– 统计操作
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如何利用MapReduce和Iterable接口实现高效的统计操作?
“python,from mapreduce import iterable_MapReduce,,def mapper(x):, return x, 1,,def reducer(x, y):, return x + y,,data = [1, 2, 3, 4, 5],result = iterable_MapReduce(data, mapper, reducer),print(result),“