requests模块初级宝典：http://docs.python-requests.org/zh_CN/latest/user/quickstart.html
requests模块之葵花宝典：http://docs.python-requests.org/zh_CN/latest/
http请求头不知道就死定了的宝典：https://jingyan.baidu.com/article/375c8e19770f0e25f2a22900.html
requests模块初级宝典：http://docs.python-requests.org/zh_CN/latest/user/quickstart.html
requests模块之葵花宝典：http://docs.python-requests.org/zh_CN/latest/
http请求头不知道就死定了的宝典：https://jingyan.baidu.com/article/375c8e19770f0e25f2a22900.html