问列表--如何查找项目出现的次数

EN

#initializing a variable with some mock poll data
option1 = "general store"
option2 = "supermarket"
option3 = "mall"
option4 = "small store"

sample_data = [option1,option2,option1,option1,option3,option3,option4,option4,option4,option2]

#a dict that will store the poll results
results = {}

for response in sample_data:
    results[response] = results.setdefault(response, 0) + 1

>>> from collections import Counter
>>> data = ['Store', 'Office', 'Store', 'Office', 'Home', 'Nowhere']
>>> Counter(data)
Counter({'Office': 2, 'Store': 2, 'Home': 1, 'Nowhere': 1})