Question

我正在使用xml.etree.ElementTree解析以下XML文件：

<main>
    <stream id="1" name="some">
        <inner id="500">
              <sub-inner>
                 <inside> 500 </inside>
              <sub-inner>
        <inner>
    <stream id="2" name="some">
        <inner id="500">
              <sub-inner>
                 <inside> 500 </inside>
              <sub-inner>
        <inner>
    </stream>
</main>

如何将<outer>200</outer>元素插入＆lt;子内和GT;标签where stream id =＆＃34; 2＆＃34;一个？

Answer 1

import xml.etree.ElementTree as ET

root = ET.fromstring('''
<main>
    <stream id="1" name="some">
        <inner>500</inner>
    </stream>
    <stream id="2" name="some">
        <inner>500</inner>
    </stream>
</main>''')
stream = root.find('.//stream[@id="2"]')
outer = ET.SubElement(stream, 'outer')
outer.text = '200'
print(ET.tostring(root))

输出：

<main>
    <stream id="1" name="some">
        <inner>500</inner>
    </stream>
    <stream id="2" name="some">
        <inner>500</inner>
    <outer>200</outer></stream>
</main>

如果您希望outer出现在inner：

之前

...
stream = root.find('.//stream[@id="2"]')
outer = ET.Element('outer')
outer.text = '200'
stream.insert(0, outer)
print(ET.tostring(root))

输出：

<main>
    <stream id="1" name="some">
        <inner>500</inner>
    </stream>
    <stream id="2" name="some">
        <outer>200</outer><inner>500</inner>
    </stream>
</main>

用于在xml中添加标记的Python代码，其中父标记是具有不同属性的多个标记

1 个答案: