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  • xml模块

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    f = ET.parse('xmltest')     #解析
    root = f.getroot()  #root为根节点
    print(root.tag)         #tag 标签
    
    #遍历xml文档
    for child in root:
        print(child.tag,child.attrib)   #.attrib归属,属性
        for i in child:
            print('	',i.tag,i.attrib,i.text)
    
    
    #只遍历year 节点
    for node in root.iter('year'):      #.iter  方法
        print(node.tag,node.text)       #.text  .tag
    

      

    修改和删除xml文档内容

    import xml.etree.ElementTree as ET
    f = ET.parse('xmltest')
    root = f.getroot()
    
    #修改
    for node in root.iter('year'):      #.iter
        new_year = int(node.text)+1
        node.text = str(new_year)       #.text
        node.set("updated","yes")       #.set   增加属性
    
    f.write("xmltest2")
    
    
    #删除node
    for country in root.findall('country'): #.findall
       rank = int(country.find('rank').text)    #.find
       if rank > 50:
         root.remove(country)       #.remove
    
    f.write('output.xml')
    

      

    创建xml文档

    import xml.etree.ElementTree as ET
    
    root = ET.Element("namelist")
    
    name = ET.SubElement(root,'name',attrib={"enrolled":"yes"})
    age = ET.SubElement(name,"age",attrib={"checked":"no"})
    sex = ET.SubElement(name,'sex')
    sex.text = '33'
    
    name2 = ET.SubElement(root,'name2',attrib={"enrolled":"no"})
    age = ET.SubElement(name,"age")
    age.text = '19'
    
    et = ET.ElementTree(root) #生成文档对象
    et.write("xmltest3.xml", encoding="utf-8",xml_declaration=True)
    
    ET.dump(root) #打印生成的格式
    

      

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  • 原文地址:https://www.cnblogs.com/fengdao/p/6080224.html
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