爬虫苦训第一天，我的第一个爬虫！！！

'''
经历千辛万苦终于写成了自己的第一个爬虫，哇咔咔！
抓取糗事段子里面的段子，循环抓取多页
'''
import urllib.request
import ssl
import re
import pickle

weburl = "https://www.douban.com/"

#设置请求头
headers = {
         'Accept': 'text/html, application/xhtml+xml, */*',
         # 'Accept-Encoding': 'gzip, deflate',
         'Accept-Language': 'zh-CN',
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) '
                  'Chrome/63.0.3239.26 Safari/537.36 Core/1.63.6756.400 QQBrowser/10.3.2545.400',
             'DNT': '1',
         'Connection': 'Keep-Alive',
         'Host': 'www.qiushibaike.com'
    }
def jokeCrawker(url):
　　#创建为经过验证的上下文
    context = ssl._create_unverified_context()
    req = urllib.request.Request(url=url, headers=headers)
    response = urllib.request.urlopen(req, context=context)
    #data = str(response.read())
    data = response.read().decode("utf-8")

　　 #. 不能匹配'\n'，compole(pat, re.S)，此处耽误了好久，无语了
    pat = '<div class="author clearfix">(.*?)<span class="stats-vote"><i class="number">'
    re_joke = re.compile(pat, re.S)
    jokeList = re_joke.findall(data)

    jokeDict = {}
    for div in jokeList:
        #name,名称
        pat = r'<h2>(.*?)</h2>'
        re_n = re.compile(pat, re.S)
        name = re_n.findall(div)[0]

        #words，说的段子
        pat = '<div class="content">\n<span>(.*?)</span>'
        re_w = re.compile(pat, re.S)
        words = re_w.findall(div)[0]

        #处理多个换行，<br/>,非(数字，字母，下划线，中文，以及中文标点符号)
        pat = '\\n{2,}|<br/>|[^\d\u4e00-\u9fa5(\u3002|\uff1f|\uff01|\uff0c|\u3001|' \
              '\uff1b|\uff1a|\u201c|\u201d|\u2018|\u2019|\uff08|\uff09|\u300a|' \
              '\u300b|\u3008|\u3009|\u3010|\u3011|\u300e|\u300f|\u300c|\u300d|' \
              '\ufe43|\ufe44|\u3014|\u3015|\u2026|\u2014|\uff5e|\ufe4f|\uffe5)*]'
        word = re.sub(pat, '', words)
        
        jokeDict[name] = word
    with open("F:/糗事段子/file/qiushi.txt", "a+") as fp:
        #还能同一存储到一个dict判断重复，然后在同一写入，就可以用'w',不过太占内存了
        #以后还能索引，看是否覆盖(短时间内不会)
        for k, v in jokeDict.items():
            info = str(k + "说：" + v + "\n")
            fp.write(info)
    return True
for i in range(10):
    webur2 = "https://www.qiushibaike.com/text/page/" + str(i) + "/"
    jokeCrawker(webur2)