我通过“inspect elements”从linkhttp://www.sanfoundry.com/c-programming-questions-answers-variable-names-1/提取了一些div。在div中有<;p>;而在<;p>;中有一些文本被<;br>;而我正试图提取这些文本,以便我可以一个接一个地放入数组或数据库中。我一直在提取之前和之后的所需文本<;br>;。在
<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>
那么,shell i如何分别获得“C99标准来保证内部”,“31”,“63”,“12”,“14”,“C99标准保证外部”和“31”,“6”,“12”,“14”的唯一性,等等。。。。。。在
除此之外,我也不需要项目符号编号和字母顺序
代码:
^{pr2}$你知道我哪里错了吗?在
您可以尝试}的div。我假设只有一个具有该类名的
CSS Selector
在这种情况下-soup.select('div.entry-content p')
将选择一个具有类(请参见.
)名称entry-content
以及该div中所有{div
。在输出-
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