Question

我通过＆＃34;检查元素＆＃34;提取了一些div。来自链接http://www.sanfoundry.com/c-programming-questions-answers-variable-names-1/。在 div 中，有＆lt; p ＆gt;并且在＆lt; p ＆gt;有一些文字是＆lt; br ＆gt;的断行。我正在尝试提取这些文本，以便我可以逐个放入数组或数据库中。我一直在提取在＆lt; br ＆gt;之前和之后的require文本。

from bs4 import BeautifulSoup
soup = BeautifulSoup(htmls, 'html.parser')
h4s = soup.find_all('p')
for h4 in h4s:
    for text in h4.find_next_siblings('br'):
        print(text.strip())

那么shell如何单独获得＆＃34; C99标准保证内部＆＃34; ，＆＃34; 31＆＃34;，＆＃34; 63＆_的____字符的唯一性＃34;，＆＃34; 12＆＃34;，＆＃34; 14＆＃34;，＆＃34; C99标准保证_____字符的唯一性为外部＆＃34;和＆＃34; 31＆＃34;，＆＃34; 6＆＃34;，＆＃34; 12＆＃34;，＆＃34; 14＆＃34; 等...... < / p>

除此之外，我也不需要子弹编号和字母顺序

代码：

{{1}}

知道我哪里错了吗？

Answer 1

在这种情况下，您可以尝试CSS Selector - soup.select('div.entry-content p')会选择一个div，其中包含类（.）名称entry-content以及该div中的所有p 。我假设只有一个div具有该类名。

from bs4 import BeautifulSoup as bs

html = """<div class="entry-content" style="visibility: visible; opacity: 1;">
 <div style="text-align:justify">
This section on C interview <span id="IL_AD1" class="IL_AD">questions and answers</span> focuses on “Variable Names”. One shall practice these <span id="IL_AD5" class="IL_AD">interview questions</span> to improve their C programming skills needed for various interviews (campus interviews, walkin interviews, company interviews), placements, entrance exams and other competitive exams. These questions can be attempted by anyone focusing on learning C Programming language. They can be a beginner, fresher, engineering graduate or an experienced IT professional. Our C Interview questions come with detailed explanation of the <span id="IL_AD2" class="IL_AD">answers</span> which helps in better understanding of C <span id="IL_AD3" class="IL_AD">concepts</span>.<p></p>
<p>Here is a listing of C interview questions on “Variable Names” along with answers, explanations and/or solutions:
</p></div>
<p>1. C99 standard guarantees uniqueness of ____ characters for internal names.<br>
a) 31<br>
b) 63<br>
c) 12<br>
d) 14</p>
<span class="collapseomatic" id="id5489" tabindex="0" title="View Answer">View Answer</span><div id="target-id5489" class="collapseomatic_content " style="display: none;">Answer:b<br>
Explanation:ISO C99 compiler may consider only first 63 characters for internal.<br>
</div>
<p>2. C99 standard guarantess uniqueness of _____ characters for external names.<br>
a) 31<br>
b) 6<br>
c) 12<br>
d) 14</p>
<span class="collapseomatic " id="id7970" tabindex="0" title="View Answer">View Answer</span><div id="target-id7970" class="collapseomatic_content " style="display: none;">Answer:a<br>
Explanation:ISO C99 compiler may consider only first 31 characters for external<br>
variables having 31 characters due to which it may not be unique.<br>
</div>
<p>3. Which of the following is not a valid variable name declaration?<br>
a) int __a3;<br>
b) int __3a;<br>
c) int __A3;<br>
d) None of the mentioned</p>
<span class="collapseomatic " id="id5714" tabindex="0" title="View Answer">View Answer</span><div id="target-id5714" class="collapseomatic_content " style="display: none;">Answer:d<br>
Explanation:None.<br>
</div>
<p>4. Which of the following is not a valid variable name declaration?<br>
a) int _a3;<br>
b) int a_3;<br>
c) int 3_a;<br>
d) int _3a</p>"""

soup = bs(html,'html.parser')

p = soup.select('div.entry-content p')
for i in p[2:]:
    print i.text.encode('utf-8')
    print '\n'*3 # just print three newlines

输出 -

1. C99 standard guarantees uniqueness of ____ characters for internal names.
a) 31
b) 63
c) 12
d) 14




2. C99 standard guarantess uniqueness of _____ characters for external names.
a) 31
b) 6
c) 12
d) 14




3. Which of the following is not a valid variable name declaration?
a) int __a3;
b) int __3a;
c) int __A3;
d) None of the mentioned




4. Which of the following is not a valid variable name declaration?
a) int _a3;
b) int a_3;
c) int 3_a;
d) int _3a

如何在之间提取文本

1 个答案: