val numbers1 = arrayOf(1, 2, 3, 4, 5)
val numbers2 = listOf(3, 4, 5, 6, 7)
// 查找两个数组的并集
val union = numbers1.union(numbers2)
// 输出：两个数组的并集: [1, 2, 3, 4, 5, 6, 7]
_console.log("两个数组的并集: ", union)