Scala 设置 dropRight() 方法与示例
dropRight()用于返回除最后“n”个元素之外的所有元素。
Method Definition: def dropRight(n: Int): Set[A]
Return Type: It returns a set containing all elements except last ‘n’ elements.
示例 #1:
// Scala program of dropRight()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating sets
val s1 = Set(1, 2, 3, 4, 5)
// Applying dropRight method
val s2 = s1.dropRight(1)
// Displays output
for(elem <- s2)
println(elem)
}
}
输出:
5
1
2
3
示例 #2:
// Scala program of dropRight()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating sets
val s1 = Set(1, 2, 3, 4, 5)
// Applying dropRight method
val s2 = s1.dropRight(2)
// Displays output
for(elem <- s2)
println(elem)
}
}
输出:
5
1
2