用python爬取淘宝网指定商品资料/仅学习算法实现用
import requests
import re
def getHTMLText(url):
try:
Headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36',
'Cookie': '******************************************************************'
}
r = requests.get(url, headers=Headers, timeout=30)
r.raise_for_status()
r.encoding = r.apparent_encoding
return r.text
except:
return "网页请求失败"
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}\t{:^8}\t{: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 = "Python"
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
print()
printGoodsList(infoList)
main()
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