<p>所以我想做一个程序来计算不同行星的重量。这是令人沮丧的，因为它无法正确计算。在</p>
<pre><code>if ("Mercury" or "mercury" == planetName):
weight = weightObject * mercury
elif ("Venus" or "VEnus" == planetName):
weight = weightObject * venus
elif ("Earth's Moon" or "Earths Moon" == planetName):
weight = weightObject * earthsmoon
elif ("Mars" or "MArs" or "MARS" == planetName):
weight = weightObject * mars
elif ("Jupiter" or "JUpiter" == planetName):
weight = weightObject * jupiter
elif ("Saturn" or "saturn" == planetName):
weight = weightObject * saturn
elif ("uranus" or "Uranus" == planetName):
weight = weightObject * uranus
elif ("neptune" or "Neptune" == planetName):
weight = weightObject * neptune
elif ("pluto" or "Pluto" == planetName):
weight = weightObject * pluto
else:
weight = -1
#To print out the planet and weight and make sure its a planet and non negative number
#It will not calculate a negative weight or different planet than listed
if (weightObject > 0):
print("The weight of the object on",planetName,"is {0:,.2f}".format(weight))
else:
print("Error: Planet name not found or number was negative. Please try again.")
</code></pre>
<p>如果我为每个行星输入20.5，那么所有行星的数字都是完全相同的。有人能帮忙吗？在</p>
