python之xml模块

import xml.etree.ElementTree as ET

data=ET.parse(‘xml_lesson‘)

root=data.getroot()

for i in root:

      for j in i:

          print(j.tag)

for i in root:

      print(i.attrib)

for i in root:

     for j in i:

            print(j.text)                  

for label in root.iter(‘year‘):

          print(label.tag,label.text)

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for label in root.iter(‘year‘):

        year_text=int(label.text)+1

        label.text=str(year_text)

        label.set(‘updated‘,‘yes‘)

tree.write(‘xml_lesson‘)                     //修改

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for country in root.findall(‘country‘):

         data=int(country.find(‘rank‘).text)

         if data>50:

              root.remove(country)

tree.write(‘abc.xml‘)                          //删除

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import xml.etree.ElementTree as ETdata=ET.Element(‘data‘)country=ET.SubElement(data,‘country‘,attrib={‘name‘:‘Singapore‘})rank=ET.SubElement(country,‘rank‘,attrib={‘updated‘:‘yes‘})year=ET.SubElement(country,‘year‘,attrib={‘updated‘:‘yes‘})year.text=‘2010‘et=ET.ElementTree(data)et.write(‘test1.xml‘,encoding=‘utf-8‘,xml_declaration=True)              //新建一个xml文档‘‘‘

<?xml version=‘1.0‘ encoding=‘utf-8‘?><data>    <country name="Singapore">        <rank updated="yes" />        <year updated="yes">2010</year>    </country></data>‘‘‘