擅长:python、mysql、java
<p>从技术上讲,这是在修改传入的字典,而<code>return</code>是不必要的。你知道吗</p>
<pre><code>from math import sqrt
def func(d):
machs = []
for v, a, t in zip(d['velocity', d['altitude'], d['temperature']):
mach = v / sqrt(1.4 * 286 * (t - a * 0.05))
machs.append(mach)
d['mach'] = machs
return d
</code></pre>