<p>如何使用变量引用<code>this_prize.left</code>或<code>this_prize.right</code>?</p>
<pre><code>from collections import namedtuple
import random
Prize = namedtuple("Prize", ["left", "right"])
this_prize = Prize("FirstPrize", "SecondPrize")
if random.random() > .5:
choice = "left"
else:
choice = "right"
# retrieve the value of "left" or "right" depending on the choice
print("You won", this_prize.choice)
AttributeError: 'Prize' object has no attribute 'choice'
</code></pre>