#！/usr/bin/env python

 # -*- coding:utf-8 -*-

 import requests

 from xml.etree import ElementTree as ET

 # 一、 查看腾讯QQ在线情况

 '''

 resonse = requests.get('http://www.webxml.com.cn/webservices/qqOnlineWebService.asmx/qqCheckOnline?qqCode=1646165131516')

 resonse.encoding='utf-8'

 r = resonse.text

 node = ET.XML(r)

 print(node.text)

 '''

 # 二、查询火车时刻表

 r = requests.get('http://www.webxml.com.cn/WebServices/TrainTimeWebService.asmx/getDetailInfoByTrainCode?TrainCode=G199&UserID=')

 result = r.text

 # 获取XML格式的内容

 root = ET.XML(result)

 for node in root.iter('TrainDetailInfo'):

     # print(node.tag,node.attrib)

     print(node.find('TrainStation').text,node.find('StartTime').text,node.find('KM').text)

 from xml.etree import ElementTree as ET

 # 解析XML文件

 tree = ET.parse('first.xml')

 # 获取顶端节点

 root = tree.getroot()

 for node in root.iter('KM'):

     # 更新节点内容

     new_km = int(node.text)+1

     node.text = str(new_km)

     # 设置节点属性

     node.set('name','sb')

     node.set('heh','hha')

     # 删除节点属性

     del node.attrib['name']

     print(node.text)

 # 保存到源文件

 tree.write('first.xml')