擅长:python、mysql、java
<p>如果我理解正确,我想这就是你想做的:</p>
<pre><code>import re
items = [ 'green apple', 'yellow pepper', 'green pepper', 'red pepper' ]
fruitsandveggies = { 'apple': 2, 'banana': 5, 'pepper': 6}
for key in fruitsandveggies.keys():
fruitsandveggies[key] = 0
for item in items:
if re.search(key, item): # if it finds the key string in the item
fruitsandveggies[key] += 1
#print str(fruitsandveggies[key]) + ' ' + key #python 2
print(str(fruitsandveggies[key]) + ' ' + key) #python 3
</code></pre>
<p>它会打印出来</p>
<p>3胡椒粉
1个苹果
0香蕉</p>
<p>在这个例子中</p>