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  • Py爬虫项目

    爬取内涵段子:
    #
    encoding=utf-8 import urllib2 import re class neihanba(): def spider(self): ''' 爬虫的主调度器 ''' isflow=True#判断是否进行下一页 page=1 while isflow: url="http://www.neihanpa.com/article/list_5_"+str(page)+".html" html=self.load(url) self.deal(html,page) panduan=raw_input("是否继续(y/n)!") if panduan=="y": isflow=True page+=1 else: isflow=False def load(self,url): ''' 针对url地址进行全部爬去 :param url: url地址 :return: 返回爬去的内容 ''' header = { "User-Agent": " Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36" } request = urllib2.Request(url, headers=header) response = urllib2.urlopen(request) html = response.read() return html def deal(self,html,page): ''' 对之前爬去的内容进行正则匹配,匹配出标题和正文内容 :param html:之前爬去的内容 :param page: 正在爬去的页码 ''' parrten=re.compile('<li class="piclistd+">(.*?)</li>',re.S) titleList=parrten.findall(html) for title in titleList: parrten1=re.compile('<a href="/article/d+.html">(.*)</a>') ti1=parrten1.findall(title) parrten2=re.compile('<div class="f18 mb20">(.*?)</div>',re.S) til2=parrten2.findall(title) for t in ti1: tr=t.replace("<b>","").replace("</b>","") self.writeData(tr,page) for t in til2: tr=t.replace("<p>","").replace("</p>","").replace("<br>","").replace("<br />","").replace("&ldquo",""").replace("&rdquo",""") self.writeData(tr,page) def writeData(self,context,page): ''' 将最终爬去的内容写入文件中 :param context: 匹配好的内容 :param page: 当前爬去的页码数 ''' fileName = "di" + str(page) + "yehtml.txt" with open(fileName, "a") as file: file.writelines(context + " ") if __name__ == '__main__': n=neihanba() n.spider()

    爬取智联:

    #encoding=utf-8
    import urllib
    import urllib2
    
    import re
    
    
    class zhiLian():
        def spider(self,position,workPlace):
            '''
            爬虫的主调度器
            :param position: 职位
            :param workPlace: 工作地点
            '''
            url="http://sou.zhaopin.com/jobs/searchresult.ashx?"
            url+=urllib.urlencode({"jl":workPlace})
            url+="&"
            url+=urllib.urlencode({"kw":position})
            isflow=True#是否进行下一页的爬去
            page=1
            while isflow:
                url+="&"+str(page)
                html=self.load(url)
                self.deal1(html,page)
                panduan = raw_input("是否继续爬虫下一页(y/n)!")
                if panduan == "y":
                    isflow = True
                    page += 1
                else:
                    isflow = False
        def load(self,url):
            '''
            针对url地址进行全部爬去
            :param url: url地址
            :return: 返回爬去的内容
            '''
            header = {
                "User-Agent": " Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36"
            }
            request = urllib2.Request(url, headers=header)
            response = urllib2.urlopen(request)
            html = response.read()
            return html
        def deal1(self,html,page):
            '''
    
            对之前爬去的内容进行正则匹配,匹配职位所对应的链接
            :param html:之前爬去的内容
            :param page: 正在爬去的页码
            '''
            parrten=re.compile('<as+style="font-weight:s+bold"s+par="ssidkey=y&amp;ss=d+&amp;ff=d+&amp;sg=w+&amp;so=d+"s+href="(.*?)" target="_blank">.*?</a>',re.S)
            til=parrten.findall(html)#爬去链接
            for t in til:
                self.deal2(t,page)
        def deal2(self,t,page):
            '''
            进行二次爬虫,然后在新的页面中对公司、薪资、工作经验进行匹配
            :param t: url地址
            :param page: 当前匹配的页数
            '''
            html=self.load(t)#返回二次爬虫的内容
            parrten1=re.compile('<as+onclick=".*?"s+href=".*?"s+target="_blank">(.*?)s+.*?<imgs+class=".*?"s+src=".*?"s+border="d+"s+vinfo=".*?"></a>',re.S)
            parrten2=re.compile('<li><span>职位月薪:</span><strong>(.*?)&nbsp;<a.*?>.*?</a></strong></li>',re.S)
            parrent3=re.compile('<li><span>工作经验:</span><strong>(.*?)</strong></li>',re.S)
            til1=parrten1.findall(html)
            til2=parrten2.findall(html)
            til3=parrent3.findall(html)
            str=""
            for t in til1:
                t=t.replace('<img title="专属页面" src="//img03.zhaopin.cn/2012/img/jobs/icon.png" border="0" />',"")
                str+=t
                str+="	"
            for t in til2:
                str+=t
                str += "	"
            for t in til3:
                str+=t
            self.writeData(str,page)
        def writeData(self,context,page):
            '''
            将最终爬去的内容写入文件中
            :param context: 匹配好的内容
             :param page: 当前爬去的页码数
            '''
            fileName = "di" + str(page) + "yehtml.txt"
            with open(fileName, "a") as file:
                file.writelines(context + "
    ")
    if __name__ == '__main__':
        position=raw_input("请输入职位:")
        workPlace=raw_input("请输入工作地点:")
        z=zhiLian()
        z.spider(position,workPlace)

    爬取贴吧:

    #encoding=utf-8
    import urllib
    import urllib2
    
    import re
    
    
    class teiba():
        def spider(self,name,startPage,endPage):
            url="http://tieba.baidu.com/f?ie=utf-8&"
            url+=urllib.urlencode({"kw":name})
            for page in range(startPage,endPage+1):
                pn=50*(page-1)
                urlFull=url+"&"+urllib.urlencode({"pn":pn})
                html=self.loadPage(url)
                self.dealPage(html,page)
    
        def loadPage(self,url):
            header={
                "User-Agent":" Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36"
            }
            request=urllib2.Request(url,headers=header)
            response=urllib2.urlopen(request)
            html=response.read()
            return html
        def dealPage(self,html,page):
            partten=re.compile(r'<as+rel="noreferrer"s+href="/p/d+"s+title=".*?"s+target="_blank" class="j_th_tits+">(.*?)</a>',re.S)
            titleList=partten.findall(html)
            rstr=r'<spans+class="topic-tag"s+data-name=".*?">#(.*?)#</span>'
            for title in titleList:
                title=re.sub(rstr,"",title)
                self.writePage(title,page)
        def writePage(self,context,page):
            fileName="di"+str(page)+"yehtml.txt"
            with open(fileName,"a") as file:
                file.writelines(context+"
    ")
    if __name__ == '__main__':
        name=raw_input("请输入贴吧名:")
        startPage=raw_input("请输入起始页:")
        endPage=raw_input("请输入终止页:")
        t=teiba()
        t.spider(name,int(startPage),int(endPage))
    大多数想法要么平庸,要么更糟糕,这很大程度上因为绝妙的想法难得一见,而且他们还要在我们身边这个充斥了各种恶俗的所谓常识的环境中孕育生长。
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  • 原文地址:https://www.cnblogs.com/linux0537/p/9193276.html
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