如何獲得頁面內的直接下載鏈接？

Question

我有這樣的代碼：

import urllib 
from bs4 import BeautifulSoup 

f = open('log1.txt', 'w') 

url ='http://www.brothersoft.com/tamil-font-513607.html' 
pageUrl = urllib.urlopen(url) 
soup = BeautifulSoup(pageUrl) 

for a in soup.select("div.class1.coLeft a[href]"): 
    try: 
     suburl = ('http://www.brothersoft.com'+a['href']).encode('utf-8','replace') 
     f.write ('http://www.brothersoft.com'+a['href']+'\n') 
    except: 
     print 'cannot read' 
     f.write('cannot read:'+'http://www.brothersoft.com'+a['href']+'\n') 

     pass 

    content = urllib.urlopen(suburl) 
    soup = BeautifulSoup(content) 
    for a in soup.select("div.Sever1.coLeft a[href]"): 
     try: 
      suburl2 = ('http://www.brothersoft.com'+a['href']).encode('utf-8','replace') 
      f.write ('http://www.brothersoft.com'+a['href']+'\n') 
     except: 
      print 'cannot read' 
      f.write('cannot read:'+'http://www.brothersoft.com'+a['href']+'\n') 

      pass 

     content = urllib.urlopen(suburl2) 
     soup = BeautifulSoup(content) 
     for a in soup.select("span.p a[href]"): 
      try: 
       print (a['href']).encode('utf-8','replace') 
       f.write ('http://www.brothersoft.com'+a['href']+'\n') 
      except: 
       print 'cannot read' 
       f.write('cannot read:'+'http://www.brothersoft.com'+a['href']+'\n') 

       pass 




f.close() 

當我運行它，我得到這樣的結果：

http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Ffiles.brotherso 
ft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font 
http://ask.brothersoft.com/ask-a-question/?topic=1 
http://ask.brothersoft.com/ 
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Fusfiles.brother 
soft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font 
http://ask.brothersoft.com/ask-a-question/?topic=1 
http://ask.brothersoft.com/ 

但我需要的只是這樣的直接下載鏈接：

http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Ffiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font

Answer 1

而不是最後一個塊：

for a in soup.select("span.p a[href]"): 
     try: 
      print (a['href']).encode('utf-8','replace') 
      f.write ('http://www.brothersoft.com'+a['href']+'\n') 
     except: 
      print 'cannot read' 
      f.write('cannot read:'+'http://www.brothersoft.com'+a['href']+'\n') 

      pass 

讀取來自body的onload屬性的網址：

print soup.find('body')['onload'][10:-2]