就我而言,我有:
<booklist>
<book id="1">
</book>
<book id="2">
</book>
<book id="3">
</book>
......
</booklist>
我怎么才能回来:
<booklist>
<book id="1">
</book>
</booklist>
如果我使用/booklist/book[@id=1],我只能得到
<book id="1">
</book>
但我还需要文档元素.谢谢