如果我了解您的问题，collections.Counter（）可以解决此问题。
文档中的示例似乎可以解决您的问题。
# Tally occurrences of words in a list
cnt = Counter()
for word in ['red', 'blue', 'red', 'green', 'blue', 'blue']:
cnt[word] += 1
print cnt
# Find the ten most common words in Hamlet
import re
words = re.findall('\w+', open('hamlet.txt').read().lower())
Counter(words).most_common(10)
从上面的示例中，您应该能够：
import re
import collections
words = re.findall('\w+', open('1976.03.txt').read().lower())
print collections.Counter(words)
wanted = "fish chips steak"
cnt = Counter()
words = re.findall('\w+', open('1976.03.txt').read().lower())
for word in words:
if word in wanted:
cnt[word] += 1
print cnt
602392714
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