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摘要:import pandas as pdimport pprintimport numpy as npusers = ['user1','user2','user3','user4','user5',]items = ['item A','item B','item C','item D','item
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摘要:import pandas as pd import pprint import numpy as np users = ['user1','user2','user3','user4','user5',] items = ['item A','item B','item C','item D','
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摘要:import pandas as pdimport numpy as npusers = ['user1','user2','user3','user4','user5',]items = ['item A','item B','item C','item D','item E',]datasets
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