网站介绍:文章浏览阅读4.5k次。本文叙述Collections里最常见的三种操作map, flatMap, filter,与For表达式的关系。List对三种方法的实现map在List的实现:abstract class List[+T] { def map[U](f: T => U): List[U] = this match { case x :: xs => f(x) :: xs.map(f) case_flink filter() scala
- 链接地址:https://blog.csdn.net/zbf8441372/article/details/45291481
- 链接标题:Scala Learning(2): map, flatMap, filter与For表达式_flink filter() scala-CSDN博客
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