摘要： 知识点： 1.构造映射，映射是对偶的集合 val scores1 = Map("Alice" -> 10, "Bob" -> 7, "Cindy" -> 9) //不可变映射 // val scores1 = Map(("Alice",),("Bob",),("Cindy",)) val scores2 = scala.collection.mutable.Map("Alice" -> ... 阅读全文