这篇博客对于考公人或者其他用华图或者粉笔做题的人比较友好，通过输入网址可以自动化获取华图以及粉笔练习的错题。
粉笔网站
我们从做过的题目组中获取错题
我们发现现在数据已经被隐藏，事实上数据在这两个包中：
https://tiku.fenbi.com/api/xingce/questions
https://tiku.fenbi.com/api/xingce/solutions
一个为题目的一个为解析的。此url要通过传入一个题目组参数才能获取到当前题目数据，而题目组参数在这个包中
以网址的倒数第二个数字串有关
url的规则为'https://tiku.fenbi.com/api/xingce/exercises/'+str(id_)+'?app=web&kav=12&version=3.0.0.0'，id_即为下划线数字
通过请求这个包获取到参数然后通过参数请求上面两个包（
https://tiku.fenbi.com/api/xingce/questions https://tiku.fenbi.com/api/xingce/solutions
）即可获取到题目数据，而且自己的答案在也在https://tiku.fenbi.com/api/xingce/exercises/'+str(id_)+'?app=web&kav=12&version=3.0.0.0这个包中。
不过粉笔的题目数据有些是图片，而且图片在题目中，选项中，这里以word文档存储操作docx库有些吃力，于是我想到了直接构造HTML代码，然后通过pdfkit转为pdf（具体如何下载可以参考百度，要下载wkhtmltopdf.exe）即可变为错题集在平板或者其他设备中看。
（请求时一定要携带完整的headers，否则很可能获取不到数据）
具体操作看代码解析
###此函数用于解析题目和每道题的答案
def jiexi(liebiao):
new = []
timu_last = []
for each in liebiao:
new.append(re.sub(r'flag=\\"tex\\" ','',each))
for each in new:
timu_last.append(re.sub(r'\\','',each))
return timu_last
###此函数用于解析选项
def xuanxiang(liebiao):
xuanxiang_v2 = []
xuanxiang_v3 = []
for each in liebiao:
a = re.sub('<p>','',each)
a = re.sub('</p>','',a)
xuanxiang_v2.append(a)
for each in xuanxiang_v2:
each = each+'</p>'
xuanxiang_v3.append(each)
return xuanxiang_v3
import requests
import re
import pdfkit
import os
url = str(input("请输入练习的网址："))
###获取本节练习id
id_ = re.findall(r'https://www.fenbi.com/spa/tiku.*?/xingce/xingce/(.*?)/',url,re.S)[0]
mid_url = 'https://tiku.fenbi.com/api/xingce/exercises/'+str(id_)+'?app=web&kav=12&version=3.0.0.0'
headers = {
#####完整的headers，自己添加
}
response = requests.get(url=mid_url,headers=headers)
response.encoding = 'utf-8'
page_text = response.text
###获取题目组参数
id_list = re.findall('\"questionIds\"\:\[(.*?)\]\,',page_text,re.S)
###获取自己的答案
your_answer = re.findall(r'"answer":{"choice":"(.*?)",',page_text,re.S)
###此练习名称
name = re.findall(r'"name":"(.*?)",',page_text,re.S)[0]
###真正存储数据的包
timu_url = 'https://tiku.fenbi.com/api/xingce/questions'
params = {
'ids': id_list
}
response = requests.get(url=timu_url,headers=headers,params=params)
response.encoding = 'utf-8'
page_text = response.text
###获取正确答案
true_answer = re.findall('"correctAnswer":{"choice":"(.*?)"',page_text,re.S)
###真正存储数据的包
solution_url = 'https://tiku.fenbi.com/api/xingce/solutions'
response = requests.get(url=solution_url,headers=headers,params=params)
response.encoding = 'utf-8'
page_text = response.text
###获取解析
solution_list = re.findall(r'"solution":"(.*?)","userAnswer"',page_text,re.S)
solution_last = jiexi(solution_list)
cailiao = []
timu = []
###获取单选题题目和复合题的题目
for each in response.json():
timu.append(each['content'])
try:
cailiao.append(each['material']['content'])
except:
cailiao.append('none')
###获取选项信息
A_option = re.findall('\"options\"\:\[\"(.*?)\"\,\".*?\"\,\".*?\"\,\".*?\"\]',page_text,re.S)
B_option = re.findall('\"options\"\:\[\".*?\"\,\"(.*?)\"\,\".*?\"\,\".*?\"\]',page_text,re.S)
C_option = re.findall('\"options\"\:\[\".*?\"\,\".*?\"\,\"(.*?)\"\,\".*?\"\]',page_text,re.S)
D_option = re.findall('\"options\"\:\[\".*?\"\,\".*?\"\,\".*?\"\,\"(.*?)\"\]',page_text,re.S)
A_option = xuanxiang(A_option)
B_option = xuanxiang(B_option)
C_option = xuanxiang(C_option)
D_option = xuanxiang(D_option)
A_option = jiexi(A_option)
B_option = jiexi(B_option)
C_option = jiexi(C_option)
D_option = jiexi(D_option)
###构造HTML代码
count = 0
all_content = "<!DOCTYPE html>\n<meta charset='utf-8'>\n<html>"
for each in true_answer:
if each != your_answer[count]:
###处理复合题
if cailiao[count] != 'none' and cailiao[count] not in all_content:
all_content += cailiao[count]
all_content += str(count+1)
all_content += '、'
all_content += timu[count][3:]
all_content += 'A、'
all_content += A_option[count]
all_content += 'B、'
all_content += B_option[count]
all_content += 'C、'
all_content += C_option[count]
all_conte<mark>本文来源gaodaimacom搞#^代%!码&网(</mark>nt += 'D、'
all_content += D_option[count]
all_content += '<br>'
count += 1
count = 0
all_content += '<br><br><br><br><br><br><br><br><br>'
for each in true_answer:
if each != your_answer[count]:
temp = '第'+str(count+1)+'题的正确答案为'
all_content += temp
if true_answer[count]=='0':
all_content += 'A'
elif true_answer[count]=='1':
all_content += 'B'
elif true_answer[count]=='2':
all_content += 'C'
elif true_answer[count]=='3':
all_content += 'D'
all_content += solution_last[count]
all_content += '<br>'
count += 1
all_content += '</html>'
path_name = name + '.html'
###保存为HTML文件
with open(path_name,'w',encoding='utf-8') as fp:
fp.write(all_content)
confg = pdfkit.configuration(wkhtmltopdf=r'wkhtmltopdf.exe保存的路径')
pdfkit.from_url(path_name, name+'.pdf',configuration=confg)###把HTML文件转为pdf
print('错题PDF保存成功')
###删除HTML文件
os.remove(path_name)
华图网站
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转载请注明原文链接：Python爬虫自动化获取华图和粉笔网站的错题(推荐)
转载请注明原文链接：Python爬虫自动化获取华图和粉笔网站的错题(推荐)
