一文详解测试Python读写xml配置文件

<?xml version="1.0"?>
<data>
    <country name="Liechtenstein">
        <rank>1</rank>
        <year>2008</year>
        <gdppc>141100</gdppc>
        <neighbor name="Austria" direction="E"/>
        <neighbor name="Switzerland" direction="W"/>
    </country>
    <country name="Singapore">
        <rank>4</rank>
        <year>2011</year>
        <gdppc>59900</gdppc>
        <neighbor name="Malaysia" direction="N"/>
    </country>
    <country name="Panama">
        <rank>68</rank>
        <year>2011</year>
        <gdppc>13600</gdppc>
        <neighbor name="Costa Rica" direction="W"/>
        <neighbor name="Colombia" direction="E"/>
    </country>
</data>

import xml.etree.ElementTree as ET

def ShowSubElement(curElement,level):
    print(level,' tag:',curElement.tag,'attribute:', curElement.attrib,'text:',curElement.text)
    for child in curElement:
        ShowSubElement(child,level+1)
tree = ET.parse('test.xml')
level=1
root = tree.getroot()
ShowSubElement(root,level)

import xml.etree.ElementTree as ET

root = ET.Element('root')
root.set('ver','2.0')

classA=ET.Element('classA')
root.append(classA)
classA.set("master","张三")
classA.set("grade","一年级")
studentA=ET.Element('studentA')
classA.append(studentA)
studentA.text='小米'

classB=ET.SubElement(root,'classB')
classB.set("master","李四")
classB.set("grade","三年级")
studentB=ET.SubElement(classB,'studentB')
studentB.text='小明'

tree = ET.ElementTree(root)
tree.write("writetest.xml")

from xml.dom.minidom import parse

def ShowSubNode(curNode):
    print('节点:',curNode.nodeName,":",curNode.nodeValue)

    if curNode.nodeName=='#text':
        return
    if curNode.hasAttributes:
        for attr in curNode.attributes.values():
            print('属性:',attr.name,':',attr.value)

    if curNode.hasChildNodes:
        for child in curNode.childNodes:
            ShowSubNode(child)

doc = parse('test.xml')
root = doc.documentElement
ShowSubNode(root)

import xml.dom.minidom

doc = xml.dom.minidom.Document()

root=doc.createElement("root")
root.setAttribute('ver','2.0')
doc.appendChild(root) 

classA=doc.createElement('classA')
root.appendChild(classA)
classA.setAttribute("master","张三")
classA.setAttribute("grade","一年级")
studentA=doc.createElement('studentA')
classA.appendChild(studentA)
studentA.appendChild(doc.createTextNode('小米'))

classB=doc.createElement('classB')
root.appendChild(classB)
classB.setAttribute("master","李四")
classB.setAttribute("grade","三年级")
studentB=doc.createElement('studentB')
classB.appendChild(studentB)
studentB.appendChild(doc.createTextNode('小明'))

with open("writetest1.xml", "w", encoding='utf-8') as f:
    doc.writexml(f, indent='\t', addindent='\t', newl='\n', encoding="utf-8")