在Android Kotlin中,使用for-loop创建多个对象是一种常见的操作,尤其在需要初始化一组相似对象时。以下是如何实现这一操作的步骤和示例代码。 基础概念 循环:在编程中,循环是一种控制结构,它允许代码块重复执行多次。 对象创建:在面向对象编程中,对象是通过类实例化得到的。 优势 代码简洁:使用循环可以减少...
双for循环跳出 fun main() { val list1 = mutableListOf<String>("可达鸭", "皮卡丘", "妙蛙种子", "杰尼龟") val list2 = mutableListOf<String>("皮卡丘", "小火龙", "宝石海星", "双弹瓦斯") loop1@ for (item1 inlist1) { println("list1 = $item1") for (item2 inlist2){ println(...
for循环遍历时获取index fun main() { val list1 = mutableListOf<Data>(Data("可达鸭", 3), Data("皮卡丘", 6), Data("妙蛙种子", 9)) for ((index, itemData) inlist1.withIndex()) { println("itemData = $itemData index = $index ") } } 1. 2. 3. 4. 5. 6. itemData = Data(na...
[Kotlin] for loop fun main() { val list= listOf("Java", "Kotlin", "Python")for(element in list) { println(element) }for((index, value) in list.withIndex()) { println("Elmenet at $index is $value") }/** Elmenet at 0 is Java Elmenet at 1 is Kotlin Elmenet at 2 is Pyt...
在Kotlin中编写复杂的for循环可以通过多种方式实现,包括使用范围、步长、条件判断以及嵌套循环等。以下是一些常见的复杂for循环的示例及其解释: 1. 基本for循环 基本的for循环用于遍历一个范围内的数字或者集合中的元素。 代码语言:txt 复制 for (i in 1..10) { println(i) } 2. 使用步长 如果你需要以特定的...
Unlike Java and other programming languages, there is no traditional for loop in Kotlin.In Kotlin, the for loop is used to loop through arrays, ranges, and other things that contains a countable number of values.You will learn more about ranges in the next chapter - which will create a ...
与Java和其他语言不同,Kotlin中没有传统的for循环。 在Kotlin中,for循环用于遍历范围,数组,映射等(提供迭代器的任何对象)。 Kotlin 中for循环的语法是: for (item in collection) { //循环体 } 示例:遍历范围 示例 fun main(args: Array<String>) { for (i in 1..5) { println(i) } } 在这里,循环...
In this tutorial, you shall learn how to iterate over the elements of a given array using For loop in Kotlin, with examples.
[Kotlin] for loop fun main() { val list= listOf("Java", "Kotlin", "Python")for(element in list) { println(element) }for((index, value) in list.withIndex()) { println("Elmenet at $index is $value") }/** Elmenet at 0 is Java Elmenet at 1 is Kotlin Elmenet at 2 is ...
In Kotlin, for loop is used to iterate through ranges, arrays, maps and so on (anything that provides an iterator). The syntax of for loop in Kotlin is: for (item in collection) { // body of loop } Example: Iterate Through a Range fun main(args: Array<String>) { for (i in 1...