第三方requests模块

requests模块

requests:

　　　　　将python编译器当做浏览器使用，可以访问网站，并且接受返回的数据（字符串）

 1 import requests
 2 import json
 3
 4 # 发送http请求
 5 response = requests.get("http://www.weather.com.cn/adat/sk/101010500.html")
 6 response.encoding = ‘utf-8‘
 7 result = response.text
 8 print(type(result), result)
 9
10 # <class ‘str‘> {"weatherinfo":{"city":"怀柔","cityid":"101010500","temp":"9","WD":"南风",
11 # "WS":"1级","SD":"29%","WSE":"1","time":"10:25","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB",
12 # "njd":"暂无实况","qy":"1007"}}
13
14
15 dic = json.loads(result)
16 print(type(dic), dic)
17
18 # <class ‘dict‘> {‘weatherinfo‘: {‘city‘: ‘怀柔‘, ‘cityid‘: ‘101010500‘, ‘temp‘: ‘9‘, ‘WD‘: ‘南风‘,
19 # ‘WS‘: ‘1级‘, ‘SD‘: ‘29%‘, ‘WSE‘: ‘1‘, ‘time‘: ‘10:25‘, ‘isRadar‘: ‘1‘, ‘Radar‘: ‘JC_RADAR_AZ9010_JB‘,
20 # ‘njd‘: ‘暂无实况‘, ‘qy‘: ‘1007‘}}

1.检查QQ在线情况

 1 import requests
 2
 3 # 使用第三方模块requests发送HTTP请求，或者XML格式内容
 4 r = requests.get(‘http://www.webxml.com.cn//webservices/qqOnlineWebService.asmx/qqCheckOnline?qqCode=123456789‘)
 5 result = r.text  #xml的字符串类型
 6
 7
 8 from xml.etree import ElementTree as ET
 9
10 # 解析XML格式内容
11 node = ET.XML(result)  #XML接收一个字符串，格式化为特殊的对象
12 print(node)
13
14 # 获取内容
15 if node.text == "Y":   #特殊的对象可以访问自己各个节点的信息
16     print("在线")
17 else:
18     print("离线")

2.火车站点详情

 1 import requests
 2
 3 from xml.etree import ElementTree as ET
 4
 5 # 使用第三方模块requests发送HTTP请求，或者XML格式内容
 6 r = requests.get(
 7     ‘http://www.webxml.com.cn/WebServices/TrainTimeWebService.asmx/getDetailInfoByTrainCode?TrainCode=G666&UserID=‘)
 8 result = r.text
 9
10 # 解析XML格式内容,把字符串解析成XML
11 root = ET.XML(result)
12
13 print(root.tag)
14 for node in root:
15     print(node)
16     for node_node in node:
17         print(node_node)
18         for node_node_node in node_node:
19             print(node_node_node)