import requests
from bs4 import BeautifulSoup
import bs4
 

def getHTMLText(url):
    try:
        r = requests.get(url,timeout=30)
        r.raise_for_status()
        r.encoding = r.apparent_encoding
        return r.text
    except:
        return "獲取網頁內容失敗！"
 

def fillUnivList(ulist,html):
    soup 
 
= BeautifulSoup(html,"html.parser")
    for tr in soup.find('tbody').children:
        if isinstance(tr,bs4.element.Tag):
            tds = tr('td')
            ulist.append([tds[0].string,tds[1].string,tds[2].string,tds[3].string])
 

def printUnivList(ulist,num):
    tplt = "{0:^10}\t{1:{4}^10}\t{2:^10}\t{3:^10}
 
"
    print(tplt.format("排名","學校名稱","省市","總分",chr(12288)))
    for i in range(num):
        u = ulist[i]
        print(tplt.format(u[0],u[1],u[2],u[3],chr(12288)))
 
def main():
    uinfo = []
    url = "http://www.zuihaodaxue.com/zuihaodaxuepaiming2019.html"
    html = getHTMLText(url)
    fillUnivList(uinfo,html)
    printUnivList(uinfo,
 
20)
 
if __name__=="__main__":
    main()