pythone函数基础（13）发送网络请求

需要导入urllib模块，request模块
发送网络请求有两种方法

第一种方法
# from urllib.request import urlopen
# from urllib.parse import urlencode
#
# # url='http://127.0.0.1:8999/api/login?username=testuser1&passwd=111111'
# # res = urlopen(url).read()
# # print(res.decode())
# url='http://127.0.0.1:8999/api/login'
# data = {'username':'testuser1','passwd':'111111'}
# s = urlencode(data)
# res = urlopen(url,s.encode()) #post请求
# print(res.read().decode())
第二种方法
import requests
import random
url='http://127.0.0.1:8999/api/upload'
# data = {'username':'testuser1','passwd':'111111'}
# r = requests.get(url,params=data) #发get请求
# r = requests.post(url,data=data) #发post请求

# data = {
#  "session_id":"6ab8785039dcf50fb11c53acc1db7648",
#  "name":"zhouyongbo%s"%random.randint(1,99),
#  "phone":"111211345%02d"%random.randint(1,99),
#  "grade":"英语座"
# }
# #
# r = requests.post(url,json=data) #入参是json类型的

#上传文件的
# r = requests.post(url,
#             data={'session_id':'6ab8785039dcf50fb11c53acc1db7648'},
#             files={'file_name':open('account.xls','rb')  }
#             )

# requests.get(url,headers={'cookie':'pt2gguin=o0511402865; RK=JQZpwBp1by; ptcz=6c30e26a9ed6be93d3de9e4c4aca3e55650cf99fcffa64729bd1d58a5fb209d9; pgv_pvi=779236352; pgv_pvid=6970909788; qb_qua=; qb_guid=818de686e29d412fa4ee9e99905ea166; Q-H5-GUID=818de686e29d412fa4ee9e99905ea166; NetType=; pgv_si=s4499960832; FTN5K=0138ca95; pgv_info=ssid=s4269564370; luin=o0511402865; uin=o0511402865; lskey=00010000efc2701412d3429029ac9366e4ba98f0e978e0ae4a9c684101a7b22df0695f534bc242c8d4ff386d; skey=@0sHtvhTsD; ptisp=cnc; p_uin=o0511402865; pt4_token=wGU2YAaM0uu7LbcNjuDcLN-TPrEy7AZw4gcL5TEcKxw_; p_skey=1zg7yvF5wr6l43mfr-BvNHxuVDtybKpR5RbCrgC8weQ_'})

# requests.get(url,cookies={'pt2ggui':'o0511402865','RK':'JQZpwBp1by'})
# print(r.text) #结果返回的就是字符串
# print(r.json()) #结果返回的就是字典,必须返回的是json，才能转成字典
r.content#是用来接收图片歌曲等文件的

#下载文件、上传文件、添加header

#下载文件
# url='https://q4.qlogo.cn/g?b=qq&nk=1834364415&s=140'

# url='https://qiniuuwmp3.changba.com/1127063572.mp4'
r = requests.get(url)
 #返回的就是二进制的
r.cookies #返回cookie
r.status_code  #返回的状态码200

f = open('sdfsdf.mp4','wb')
f.write(r.content)
f.close()