python怎么安装requests库

pip install requests

import requests

response = requests.get('http://www.baidu.com')
print(response.status_code)  # 打印状态码
print(response.url)          # 打印请求url
print(response.headers)      # 打印头信息
print(response.cookies)      # 打印cookie信息print(response.text)  #以文本形式打印网页源码
print(response.content) #以字节流形式打印

import requests

requests.get('http://httpbin.org/get')
requests.post('http://httpbin.org/post')
requests.put('http://httpbin.org/put')
requests.delete('http://httpbin.org/delete')
requests.head('http://httpbin.org/get')
requests.options('http://httpbin.org/get')

import requests

response = requests.get('http://httpbin.org/get')print(response.text)

import requests

response = requests.get(http://httpbin.org/get?name=gemey&age=22)print(response.text)

import requests

response = requests.get('http://httpbin.org/get')
print(response.text)
print(response.json())  #response.json()方法同json.loads(response.text)
print(type(response.json()))