Enumerable.Skip(IEnumerable<TSource>, Int32) Enumerable.Skip(IEnumerable<TSource>, Int32) Enumerable.Skip(IEnumerable<TSource>, Int32) Enumerable.Skip(IEnumerable<TSource>, Int32) Method

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Collections::Generic::IEnumerable<TSource> ^ Skip(System::Collections::Generic::IEnumerable<TSource> ^ source, int count);

public static System.Collections.Generic.IEnumerable<TSource> Skip<TSource> (this System.Collections.Generic.IEnumerable<TSource> source, int count);

static member Skip : seq<'Source> * int -> seq<'Source>

<Extension()>
Public Function Skip(Of TSource) (source As IEnumerable(Of TSource), count As Integer) As IEnumerable(Of TSource)

Parametri di tipo

Parametri

Restituisce

Eccezioni

Esempi

Esempio di codice seguente viene illustrato come utilizzare Skip per ignorare un numero specificato di elementi in una matrice ordinata e restituire gli elementi rimanenti.The following code example demonstrates how to use Skip to skip a specified number of elements in a sorted array and return the remaining elements.

int[] grades = { 59, 82, 70, 56, 92, 98, 85 };

IEnumerable<int> lowerGrades =
    grades.OrderByDescending(g => g).Skip(3);

Console.WriteLine("All grades except the top three are:");
foreach (int grade in lowerGrades)
{
    Console.WriteLine(grade);
}

/*
 This code produces the following output:

 All grades except the top three are:
 82
 70
 59
 56
*/

' Create an array of integers that represent grades.
Dim grades() As Integer = {59, 82, 70, 56, 92, 98, 85}

' Sort the numbers in descending order and
' get all but the first (largest) three numbers.
Dim lowerGrades As IEnumerable(Of Integer) =
grades _
.OrderByDescending(Function(g) g) _
.Skip(3)

' Display the results.
Dim output As New System.Text.StringBuilder("All grades except the top three are:" & vbCrLf)
For Each grade As Integer In lowerGrades
    output.AppendLine(grade)
Next
MsgBox(output.ToString())

' This code produces the following output:
'
' All grades except the top three are:
' 82
' 70
' 59
' 56

Commenti

Questo metodo viene implementato tramite l'esecuzione posticipata.This method is implemented by using deferred execution. Il controllo immediato valore restituito è un oggetto che archivia tutte le informazioni necessarie per eseguire l'azione.The immediate return value is an object that stores all the information that is required to perform the action. La query rappresentata da questo metodo non viene eseguita fino a quando l'oggetto viene enumerata chiamando relativi GetEnumerator metodo direttamente o tramite foreach in Visual c# o For Each in Visual Basic.The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in Visual C# or For Each in Visual Basic.

Se source contiene un valore più basso rispetto count gli elementi, un oggetto vuoto IEnumerable<T> viene restituito.If source contains fewer than count elements, an empty IEnumerable<T> is returned. Se count è minore o uguale a zero, tutti gli elementi di source vengono restituiti.If count is less than or equal to zero, all elements of source are yielded.

Il Take e Skip metodi sono complementi funzionali.The Take and Skip methods are functional complements. Una sequenza specifica coll e un numero intero n, i risultati della concatenazione coll.Take(n) e coll.Skip(n) produce la stessa sequenza di coll.Given a sequence coll and an integer n, concatenating the results of coll.Take(n) and coll.Skip(n) yields the same sequence as coll.

In Visual Basic sintassi delle espressioni di query, una Skip clausola viene convertita in una chiamata di Skip.In Visual Basic query expression syntax, a Skip clause translates to an invocation of Skip.

Si applica a

Vedi anche

• Clausola Skip (Visual Basic)Skip Clause (Visual Basic)