python学习笔记（十八）网络编程中好用的模块介绍

#1、发get请求
url = ‘http://api.python.cn/api/user/stu_info‘
data = {‘stu_name‘:‘小黑‘}  #请求数据
req = requests.get(url,params=data)  #发get请求
print(req.json())  #返回数据是字典
print(req.text)    #返回数据是string，json串

#2 、发post请求
url = ‘http://api.python.cn/api/user/login‘
data = {‘username‘:‘test‘,‘passwd‘:‘aA123456‘}  #请求数据
req = requests.post(url,data)  #发送post请求
print(req.json())
print(req.text)

#3、入参是json类型的
import random
phone=random.randint(10000000000,99999999999)
url=‘http://api.python.cn/api/user/add_stu‘
data =  {
    "name":"小1",
    "grade":"天蝎座",
    "phone":phone,
    "sex":"男",
    "age":28,
    "addr":"河南省济源市北海大道32号"
  }
req = requests.post(url,json=data)
print(req.json())

# 4、添加cookie
url = ‘http://api.python.cn/api/user/gold_add‘
data = {‘stu_id‘:468,‘gold‘:10000}
djl = {‘usertest‘:‘337ca4cc825302b3a8791ac7f9dc4bc6‘}
req = requests.post(url,data,cookies=djl)
print(req.json())

#5、添加header
url = ‘http://api.python.cn/api/user/all_stu‘
header = {
    ‘Referer‘:‘http://api.nnzhp.cn/‘
}
req = requests.get(url,headers=header)
print(req.json())

#6、上传文件
url= ‘http://api.python.cn/api/file/file_upload‘
data = {
    ‘file‘:open(r‘C:\Users\bjniuhanyang\Desktop\图\6bd9026dt935575932465&690.jpg‘,‘rb‘)
}
req= requests.post(url,files=data)
print(req.json())

#7、下载文件
url = ‘http://up.mcyt.net/?down/46779.mp3‘  #下载图片、MP3、MP4都是同样的操作，找到该资源的url即可
req = requests.get(url)
print(req.content)#返回的是二进制模式
fw = open(‘aaa.mp3‘,‘wb‘)#二进制的文件写模式是"wb",读模式是"rb"
fw.write(req.content)