Kotlin ArrayList类型toTypedArray转换Array

╰+哭是因爲堅強的太久メ 2024-02-05 15:57 21阅读 0赞

### Kotlin ArrayList类型toTypedArray转换Array ###

###  ###

data class Point(val x: Float, val y: Float)
    
    fun array_test(points: ArrayList<Array<Point>>) {
        points.forEachIndexed { idx, ap ->
            ap.forEach {
                print("$idx $it ")
            }
    
            println()
        }
    }
    
    fun main(args: Array<String>) {
        val p1 = arrayListOf(
            Point(0.0f, 0.0f),
            Point(0.1f, 0.1f),
            Point(0.5f, 0.5f),
        )
    
        val p2 = arrayListOf(
            Point(0.6f, 0.6f),
            Point(1.0f, 1.0f),
        )
    
        array_test(arrayListOf(p1.toTypedArray(), p2.toTypedArray()))
    }

> 0 Point(x=0.0, y=0.0) 0 Point(x=0.1, y=0.1) 0 Point(x=0.5, y=0.5)  
> 1 Point(x=0.6, y=0.6) 1 Point(x=1.0, y=1.0)

[kotlin forEachIndexed arrayListOf＜String＞-CSDN博客文章浏览阅读129次。Python for循环中的zip\_python zip函数用于for循环\_zhangphil的博客-CSDN博客。![favicon32.ico][]https://blog.csdn.net/zhangphil/article/details/131003571][kotlin forEachIndexed arrayListOf_String_-CSDN_129_Python for_zip_python zip_for_zhangphil_-CSDN_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_131003571]

[扁平的MutableList元素每隔若干元素一组装入新MutableList，Kotlin-CSDN博客文章浏览阅读1.1k次，点赞19次，收藏23次。给定长度值length，把列表切分成每段长度为length的N段列表，Kotlin\_zhangphil的博客-CSDN博客。扁平的MutableList元素每隔若干元素一组装入新MutableList，Kotlin。文章浏览阅读652次。总长度:22 随机生成每段长度:4 算出段数:6。![favicon32.ico][]https://blog.csdn.net/zhangphil/article/details/134517311][MutableList_MutableList_Kotlin-CSDN_1.1k_19_23_length_length_N_Kotlin_zhangphil_-CSDN_MutableList_MutableList_Kotlin_652_22 _4 _6_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_134517311]

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