Python 如何获取特定的HTML标记

如果项目没有文本，我将尝试获取HTML标记。
例如：我正在遍历所有“a”属性（URL）。
但是，有些URL中有文本，有些则没有。
在这种情况下，我试图获取那些没有文本的URL。
所以我就这样做了

response = requests.get('https://fw.tmall.com/tmall/ser/tmall_detail.htm?spm=a1z1g.2177293.0.0.qF9gPO&service_code=ts-4078').text
soup = BeautifulSoup(response)
main_wrapper = soup.find('div',attrs={'id':'success-case'}).findAll('a')
for items in main_wrapper:
    dictionary = {}
    href = items['href']
    if items.string is None:
        print items['href']
    else:
        print items.string

如果items.string为None:仅获取特定于项目的URL，而不是所有URL，我该如何操作

我正在尝试获取那些没有文本的URL

你可以使用列表理解

hrefs = [a['href'] for a in main_wrapper if a.string is None]

仅获取该项目特定的url，而不是所有url

不清楚这意味着什么。每个

a

标记只有一个特定的URL。您在一个

a

标记列表上进行迭代，因此得到一个URL列表

---

我想获得特定的HTML属性，在本例中，它将是

然后，您需要在循环中使用另一个

find

方法来提取该

属性

我正在尝试获取那些没有文本的URL

你可以使用列表理解

hrefs = [a['href'] for a in main_wrapper if a.string is None]

仅获取该项目特定的url，而不是所有url

不清楚这意味着什么。每个
a
标记只有一个特定的URL。您在一个
a
标记列表上进行迭代，因此得到一个URL列表

我想获得特定的HTML属性，在本例中，它将是

然后，您需要在循环中使用另一个
find
方法来提取
属性我假定您正在尝试从div中的无序列表中获取唯一的锚。您可以看到每个锚都有一个唯一的类，
rel ink
vs
rel name
：

 <a href="//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358" target="_blank" class="rel-ink"><img alt="NIHAOMARKET官方海外旗舰店" src="//img.alicdn.com/top/i1/TB1urimJFXXXXabaXXXwu0bFXXX.png" class="rel-img"></a>
 <a href="//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358" target="_blank" class="rel-name">NIHAOMARKET官方海外旗舰店</a>

或者使用css选择器：

两者都将为您提供：

['//store.taobao.com/shop/view_shop.htm?user_number_id=692020965', '//store.taobao.com/shop/view_shop.htm?user_number_id=2087799889', '//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358', '//store.taobao.com/shop/view_shop.htm?user_number_id=377676745', '//store.taobao.com/shop/view_shop.htm?user_number_id=2367059695', '//store.taobao.com/shop/view_shop.htm?user_number_id=449764134', '//store.taobao.com/shop/view_shop.htm?user_number_id=698389964', '//store.taobao.com/shop/view_shop.htm?user_number_id=509711360', '//store.taobao.com/shop/view_shop.htm?user_number_id=692020965', '//store.taobao.com/shop/view_shop.htm?user_number_id=1125022434', '//store.taobao.com/shop/view_shop.htm?user_number_id=1071997040', '//store.taobao.com/shop/view_shop.htm?user_number_id=795947607', '//store.taobao.com/shop/view_shop.htm?user_number_id=509711360', '//store.taobao.com/shop/view_shop.htm?user_number_id=692020965', '//store.taobao.com/shop/view_shop.htm?user_number_id=1071997040', '//store.taobao.com/shop/view_shop.htm?user_number_id=509711360', '//store.taobao.com/shop/view_shop.htm?user_number_id=377676745', '//store.taobao.com/shop/view_shop.htm?user_number_id=2367059695', '//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358']

我假定您正在尝试从div中的无序列表中获取唯一的锚。您可以看到每个锚都有一个唯一的类，
rel ink
vs
rel name
：

 <a href="//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358" target="_blank" class="rel-ink"><img alt="NIHAOMARKET官方海外旗舰店" src="//img.alicdn.com/top/i1/TB1urimJFXXXXabaXXXwu0bFXXX.png" class="rel-img"></a>
 <a href="//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358" target="_blank" class="rel-name">NIHAOMARKET官方海外旗舰店</a>

或者使用css选择器：

两者都将为您提供：

['//store.taobao.com/shop/view_shop.htm?user_number_id=692020965', '//store.taobao.com/shop/view_shop.htm?user_number_id=2087799889', '//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358', '//store.taobao.com/shop/view_shop.htm?user_number_id=377676745', '//store.taobao.com/shop/view_shop.htm?user_number_id=2367059695', '//store.taobao.com/shop/view_shop.htm?user_number_id=449764134', '//store.taobao.com/shop/view_shop.htm?user_number_id=698389964', '//store.taobao.com/shop/view_shop.htm?user_number_id=509711360', '//store.taobao.com/shop/view_shop.htm?user_number_id=692020965', '//store.taobao.com/shop/view_shop.htm?user_number_id=1125022434', '//store.taobao.com/shop/view_shop.htm?user_number_id=1071997040', '//store.taobao.com/shop/view_shop.htm?user_number_id=795947607', '//store.taobao.com/shop/view_shop.htm?user_number_id=509711360', '//store.taobao.com/shop/view_shop.htm?user_number_id=692020965', '//store.taobao.com/shop/view_shop.htm?user_number_id=1071997040', '//store.taobao.com/shop/view_shop.htm?user_number_id=509711360', '//store.taobao.com/shop/view_shop.htm?user_number_id=377676745', '//store.taobao.com/shop/view_shop.htm?user_number_id=2367059695', '//store.taobao.com/shop/view_shop.htm?user_number_id=2469022358']

你能澄清一下吗？你得到了什么？你想得到什么？我想得到特定的HTML属性，在这种情况下，如果该元素没有文本，它将是位于该元素内部的IMG URL。你能试着澄清一下吗？你得到了什么？你想得到什么？我想得到特定的HTML属性，在本例中，如果该元素没有文本，则它将是位于该元素内部的IMG URL。欢迎。你可以用帖子旁边的复选标记表示感谢。欢迎。你可以用帖子旁边的复选标记表示感谢。