python超简单爬虫教程
python超简单爬虫教程
python超简单爬虫教程
大家好!在这里给大家交流一下小编总结得python超简单爬虫教程,废话不多说,直接上代码
七大步骤:
1发送数据请求
2请求网站源码
3数据筛选
4存储数据
5数据可视化
6数据分析
7公司决策
完整代码如下:
import request import re import xlwt #获取源码 def get_content(page): url = 'https://www.zhipin.com/c101010100-p100109/?page='+str(page)+'&ka=page-'+str(page)+'' headers = { "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/1.63.6788.400 QQBrowser/10.3.2727.400" } req = request.get(url,headers=headers) req.encoding = 'utf-8' html = req.text return html #筛选数据 获取满足正则表达式所爬去的目标 def get(html): reg = re.compile(r'class="job-tab".*?<div class="job-title">(.*?)</div>.*?<span class="red">(.*?)</span>.*?target="_blank">(.*?)</a>',re.S) item = re.findall(reg,html) return items datalist = [] def saveDataToDatalist(): for j in range(1,6) print('正在爬取第'+str(j)+'页数据内容。。。') html get_content(j) for i in get(html) data = [] for j in range(0,5): data.append(i[j]) datalist.append(data) return #创建方法将datalist内容写入excel文件 def saveDataToExcel(savePath): book = xlwt.Workbook(encoding='utf-8',style_compression=0) sheet = book.add_sheet('boss',cell_overwrite_ok=Ture) col = ('职位','薪资','公司名称') for i in range(0,5) sheet.wirte(0,i,col[i]) for i in range(0,len(0,len(datalist)): data = datalist[i] for j in range(0,5): sheet.wirte(i+1,j,data[j]) book.save(savePath) saveDataToDatalist() saveDataToExcel('boss.xls')
就这样了,都看到这里了,点赞关注走一走吧,谢谢大家!