集合的函数式API
val maxLengthFruit = list.maxBy { it.length }
val list = listOf("Apple", "Banana", "Orange", "Pear", "Grape", "Watermelon")<br> val newList = list.map { it.toUpperCase() }
val list = listOf("Apple", "Banana", "Orange", "Pear", "Grape", "Watermelon")<br> val newList = list.filter { it.length <= 5 } .map { it.toUpperCase() }
val list = listOf("Apple", "Banana", "Orange", "Pear", "Grape", "Watermelon")<br> val anyResult = list.any { it.length <= 5 }<br> val allResult = list.all { it.length <= 5 }<br>println("anyResult is " + anyResult + ", allResult is " + allResult)<br>
