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answer_page_spider.py
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# !/usr/bin/env python
# -*- coding:utf-8 -*-
# author；鸿
from selenium.webdriver import Chrome
from lxml.etree import HTML
import time
from retrying import retry
def go_back():
web.find_element_by_xpath('//*[@class="parents"]').click()
def write(string):
with open('离散数学测试题.txt', 'a', encoding='utf-8')as f:
f.write(string)
def write_html(title,string):
with open('{}.html'.format(title), 'a', encoding='utf-8')as f:
f.write(string)
def get_math(URL):
web1 = Chrome(executable_path='E:\Google\Chrome\Application\chromedriver.exe')
web1.get(URL)
Maths = HTML(web1.page_source).xpath('//*[@font-family]')
Math = ''.join([Math.xpath('string()') for Math in Maths])
web1.close()
return Math
@retry(stop_max_attempt_number=2, wait_random_min=1000, wait_random_max=2000)
def go_back(web):
web.find_element_by_xpath('//*[@class="parents"]').click()
def get_QUIZ_data(web):
html = HTML(web.page_source)
title = html.xpath('//*[@id="interaction-title-box"]/div[1]/div[1]/@title')[0]
write(title+'\n\n')
write_html(title,web.page_source)
#############问题
questions = html.xpath('//*[@class="row-center"]')
for i in range(1,len(questions)+1):
# print(str(i),'ti')
flag = 0
question_s = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[1]/div/div[3]/pre/text()'.format(i))#[0].xpath('string()')
# print(len(question_s))
if len(question_s)>1 or len(question_s)==0:
URL = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[1]/div/div[3]/pre/span/img/@src'.format(i))
if URL == []:
Math = ''
else:
Math = get_math(str(URL[0]))
if len(question_s)!=0:
question = str(Math).join(question_s)
else:
flag = 1
question = str(Math)
else:
if flag==0:
question = question_s[0]
try:
src = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[1]/div/div[3]/pre/img/@src'.format(i))[0]
question = question +'\n'+ src
except:
pass
# print(str(i)+'.'+question)
write(str(i)+'.'+question+'\n')
#############选项
opts = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[.]'.format(i))
for j in range(1,len(opts)+1):
count = 0
opt = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[{}]'.format(i,j))[0].xpath('string()').replace('\n','').replace(' ','')
try:
opt_list = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[{}]/span/span'.format(i,j))
count = 1
if len(opt_list)>1:
try:
URL = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[{}]/span/span[{}]/img/@src'.format(i,j,len(opt_list)))[0]
opt_plus = get_math(str(URL))
except:
print(title+'第{}题{}号选项出现错误'.format(i,j))
else:
URL = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[{}]/span/span/img/@src'.format(i,j))[0]
opt_plus = get_math(str(URL))
except:
count = 0
if count == 1:
opt = opt + opt_plus
try:
src = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[{}]/span[3]/img/@src'.format(i,j))[0]
opt = opt + src
except:
pass
write(opt+'\n')
#############正确答案
answer = html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[2]/div[1]/div[1]'.format(i))[0].xpath('string()').replace('\n','').replace(' ','')
write(answer+'\n\n')
print(title,'页面爬取成功...')
# except:
# pass
def main1(web,uersname,password):
uers = web.find_element_by_xpath('//*[@name="account_name"]')
uers.send_keys('{}'.format(uersname))
time.sleep(1)
pd = web.find_element_by_xpath('//*[@name="user_password"]')
pd.send_keys('{}'.format(password))
time.sleep(1)
login = web.find_element_by_xpath('//*[@id="login-button-1"]')
login.click()
time.sleep(1)
Discretemathematics = web.find_element_by_xpath('//*[@title="离散数学"]')
Discretemathematics.click()
# try:
r = str(input('是否助教(y|n):'))
if r=='y':
button = web.find_element_by_xpath('//*[@class="button-routine button-sure select-role-student"]')
time.sleep(1)
button.click()
bu = web.find_elements_by_xpath('//*[@class="group-name color-33"]')
for b in range(1,len(bu)):
time.sleep(1)
bu[b].click()
QUIZ = web.find_elements_by_xpath('//*[@data-type="QUIZ"]')
for a in range(0,len(QUIZ)):
QUIZ[a].click()
time.sleep(1)
html = HTML(web.page_source)
try:
begin_test = html.xpath('//*[@class="button-routine"]')[0].xpath('string()')
except:
begin_test = ''
if begin_test =='开始测试':
time.sleep(1)
go_back(web)
else:
get_QUIZ_data(web)
go_back(web)
QUIZ = web.find_elements_by_xpath('//*[@data-type="QUIZ"]')
def main2(web,uersname,password):
uers = web.find_element_by_xpath('//*[@name="account_name"]')
uers.send_keys('{}'.format(uersname))
time.sleep(1)
passwords = web.find_element_by_xpath('//*[@name="user_password"]')
passwords.send_keys('{}'.format(password))
time.sleep(1)
login = web.find_element_by_xpath('//*[@id="login-button-1"]')
login.click()
time.sleep(1)
datastruct = web.find_element_by_xpath('//*[@id="main"]/main/section[2]/div[3]/ul/li[1]/div[1]/img')
datastruct.click()
time.sleep(1)
html = web.page_source
html = HTML(html)
test = html.xpath('//*[@data-type="QUIZ"]/@data-url')
f = open('数据结构测试题.txt', 'a', encoding='utf-8')
for count in range(len(test)):
url = test[count]
if 'https://' in url:
web.get(url)
Key = web.find_element_by_xpath('//*[@id="member-list-box"]/div[1]/div[2]/a[1]')
Key.click()
question_html = web.page_source
question_html = HTML(question_html)
titles = question_html.xpath('//*[@id="interaction-title-box"]/div[1]/div[1]')[0].xpath('string()')
###问题选项以及正确答案
# print(title,'\n')
write_html(titles,web.page_source)
title = titles + '\n\n'
f.write(title)
ques_list = question_html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[.]/div[1]/div/div[1]/div/div[3]/pre')
i = 1
for ques_s in ques_list:
ques = ques_s.xpath('string()')
opt = question_html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[.]'.format(i))
question = str(i) + '.' + ques_list[i - 1].xpath('string()') + '\n'
# print(question)
f.write(question)
for j in range(1, len(opt) + 1):
opt = question_html.xpath(
'//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[1]/div/div[3]/div[{}]/span[3]'.format(i, j))[0]
opt = opt.xpath('string()').replace('\n', '')
# print(opt)
opt = opt + '\n'
f.write(opt)
answer = question_html.xpath('//*[@id="cc-main"]/div[2]/div[4]/div[{}]/div[2]/div[1]/div[1]'.format(i))[
0].xpath('string()')
answer = answer.replace(' ', '').replace('\n', '')
# print(answer,'\n')
answer = answer + '\n\n'
f.write(answer)
i += 1
print(titles+'页面爬取成功...')
f.close()
if __name__ == '__main__':
print('1:数据结构')
print('2.离散数学')
result = str(input('请选择需要爬取的课程：'))
username = str(input("username:"))
password = str(input("password:"))
web = Chrome()#executable_path='E:\Google\Chrome\Application\chromedriver.exe'路径自己添加下
time.sleep(1)
web.get('https://www.mosoteach.cn/web/')
time.sleep(1)
if result=='1':
main2(web,username,password)
elif result=='2':
main1(web,username,password)
web.close()