擅长:python、mysql、java
<p>使用<a href="http://docs.python.org/library/stdtypes.html#str.format" rel="noreferrer">^{<cd1>}</a>的<a href="http://docs.python.org/library/string.html#format-string-syntax" rel="noreferrer">syntax</a>以两个小数位显示</em><code>answer</code>(不改变<code>answer</code>的基本值):</p>
<pre><code>def printC(answer):
print("\nYour Celsius value is {:0.2f}ºC.\n".format(answer))
</code></pre>
<p>其中:</p>
<ul>
<li><code>:</code>介绍了<a href="https://docs.python.org/reference/lexical_analysis.html#grammar-token-format-spec" rel="noreferrer">format spec</a></li>
<li><code>0</code>为数字类型启用符号感知零填充</li>
<li><code>.2</code>将<a href="https://docs.python.org/library/string.html#grammar-token-precision" rel="noreferrer">precision</a>设置为<code>2</code></li>
<li><code>f</code>将数字显示为定点数字</li>
</ul>