导入相关模块
import re
import requests
定义函数
利用requests模块提取url信息
def getHTMLText(url):
try:
r = requests.get(url,timeout = 30)
r.raise_for_status()
r.encoding = r.apparent_encoding
return r.text
except:
return ""
这里并没有利用BeautifuSoup模块对url信息进行结构化处理，而是直接利用正则表达式提取信息
def parserPage(ilt,html):
try:
plt = re.findall(r'\"view_price\"\:\"[\d\.]*\"',html) #正则表达式
tlt = re.findall(r'\"raw_title\"\:\".*?\"',html) #正则表达式
for i in range(len(plt)):
price = eval(plt[i].split(':')[1])
title = eval(tlt[i].split(':')[1])
ilt.append([price,title])
except:
print("")
打印信息
def printGoodsList(ilt):
tplt = "{:4}\t{:8}\t{:16}"
print(tplt.format("序号","价格","商品名称"))
count = 0
for g in ilt:
count += 1
print(tplt.format(count,g[0],g[1]))
def main():
goods = '太平鸟'
depth = 10
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)
parserPage(infoList,html)
except:
continue
printGoodsList(infoList)
main()
