擅长:python、mysql、java
<p>在这里,一本字典将是一个很好的解决方案</p>
<pre><code>mapping = {
"l1": ["a","b","c"],
"l2": ["d","e","f"]
}
var1 = input("What list do you want to use? (l1 or l2)")
mapping[var1] # this is the list.
</code></pre>
<p>但是,如果<code>var1</code>不是字典中的键,则上述代码将引发<code>KeyError</code>。您可以对此进行检查,并使用<code>try-except</code>块打印有用的错误消息</p>
<pre><code>try:
my_list = mapping[var1]
except KeyError:
print("unknown input: {}".format(var1))
</code></pre>