Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

take

跟limit作用一样
Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

WordCount

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

结合flatMap

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现
Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

flatMap扁平化

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现
Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

filter过滤

对集合中的元素进行过滤

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

zip拉链

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

union并集运算

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

intersect交集运算

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现

diff差集运算

谁在前保留谁

Scala集合List的常用方法:take/flatMap/filter/zip/union/intersect/diff及WordCount集合实现