Scala List drop() 方法与示例

drop()方法属于List类的 value成员。它用于选择除列表的前n 个元素之外的所有元素。

Method Definition: def drop(n: Int): List[A]

Where, n is the number of elements to be dropped from the stated sequence.

Return Type: It returns all the elements of the list except the first n ones.

示例 #1：

// Scala program of drop()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a List 
        val list = List("a", "b", "c", "d", "e", "f")
          
        // Applying drop method 
        val result = list.drop(4)
          
        // Displays output
        println(result)
      
    }
}

输出：

List(e, f)

示例 #2：

// Scala program of drop()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a List 
        val list = List(1, 2, 3, 4, 5, 6)
          
        // Applying drop method 
        val result = list.drop(2)
          
        // Displays output
        println(result)
      
    }
}

输出：

List(3, 4, 5, 6)