import requests
from bs4 import BeautifulSoup
import bs4
import re
def getHTMLText(url):
    try:
        r = requests.get(url)
        r.raise_for_status()
        r.encoding = r.apparent_encoding
        return r.text
    except:
        return ""


def fillUnivList(ulist,rlist,html):
    count=0
    soup = BeautifulSoup(html,"html.parser"
 
)
    for tg in soup.find_all("div",attrs ={"class":"pl2"}):

        name = tg.find("a")
        ulist.append(name.text.split()[0])

        if tg.find_all("span",attrs={"class":"rating_nums"}):
            rate = tg.find("span",attrs={"class":"rating_nums"})
            rlist.append(rate.text)
        else
 
:
            rlist.append("無評價")

        print ("{}  :   {}".format(ulist[count],rlist[count]))
        count+=1





def main():
    sumz=0
    lst=[]
    while sumz<=980:
        lst.append(sumz)
        sumz=sumz+20
    for n in lst:
        uinfo = []
        rinfo=[]
        url = "https://movie.douban.com/tag/%E9%9F%A9%E5%9B%BD?start="
 
+str(n)+"&type=S"
        html = getHTMLText(url)
        fillUnivList(uinfo,rinfo, html)



main()

re.compile是表示一組字串，
1、for tg in soup.find_all(re.compile(“name”))
預設遍歷標籤的名稱，沒有則返回[]

2、for tg in soup.find_all(id=recompile(“???”))
預設遍歷標籤的屬性，匹配則返回含該屬性標籤

3、for tg in soup.find_all(“div”,”pl2”)
預設遍歷含屬性值含”pl2”字串,名稱為”div”的標籤，返回標籤

4、for tg in soup.find_all(string=”>>>”)
遍歷標籤內的string文字,返回文字

5、若直接使用soup.find_all(re.compile(“abc”))
name中含abc 的均返回
其他同理