URL提交是百度提供的一個站長工具，用于給站長提供手工收錄某些URL的接口，但是該接口有驗證碼識別部分，比較難弄。所以編寫了如下程序進行驗證碼自動識別：
主要思路
獲取多個驗證碼，提交到 http://lab.ocrking.com/ 進行多次識別，然后計算每個驗證碼圖片識別出來的 字母或數字 進行統計，得出統計率最高的 即為驗證碼。
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import requests
import time
import json
import re
?
?
if __name__ == "__main__":
??? i = 1
??? s = requests.session()
??? s.headers.update({'Referer':'http://zhanzhang.baidu.com/sitesubmit/index','User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36'})
??? r = s.get('http://zhanzhang.baidu.com/sitesubmit/index')
??? s2 = requests.session()
??? r = s.post('http://zhanzhang.baidu.com/captcha',data={'async':'false','n':time.time()})
??? url = json.loads(r.content)['url']
??? temp = []
??? while 1:
??????? try:
??????????? r = s.get(url)
??????????? img_data = r.content
??????????? r = s2.get('http://lab.ocrking.com/')
??????????? try:
??????????????? content = ' '.join(r.content.split())
??????????????? sid =? re.findall(r'"sid" : "(.+?)"',content)[0]
??????????????? hash_1 = re.findall(r'"hash" : "(.+?)"',content)[0]
??????????????? timestamp = re.findall(r'"timestamp" : "(.+?)"',content)[0]
??????????? except:
??????????????? print 'error on get orking info!'
??????????????? continue
??????????? files = {'Filedata':('icode.jpeg', img_data)}
??????????? data? = {'Filename':'icode.jpeg','sid':sid,'hash':hash_1,'timestamp':timestamp}
??????????? r = s2.post('http://lab.ocrking.com/upload.html',files = files,data= data)
??????????? r = s2.post('http://lab.ocrking.com/ocrking.html',data={'upfile':r.content,'type':'captcha','charset':'7'})
??????????? icode = re.findall(r'
??????????? if len(icode) != 4 :
??????????????? continue
??????????? temp.append(icode)
??????????? i = i + 1
??????????? if i == 3 :
??????????????? break
??????? except Exception,e:
??????????? print e
??????????? pass
?
??? a = {'0':{},'1':{},'2':{},'3':{}}
??? for aa in temp:
??????? i = 0
??????? while i <=3 :
??????????? try:
??????????????? a[str(i)][aa[i]] =? a[str(i)][aa[i]] + 1
??????????? except:
??????????????? a[str(i)][aa[i]] = 1
??????????? i = i + 1
??? icode = ['','','','']
??? for index in a:
??????? temp_times = 0
??????? for index_1 in a[index]:
??????????? if a[index][index_1] >= temp_times :
??????????????? temp_times = a[index][index_1]
??????????????? icode[int(index)] = index_1
?
??? icode =? ''.join(icode)
?
??? img_name = 'temp\\'+icode+'.png'
??? file_object = open(img_name, 'w')
??? file_object.write(img_data)
??? file_object.close()
?
?
?
??? #r = s.post('http://zhanzhang.baidu.com/sitesubmit/sitepost',data={'url':'http://lab.ocrking.com/','captcha':icode})
?
??? #print r.content
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