擅长:python、mysql、java
<p>为什么要将毫米转换为厘米(第5行:这是从厘米到分米的转换)?。你已经有了以厘米为单位的半径。
您的代码应该如下所示:</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
# radiusLargeZa = radiusLargeZa / 10 convert to cm from mm (this is cm to decimetre, you already have value in cm)
radiusLargeZa = radiusLargeZa * cm2in # convert to in from cm
euro_za2 = radiusLargeZa**2 * math.pi # calculate area from diameter
print( euro_za2 )
# 149.12777453063953
</code></pre>