擅长:python、mysql、java
<p>你可以简单地用in。你知道吗</p>
<pre><code>mylist = {'fruit':'apple','vegi':'carrot'}
test = ['fruit', 'vegi', 'veg']
for value in test:
if value in mylist:
print(value + ' is in the dict, its value : ' + mylist[value])
else:
raise Exception(value + ' not in dict.')
# Console
# fruit is in the dict, its value: apple
# vegi is in the dict, its value: carrot
# Exception: veg is not in dict
</code></pre>