xml - 一个 XML 文档可以有多少个父节点？

Question

是否可以有不止一组父节点？

例子:

<?xml version="1.0" encoding="UTF-8" ?>
<parentOne>
    <child>
          <subChild></subChild>
     </child>
</parentOne>
<parentTwo>
    <child>
          <subChild></subChild>
     </child>
</parentTwo>

有没有办法解决这个问题？

Answer 1

简短回答:否。

每个 XML 文档都有 exactly one root element根据 standard .

[Definition: There is exactly one element, called the root, or document element, no part of which appears in the content of any other element.] For all other elements, if the start-tag is in the content of another element, the end-tag is in the content of the same element. More simply stated, the elements, delimited by start- and end-tags, nest properly within each other.

改用这样的东西:

<?xml version="1.0" encoding="UTF-8" ?>
<parents>
    <parent id="One">
        <child>
              <subChild></subChild>
         </child>
    </parent>
    <parent id="Two">
        <child>
              <subChild></subChild>
         </child>
    </parent>
</parents>