Question

javascript代码在这里：

var goat=6111+7380;
var hen=5548+7476^goat;
var seal=2094+4451^hen;
var rat=1687+7000^seal;
var pig=3997+8240^rat;

我想在python中获取goat，hen seal变量等等。我的python代码在这里：

animals = 'var goat=6111+7380;var hen=5548+7476^goat;var seal=2094+4451^hen;var rat=1687+7000^seal;var pig=3997+8240^rat;'
[eval(item.replace('var','').strip()) for item in animals.split(';')]####here is wrong

因为eval（'goat = 6111 + 7380'）是错误的，所以如何让目标等于6111+7380？

PS：感谢大家。实际上我抓了一个网站：http://pachong.org/来获取代理地址和端口。但是端口是由<script>document.write((4513^pig)+15);</script>生成的。pig变量是由<script type="text/javascript">var goat=6111+7380;var hen=5548+7476^goat;var seal=2094+4451^hen;var rat=1687+7000^seal;var pig=3997+8240^rat;</script>生成的，但是每当我抓取索引网站时，这个javascript代码就会改变。所以我不知道如何获得端口值。

###resultstring is something like this '(1646^hen)+19'
def getport(resultstring):
    port = eval(resultstring)
    return port

proxyurl= 'http://www.pachong.org/'
try:
    r = requests.get(proxyurl,timeout=60*4)
except:
    print 'I can not get the date of pachong.org'
if r.status_code != 200:
    print 'the status is not good. status_code is %s' % r.status_code
    return
ht = BeautifulSoup(r.content)
animals = str(ht.head.find_all('script')[-1].text)
[eval(item.replace('var','').strip()) for item in animals.split(';')]###it is wrong here

table = ht.find_all('table', attrs={'class':'tb'})
if not table:
    return
table = table[0]
trs = table.find_all('tr',attrs={'data-type':'high'})
tr = trs[0]
idlestring = tr.find_all('td')[5].text
idlestring = idlestring.replace('\n','').replace(' ','')
if idlestring == u'空闲':
    # proxy_id += 1
    ip = tr.find_all('td')[1].text
    portstring = tr.find_all('td')[2].text
    patt = re.compile(u'document.write\((.*?)\);')
    if re.findall(patt,portstring):
        resultstring = re.findall(patt,portstring)[0]
    else:
        continue
    port = getport(resultstring)
    ip_port = '%s:%s' % (ip, port)
    print 'ip_port is %s' % ip_port

Answer 1

我不知道你为什么要这样做，但这有效：

for item in animals.split(';'):
    exec(item.replace('var','').strip())

如何将javascript代码传递给python代码？

1 个答案: