" 
    model="closed" order=”seq”&gt;</span></P>
  </FONT>
  <P ALIGN="JUSTIFY"><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3>&#9;</FONT><FONT SIZE=3 class="normal105">&lt;element 
    type="pages" /&gt; </font></span></P>
  <FONT SIZE=3>
  <P ALIGN="JUSTIFY"> <span class="normal105">&lt;/ElementType&gt;</span></P>
</FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3>
  <P ALIGN="JUSTIFY"></P>
  </FONT> 
  <P ALIGN="JUSTIFY"><span class="normal105"><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">在元素</span></font></span><FONT SIZE=3><span class="normal105">book</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">的定义中，为其定义了一个子元素，子元素的类型引用元素</span></FONT><FONT SIZE=3><span class="normal105">pages</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">的定义。</font></span></P>
  <FONT FACE="宋体" LANG="ZH-CN" SIZE=3>
<P ALIGN="JUSTIFY">　</P>
</FONT><B><FONT FACE="Arial">
  <LI class="normal105">AttrributeType</LI>
</font></B>
  <P ALIGN="JUSTIFY"><FONT SIZE=3><span class="normal105">Attribute</span></font><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">也是</FONT><FONT SIZE=3>xml</FONT><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">的元素之一</FONT><span class="normal105"><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3>，<span class="normal105">用它可以表示</span></FONT></span><FONT SIZE=3><span class="normal105">Element</span></FONT></span></span><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">中的某些特征，自然，我们也希望对</span></FONT><FONT SIZE=3><span class="normal105">attribute</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">的数据结构和数据类型作定义</span>。</font></span></P>
  <P ALIGN="JUSTIFY"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">定义</font><FONT SIZE=3><span class="normal105">AttributeType</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">的基本格式为</font></P>
  <FONT FACE="宋体" LANG="ZH-CN" SIZE=3>
  <P ALIGN="JUSTIFY"></P>
  </FONT><FONT SIZE=3>
  <P ALIGN="JUSTIFY"><span class="normal105">&lt;AttributeType</span></P>
  <P ALIGN="JUSTIFY"><span class="normal105"> default="default-value" </span></P>
  <P ALIGN="JUSTIFY"><span class="normal105"> dt:type="primitive-type" </span></P>
  <P ALIGN="JUSTIFY"><span class="normal105"> dt:values="enumerated-values" </span></P>
  <P ALIGN="JUSTIFY"><span class="normal105"> name="idref" </span></P>
  <P ALIGN="JUSTIFY"><span class="normal105"> required="{yes | no}" &gt;</span></P>
</FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><P ALIGN="JUSTIFY"></P></FONT>
<TABLE BORDER CELLSPACING=1 CELLPADDING=7 WIDTH=611>
<TR>
      <TD WIDTH="10%" VALIGN="middle"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">default 
        </FONT></TD>
      <TD WIDTH="90%" VALIGN="middle"> 
        <P ALIGN="JUSTIFY"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">设定</span></font><span class="normal105"><FONT SIZE=3><span class="normal105">attribute</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">的默认值，必须注意的是，</span></FONT><span class="normal105"><FONT SIZE=3><span class="normal105">default</span></FONT><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">的值也必须符合</FONT></span></span><FONT SIZE=3><span class="nocolor"><span class="normal105"><span class="normal105">AttributeType</span></span></span></FONT><span class="normal105"><span class="normal105"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">中其他对数据结构的定义</FONT></span></span></span> 
      </TD>
</TR>
</TABLE>

<FONT FACE="宋体" LANG="ZH-CN" SIZE=3><P ALIGN="JUSTIFY"></P></FONT>
  <TABLE BORDER CELLSPACING=1 CELLPADDING=7 WIDTH=611>
    <TR valign="middle"> 
      <TD WIDTH="10%" ROWSPAN=20> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">Dt:type
        </FONT></TD>
      <TD WIDTH="26%" ROWSPAN=20> 
        <P ALIGN="JUSTIFY"><FONT FACE="宋体" LANG="ZH-CN" SIZE=3><span class="normal105">用于指定</span></font><span class="normal105"><FONT SIZE=3><span class="normal105">Attribute</span></FONT><FONT FACE="宋体" LANG="ZH-CN" SIZE=3 class="normal105">的数据类型</FONT></span>
      </TD>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">boolean
        </FONT></TD>
      <TD WIDTH="45%"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">布尔型
        </FONT></TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">char
        </FONT></TD>
      <TD WIDTH="45%" class="normal105"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">字符型
        </FONT></TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">date
        </FONT></TD>
      <TD WIDTH="45%" class="normal105"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">日期型
        </FONT></TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">Date time
        </FONT></TD>
      <TD WIDTH="45%" class="normal105"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">日期时间型
        </FONT></TD>
</TR>
<TR>
      <TD WIDTH="19%"> <FONT SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">Float
        </FONT></TD>
      <TD WIDTH="45%" class="normal105"> <FONT FACE="宋体" LANG="ZH-CN" SIZE=3> 
        <P ALIGN="JUSTIFY" class="normal105">实型
        </FONT></TD>
</TR>
<TR>
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