擅长:python、mysql、java
<p>如果<code>boot</code>等于<code>n</code>,会发生什么?从上到下执行,并执行所有测试:</p>
<pre><code>if boot == n:
print('Nike, great choice')
</code></pre>
<p><code>boot == n</code>。印刷的。你知道吗</p>
<pre><code>if boot == a:
print('Adidas, not my favorite')
</code></pre>
<p><code>boot != a</code>,没有打印。你知道吗</p>
<pre><code>if boot == p:
print('Not sure about Puma')
else:
print('I am not familiar with that brand')
</code></pre>
<p><code>boot != p</code>,否则执行部分。你知道吗</p>
<p>如果匹配,为了抑制进一步的测试,请使用<code>elif</code>:</p>
<pre><code>if boot == n:
print('Nike, great choice')
elif boot == a:
print('Adidas, not my favorite')
elif boot == p:
print('Not sure about Puma')
else:
print('I am not familiar with that brand')
</code></pre>