第一个python爬虫程序

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import urllib2
import time
import bs4

‘‘‘ing.cnblogs.com爬虫类‘‘‘
class CnBlogsSpider:

    url = "https://ing.cnblogs.com/ajax/ing/GetIngList?IngListType=All&PageIndex=${pageNo}&PageSize=30&Tag=&_="

    #获取html
    def getHtml(self):
        request = urllib2.Request(self.pageUrl)
        response = urllib2.urlopen(request)
        self.html = response.read()

    #解析html
    def analyze(self):
        self.getHtml()
        bSoup = bs4.BeautifulSoup(self.html)
        divs = bSoup.find_all("div",class_=‘ing-item‘)
        for div in divs:
            img = div.find("img")[‘src‘]
            item = div.find("div",class_=‘feed_body‘)
            userName = item.find("a",class_=‘ing-author‘).text
            text = item.find("span",class_=‘ing_body‘).text
            pubtime = item.find("a",class_=‘ing_time‘).text
            star = item.find("img",class_=‘ing-icon‘) and True or False
            print ‘( 头像: ‘,img,‘昵称: ‘,userName,‘,闪存: ‘,text,‘,时间: ‘,pubtime,‘,星星： ‘,star,‘)‘

    def run(self,page):
        pageNo = 1
        while (pageNo <= page):
            self.pageUrl = self.url.replace(‘${pageNo}‘, str(pageNo))+str(int(time.time()))
            print ‘-------------\r\n第 ‘,pageNo,‘ 页的数据如下：‘,self.pageUrl
            self.analyze()
            pageNo = pageNo + 1

CnBlogsSpider().run(3)