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rank.py
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rank.py
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# -*- coding: utf-8 -*-
"""
Created on Sun Feb 10 10:04:18 2019
@author: Administrator
"""
import requests
import bs4
from bs4 import BeautifulSoup
def getHTMLText(url):
try:
r=requests.get(url,timeout=30)
r.raise_for_status()
r.encoding=r.apparent_encoding
return r.text
except:
return "爬取失败"
def fillUnivList(ulist,html):
soup=BeautifulSoup(html,"html.parser")
for tr in soup.find('tbody').children:
#for tr in soup.find_all('tr',attr={'class':'alt'}):
if isinstance(tr,bs4.element.Tag):
tds=tr('td')
ulist.append([tds[0].string,tds[1].string,tds[3].string])
def printUnivList(ulist,num):
tplt = "{0:^10}\t{1:{3}^10}\t{2:^10}"
print(tplt.format("排名","学校名称","总分",chr(12288)))
for i in range(num): #做了优化,是输出的学校名称居中对齐,chr(12288)是汉字里面的空格
u=ulist[i]
print(tplt.format(u[0],u[1],u[2],chr(12288)))
def main():
ulist=[]
url='http:https://www.zuihaodaxue.cn/zuihaodaxuepaiming2019.html'
html=getHTMLText(url)
fillUnivList(ulist,html)
printUnivList(ulist,30)
#if __name__=='__main__':
main()