Question

我有xml文件，如下所示，下面的脚本我可以用（root.iter）更改任何特定元素国家/地区的值。如何修改特定neighbor的{{1}}值，例如第一个或第二个？

country

代码

<data>
    <country name="vers1" value="1"> (can change its value with below script)
     <neighbor name="test" value="E"/> (how to change its value?????)
    </country>
    <country name="vers2" value="2">
     <neighbor name="test" value="N"/>
    </country>
    <country name="vers3" value="3">
     <neighbor name="test" value="W"/>
    </country>
</data>

Answer 1

使用 xpath 从xml获取目标标记：

<强>演示：

#Change value of neighbor for  vers2 country , 
import xml.etree.ElementTree as ET

#tree = ET.parse('test.xml')
root = ET.fromstring(data)
neighbors = root.findall("country[@name='vers2']/neighbor[@name='test']")
for i in neighbors:
    i.attrib["value"] = "changed"

print "Output:", ET.tostring(root)

<强>输出：

Output: <data>
    <country name="vers1" value="1"> (can change its value with below script)
     <neighbor name="test" value="E" /> (how to change its value?????)
    </country>
    <country name="vers2" value="2">
     <neighbor name="test" value="changed" />
    </country>
    <country name="vers3" value="3">
     <neighbor name="test" value="W" />
    </country>
</data>

使用python在xml文件中设置或获取某个元素

1 个答案: