python urllib 基础 5

ajax的post请求

import  urllib.request
import urllib.parse

# url = 'https://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cname'
#
# headers = {
#     'user-agent':"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36"
# }

#定制请求
def create_request(page):
    url = 'https://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cname'
    headers = {
        'user-agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36"
    }
    data = {
        'cname': "北京",
        'pid': '',
        'pageIndex': page,
        'pageSize': 10
    }
    new_data = urllib.parse.urlencode(data).encode('utf-8')
    request = urllib.request.Request(url=url,data=new_data,headers=headers)
    return request
def get_response(request_data):
    reponse = urllib.request.urlopen(request_data)
    context = reponse.read().decode('utf-8')
    return context
def download(page,context):
    with open('kfc'+ str(page) + '.json','w',encoding='utf-8') as pf:
        pf.write(context)

if __name__ == '__main__':
    start_page = int(input('请输入起始页码'))
    end_page = int(input('请输入结束页码'))

    page: int
    for page in range(start_page,end_page+1):
# 定制请求
         request_data = create_request(page)
# 获取响应数据
         context = get_response(request_data)
# 下载数据
         download(page,context)