Menu
×
   ❮   
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS R TYPESCRIPT ANGULAR GIT POSTGRESQL MONGODB ASP AI GO KOTLIN SASS VUE DSA GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE
     ❯   

Kotlin For 循环


Kotlin 循环

在处理数组时,通常需要遍历所有元素。

要遍历数组元素,可以使用 for 循环以及 in 运算符

示例

输出 cars 数组中的所有元素

val cars = arrayOf("Volvo", "BMW", "Ford", "Mazda")
for (x in cars) {
  println(x)
}
自己尝试一下 »

您可以遍历各种类型的数组。在上面的示例中,我们使用了字符串数组。

在下面的示例中,我们遍历一个整数数组

示例

val nums = arrayOf(1, 5, 10, 15, 20)
for (x in nums) {
  println(x)
}
自己尝试一下 »

传统的 For 循环

与 Java 和其他编程语言不同,Kotlin 中没有传统的 for 循环。

在 Kotlin 中,for 循环用于遍历数组、范围和其他包含可数数量值的元素。

您将在下一章中学习更多关于范围的信息 - 它将创建一个值的范围。



×

Contact Sales

If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail:
[email protected]

Report Error

If you want to report an error, or if you want to make a suggestion, send us an e-mail:
[email protected]

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

Copyright 1999-2024 by Refsnes Data. All Rights Reserved. W3Schools is Powered by W3.CSS.