Kotlin错误:未解决的引用:合并(对于list.merge()) [英] Kotlin Error: Unresolved reference: merge (for list.merge())

问题描述

根据来自此处:

val list = listOf(1,2,3,4,5,6)
val listRepeated = listOf(2,2,3,4,5,5,6)
println(list.merge(listRepeated) { it1, it2  -> it1 + it2 })

我收到以下错误消息:

Error:(33, 18) Kotlin: Unresolved reference: merge
Error:(33, 40) Kotlin: Cannot infer a type for this parameter. Please specify it explicitly.
Error:(33, 45) Kotlin: Cannot infer a type for this parameter. Please specify it explicitly.

如何获取此代码以进行正确编译?

How can I get this code to properly compile?

推荐答案

merge已在Kotlin 1.0 Beta 2中删除，如

merge has been dropped in Kotlin 1.0 Beta 2 as described here.

正如@tim_yates所说，此代码示例将为您提供与文章中相同的输出:

As @tim_yates said, this code sample will give you the same output as in the article:

val list = listOf(1,2,3,4,5,6)
val listRepeated = listOf(2,2,3,4,5,5,6)
println(list.zip(listRepeated) { it1, it2  -> it1 + it2 })

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