擅长:python、mysql、java
<p>类似下面的例子。这个想法是使用<code>county_zips.get</code>,如果给定的邮政编码没有城市,它将返回None</p>
<pre><code>county_zips = {'90210': 'Beverly Hills', '90001': 'Los Angeles'}
zip_ = input('Type the zip please:')
city = county_zips.get(zip_)
if city is not None:
print(f' The zip code {zip_} belongs to the city {city}')
else:
print(f'The zip code {zip_} does not belong to a city in L.A county')
</code></pre>