python如何统计字符串每个单词出现的次数

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统计字符串每个单词出现的次数。

def word_amount(sentence):

split_list = sentence.split()

dict_result = {}

for word_name in split_list:

if word_name not in dict_result.keys():

dict_result[word_name] = 1

else:

dict_result[word_name] += 1

return dict_result

if __name__ == '__main__':

sentence = "I can because i think i can"

dict_result = word_amount(sentence)

print(dict_result)

或者：

if __name__ == '__main__':

sentence = "I can because i think i can"

result = {word: sentence.split().count(word) for word in set(sentence.split())}

print(result)

或者：

from collections import Counter

if __name__ == '__main__':

sentence = "I can because i think i can"

counts = Counter(sentence.split())

print(counts)

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