python 解析xml

 现在有a.xml

<CallLogs>
 <CallLog>
        <Flags>2</Flags>
        <Duration>20</Duration>
        <StartTime>2019-05-10 14:46:55</StartTime>
        <ContactName></ContactName>
        <PhoneNumber>13869833123</PhoneNumber>
    </CallLog>
 <CallLog>
        <Flags>2</Flags>
        <Duration>20</Duration>
        <StartTime>2019-05-10 14:46:55</StartTime>
        <ContactName></ContactName>
        <PhoneNumber>13869833456</PhoneNumber>
    </CallLog>
</CallLogs>

需要导出所有手机号

#引入parse的包
from xml.dom.minidom import parse
if __name__ == '__main__':
    doc = parse("a.xml")  # 先把xml文件加载进来
    root = doc.documentElement  # 获取元素的根节点
    books = root.getElementsByTagName('CallLog')  # 找到子节点，得到的是一个数组
    output=""
    for x in books:
        output+=x.getElementsByTagName("PhoneNumber")[0].childNodes[0].data+"\n"
    with open("out.txt",'w', encoding='utf-8')as f:
        f.write(output)
        f.close()

xml 如何获取到标签的内容呢

路径 

path=r'H:\project\android\demo\browser\app\src\main\res\values\strings.xml'

内容

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <!-- App -->
    <string name="app_name">AnGuo Browser</string>
    <resources>

解析

doc = parse(path)  # 先把xml文件加载进来
    root = doc.documentElement  # 获取元素的根节点
    sub_element_obj = root.getElementsByTagName('string')  # 找到子节点，得到的是一个数组
    output = ""
    for i in range(len(sub_element_obj)):
        stringTag=sub_element_obj[i].childNodes[0].data
        stringContent=sub_element_obj[i].getAttribute("name")
        print(stringContent)
        print(stringTag)

结果

app_name
AnGuo Browser