程序的结构设计
进群:960410445 即可获取数十套PDF!
步骤1:提交商品搜索请求,循环获取页面
步骤2:对于每个页面,提取商品名称和价格信息
步骤3:将信息输出到屏幕上
eval():eval函数能够将我们获取的字符串最外层的双引号或者单引号去掉
>>> a=1 >>> eval("a+1") 2 >>> print("a+1") a+1 import requests import re def getHTMLText(url): try: r=requests.get(url,timeout=30) r.raise_for_status() r.encoding=r.apparent_encoding return r.text except: return "" def parsePage(ilt,html): try: plt=re.findall(r'"view_price":"[d.]*"',html) tlt=re.findall(r'"raw_title":".*?"',html) for i in range(len(plt)): price=eval(plt[i].split(':')[1]) title=eval(tlt[i].split(':')[1]) ilt.append([price,title]) except: print("") def printGoodsList(ilt): tplt="{:4} {:8} {:16}" print(tplt.format("序号","价格","商品名称")) count=0 for g in ilt: count=count+1 print(tplt.format(count,g[0],g[1])) def main(): goods='裙子' depth=2 start_url='https://s.taobao.com/search?q='+goods infoList=[] for i in range(depth): try: url=start_url+'&s='+str(44*i) html=getHTMLText(url) parsePage(infoList,html) except: continue printGoodsList(infoList) main()
私信小编 007 有惊喜哦!