擅长:python、mysql、java
<p>抱歉,各位,无法添加评论,分数不够。
@Loocid<strong>半径是直径的两倍,而不是一半,是吗</p>
<p>答案是,如果你已经开始使用cm,为什么要将它转换为cm呢</p>
<pre><code>import math # for access to pi
diameterLargeZa = 35 # in Europe, a large pizza is 35cm across
cm2in = 1/2.54 # conversion ratio from centimeters to inches
radiusLargeZa = diameterLargeZa / 2 # calculate radius from diameter
# Line commented, not needed.
# radiusLargeZa = radiusLargeZa / 10 # convert to cm from mm, why ?
radiusLargeZa = radiusLargeZa * cm2in # convert to in from cm
euro_za2 = radiusLargeZa**2 * math.pi # calculate area from diameter
print( euro_za2 )
</code></pre>