– 数据统计
-
如何利用MapReduce和Iterable接口实现高效的数据统计?
“python,from itertools import chain, islice,,def mapreduce(iterable, func_map, func_reduce):, return reduce(func_reduce, map(func_map, iterable)),,# 示例代码,data = [1, 2, 3, 4, 5],result = mapreduce(data, lambda x: x * 2, lambda x, y: x + y),print(result) # 输出结果: 60,“