python - 使用 Python ElementTree 解析 XML

Question

我有一个以下格式的 XML 文档

<root>
<H D="14/11/2017">
<FC>
    <F LV="0">The quick</F>
    <F LV="1">brown</F>
    <F LV="2">fox</F>
</FC>
</H>
<H D="14/11/2017">
<FC>
    <F LV="0">The lazy</F>
    <F LV="1">fox</F>
</FC>
</H>
</root>

如何从 H 标签内的“D”中提取文本以及 F 标签内的所有文本。

Answer 1

来自 ElementTree docs :

We can import this data by reading from a file:

import xml.etree.ElementTree as ET

tree = ET.parse('country_data.xml')
root = tree.getroot()

Or directly from a string:

root = ET.fromstring(country_data_as_string)

以及稍后在同一页面中的 20.5.1.4。寻找有趣的元素:

for neighbor in root.iter('neighbor'):
    print(neighbor.attrib)

转化为:

import xml.etree.ElementTree as ET

root = ET.fromstring("""
<root>
<H D="14/11/2017">
<FC>
    <F LV="0">The quick</F>
    <F LV="1">brown</F>
    <F LV="2">fox</F>
</FC>
</H>
<H D="14/11/2017">
<FC>
    <F LV="0">The lazy</F>
    <F LV="1">fox</F>
</FC>
</H>
</root>""")
# root = tree.getroot()
for h in root.iter("H"):
    print (h.attrib["D"])
for f in root.iter("F"):
    print (f.attrib, f.text)

输出:

14/11/2017
14/11/2017
{'LV': '0'} The quick
{'LV': '1'} brown
{'LV': '2'} fox
{'LV': '0'} The lazy
{'LV': '1'} fox