Android 10  |  10.0.0_r6
Xml文件  |  14行  |  227 B 

<!DOCTYPE doc [
<!ELEMENT doc (src | dest)*>
<!ELEMENT src EMPTY>
<!ELEMENT dest EMPTY>
<!ATTLIST src ref IDREF #IMPLIED>
<!ATTLIST dest id ID #IMPLIED>
]>
<doc>
  <src ref="foo"/>
  <dest id="foo"/>
  <src ref="foo"/>
</doc>