如何获取页面内的直接下载链接？

Question

我有这个代码：

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()

当我运行它时，我得到了这个结果：

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/

但我需要的只是这样的直接下载链接：

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

而不是最后一个块：

   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

从body的onload属性中读取url：

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