首先下载一个斗鱼（不下载也可以，url都在这了对吧）

 　　通过抓包，抓取到一个json的数据包，得到下面的地址

 

　　观察测试可知，通过修改offset值就是相当于app的翻页

　　访问这个url，返回得到的是一个大字典，字典里面两个索引，一个error，一个data。而data又是一个长度为20的数组，每个数组又是一个字典。每个字典中又有一个索引，vertical_src。

　　我们的目标就是它了！

1 import urllib.parse 2 import urllib 3 import json 4 import urllib.request 5 data_info={} 6 data_info['type']='AUTO' 7 data_info['doctype']='json' 8 data_info['xmlVersion']='1.6' 9 data_info['ue']='UTF-8'10 data_info['typoResult']='true'11 head_info={}12 head_info['User-Agent']='DYZB/2.271 (iphone; iOS 9.3.2; Scale/3.00)'13 url='http://capi.douyucdn.cn/api/v1/getVerticalRoom?aid=ios&client_sys=ios&limit=20&offset=20'14 data_info=urllib.parse.urlencode(data_info).encode('utf-8')15 print(data_info)16 requ=urllib.request.Request(url,data_info)17 requ.add_header('Referer','http://capi.douyucdn.cn')18 requ.add_header('User-Agent','DYZB/2.271 (iphone; iOS 9.3.2; Scale/3.00)')19 response=urllib.request.urlopen(requ)20 print(response)21 html=response.read().decode('utf-8')

这短短20多行代码就能返回得到json数据了。然后再通过对这json代码的切片，分离得到每个主播照片的url地址。

然后得到这一页的照片

1 import json 2 import urllib.request 3 data_info={} 4 data_info['type']='AUTO' 5 data_info['doctype']='json' 6 data_info['xmlVersion']='1.6' 7 data_info['ue']='UTF-8' 8 data_info['typoResult']='true' 9 1011 url+str(i)='http://capi.douyucdn.cn/api/v1/getVerticalRoom?aid=ios&client_sys=ios&limit=20&offset='+str(x)12 data_info=urllib.parse.urlencode(data_info).encode('utf-8')13 print(data_info)14 requ=urllib.request.Request(url,data_info)15 requ.add_header('Referer','http://capi.douyucdn.cn')16 requ.add_header('User-Agent','DYZB/2.271 (iphone; iOS 9.3.2; Scale/3.00)')17 response=urllib.request.urlopen(requ)18 print(response)19 html=response.read().decode('utf-8')20 '''21  print(type(dictionary))22 print(type(dictionary[data]))23 '''24 dictionary=json.loads(html)25 data_arr=dictionary["data"]26 for i in range(0,19):27     name=data_arr[i]["nickname"]28     img_url=data_arr[i]["vertical_src"]29     print(type(img_url))30     respon_tem=urllib.request.urlopen(img_url)31     anchor_img=respon_tem.read()32     with open('../photos/'+name+'.jpg','wb') as f:33         f.write(anchor_img)

然后修改一下，让它有了翻页的功能

1 import urllib.parse 2 import urllib 3 import json 4 import urllib.request 5 data_info={} 6 data_info['type']='AUTO' 7 data_info['doctype']='json' 8 data_info['xmlVersion']='1.6' 9 data_info['ue']='UTF-8'10 data_info['typoResult']='true'11 data_info=urllib.parse.urlencode(data_info).encode('utf-8')12 13 for x in range(0,195):14     url='http://capi.douyucdn.cn/api/v1/getVerticalRoom?aid=ios&client_sys=ios&limit=20&offset='+str(x)15     print(data_info)16     requ=urllib.request.Request(url,data_info)17     requ.add_header('Referer','http://capi.douyucdn.cn')18     requ.add_header('User-Agent','DYZB/2.271 (iphone; iOS 9.3.2; Scale/3.00)')19     response=urllib.request.urlopen(requ)20     print(response)21     html=response.read().decode('utf-8')22     dictionary=json.loads(html)23     data_arr=dictionary["data"]24     for i in range(0,19):25         name=data_arr[i]["nickname"]26         img_url=data_arr[i]["vertical_src"]27         print(type(img_url))28         respon_tem=urllib.request.urlopen(img_url)29         anchor_img=respon_tem.read()30         with open('../photos/'+name+'.jpg','wb') as f:31             f.write(anchor_img)

然后就等着吧~~

最好设置一下时间，每隔多久爬一次，或者每隔多久更换一次ip。就行了