如何在scala中一个接一个地合并或插入两个地图？

Question

我想将两个地图合并到一个地图列表中，如下所示：

val map1 = {"a" -> 1, "b" -> 2, "c" -> 3}
val map2 = {"x" -> 10, "y" -> 20, "z" -> 30}

val res = [{"a" ->1, "x" -> 10},{"b" -> 2, "y" -> 20},{"c" -> 3, "z" -> 30}]

Answer 1

也许是这样的：

val map1 = Map("a" -> 1, "b" -> 2, "c" -> 3)
val map2 = Map("x" -> 10, "y" -> 20, "z" -> 30)


(map1.toList, map2.toList).zipped.map{
   case (a,b) => Map(a,b)
}

Answer 2

您也可以尝试以下方法：

val map1 = Map("a" -> 1, "b" -> 2, "c" -> 3)
val map2 = Map("x" -> 10, "y" -> 20, "z" -> 30)

val res = for ((i, j) <- map1 zip map2) yield Map(i, j)