words = Array("one", "two", "two", "three", "three", "three") wordPairsRDD = sc.parallelize(words).map(word => (word, 1))wordCountsWithGroup = wordPairsRD
D: groupByKey().map(t => (t._1, t._2.sum))上述语句的执行结果wordCountsWithGroup中包含的元素是
选项:
A:(“one”,1),(“two”,1),(“three”,1);
B:(“one”,1),(“two”,2),(“three”,1);
C:(“one”,3),(“two”,2),(“three”,1);
D:(“one”,1),(“two”,2),(“three”,3)
发布时间:2024-05-07 19:51:46