示例网站：

http://exercise.kingname.info/exercise_requests_get.html

​​​​​​GET 测试 (kingname.info)http://exercise.kingname.info/exercise_requests_get.html

import requests

html = requests.get('http://exercise.kingname.info/exercise_requests_get.html').content.decode()
print(html)

post方法的简单使用；

使用get方法访问post网页时的报错

import requests

html = requests.get('http://exercise.kingname.info/exercise_requests_post').content.decode()
print(html)

改用post方法来对网页进行访问

mport requests
import re
data = {'name':'liyong','password':'li123'}
html = requests.post('http://exercise.kingname.info/exercise_requests_post',data=data).content.decode()
html_data = re.finall()
print(html)

 

改为json格式提交数据

import requests
import re
data = {'name':'liyong','password':'li123'}
html = requests.post('http://exercise.kingname.info/exercise_requests_post',json=data).content.decode()
#html_data = re.finall()
print(html)

使用正则表达式提取数据

import requests
import re
data = {'name':'liyong','password':'li123'}
html = requests.post('http://exercise.kingname.info/exercise_requests_post',json=data).content.decode()
html_title = re.findall('title>(.*?)<',html,re.S)
html_data = re.findall('p>(.*?)<',html,re.S)
content = '\n'.join(html_data)
print("title is :",html_title)
print("data is :",content)
#print(html)