LinkedList<T> 建構函式

定義

命名空間:

System.Collections.Generic

組件:

System.Collections.dll

初始化 LinkedList<T> 類別的新執行個體。

多載

LinkedList<T>()	初始化 LinkedList<T> 類別的新執行個體，這個執行個體是空白的。
LinkedList<T>(IEnumerable<T>)	初始化 LinkedList<T> 類別的新執行個體，這個執行個體包含從指定之 IEnumerable 複製的項目，且具有足以容納複製之項目的容量。
LinkedList<T>(SerializationInfo, StreamingContext)	已淘汰. 使用指定的 LinkedList<T> 和 SerializationInfo，初始化 StreamingContext 類別之可序列化的新執行個體。

LinkedList<T>()

來源:

LinkedList.cs

初始化 LinkedList<T> 類別的新執行個體，這個執行個體是空白的。

public:
 LinkedList();

public LinkedList ();

Public Sub New ()

範例

下列程式代碼範例會建立並初始化 類型的 String，並新增數個LinkedList<T>節點，然後顯示其內容。

#using <System.dll>

using namespace System;
using namespace System::Collections;
using namespace System::Collections::Generic;

void main()
{
    // Create and initialize a new LinkedList.
    LinkedList< String^ > ^ ll = gcnew LinkedList< String^ >;
    ll->AddLast(L"red");
    ll->AddLast(L"orange");
    ll->AddLast(L"yellow");
    ll->AddLast(L"orange");

    // Display the contents of the LinkedList.
    if (ll->Count > 0)
    {
        Console::WriteLine(L"The first item in the list is {0}.", ll->First->Value);
        Console::WriteLine(L"The last item in the list is {0}.", ll->Last->Value);
        Console::WriteLine(L"The LinkedList contains:");

        for each (String^ s in ll)
        {
            Console::WriteLine(L"   {0}", s);
        }
    }
    else
    {
        Console::WriteLine(L"The LinkedList is empty.");
    }
}

/* This code produces the following output.

The first item in the list is red.
The last item in the list is orange.
The LinkedList contains:
   red
   orange
   yellow
   orange
*/

using System;
using System.Collections;
using System.Collections.Generic;

public class GenericCollection
{
    public static void Main()
    {
        // Create and initialize a new LinkedList.
        LinkedList<String> ll = new LinkedList<String>();
        ll.AddLast("red");
        ll.AddLast("orange");
        ll.AddLast("yellow");
        ll.AddLast("orange");

        // Display the contents of the LinkedList.
        if (ll.Count > 0)
        {
            Console.WriteLine("The first item in the list is {0}.", ll.First.Value);
            Console.WriteLine("The last item in the list is {0}.", ll.Last.Value);

            Console.WriteLine("The LinkedList contains:");
            foreach (String s in ll)
                Console.WriteLine("   {0}", s);
        }
        else
        {
            Console.WriteLine("The LinkedList is empty.");
        }
    }
}

/* This code produces the following output.

The first item in the list is red.
The last item in the list is orange.
The LinkedList contains:
   red
   orange
   yellow
   orange
*/

Imports System.Collections
Imports System.Collections.Generic

Public Class GenericCollection

    Public Shared Sub Main()

        ' Create and initialize a new LinkedList.
        Dim ll As New LinkedList(Of String)()
        ll.AddLast("red")
        ll.AddLast("orange")
        ll.AddLast("yellow")
        ll.AddLast("orange")

        ' Display the contents of the LinkedList.
        If ll.Count > 0 Then
            Console.WriteLine("The first item in the list is {0}.", ll.First.Value)
            Console.WriteLine("The last item in the list is {0}.", ll.Last.Value)

            Console.WriteLine("The LinkedList contains:")
            For Each s As String In  ll
                Console.WriteLine("   {0}", s)
            Next s 
        Else
            Console.WriteLine("The LinkedList is empty.")
        End If

    End Sub 

End Class

'This code produces the following output.
'
'The first item in the list is red.
'The last item in the list is orange.
'The LinkedList contains:
'   red
'   orange
'   yellow
'   orange

備註

LinkedList<T> 接受 null 作為參考型別的有效 Value 值，並允許重複的值。

LinkedList<T>如果是空的First，則與 Last 屬性包含 null。

此建構函式是 O (1) 作業。

LinkedList<T>(IEnumerable<T>)

來源:

LinkedList.cs

初始化 LinkedList<T> 類別的新執行個體，這個執行個體包含從指定之 IEnumerable 複製的項目，且具有足以容納複製之項目的容量。

public:
 LinkedList(System::Collections::Generic::IEnumerable<T> ^ collection);

public LinkedList (System.Collections.Generic.IEnumerable<T> collection);

new System.Collections.Generic.LinkedList<'T> : seq<'T> -> System.Collections.Generic.LinkedList<'T>

Public Sub New (collection As IEnumerable(Of T))

參數

collection

IEnumerable<T>

要將其項目複製到新 IEnumerable 的 LinkedList<T>。

例外狀況

ArgumentNullException

collection 為 null。

範例

如需包含此建構函式的範例，請參閱 類別 LinkedList<T> 。

備註

LinkedList<T> 接受 null 作為參考型別的有效 Value 值，並允許重複的值。

如果 collection 沒有任何項目，則新的 LinkedList<T> 是空的，而且 First 與 Last 屬性包含 null。

此建構函式是 o (n) 作業，其中 n 是 中的 collection項目數目。

LinkedList<T>(SerializationInfo, StreamingContext)

來源:

LinkedList.cs

警告

This API supports obsolete formatter-based serialization. It should not be called or extended by application code.

使用指定的 LinkedList<T> 和 SerializationInfo，初始化 StreamingContext 類別之可序列化的新執行個體。

protected:
 LinkedList(System::Runtime::Serialization::SerializationInfo ^ info, System::Runtime::Serialization::StreamingContext context);

[System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
protected LinkedList (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

[<System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Collections.Generic.LinkedList<'T> : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext -> System.Collections.Generic.LinkedList<'T>

Protected Sub New (info As SerializationInfo, context As StreamingContext)

參數

info

SerializationInfo

SerializationInfo 物件，包含序列化 LinkedList<T> 所需的資訊。

context

StreamingContext

StreamingContext 物件，包含 LinkedList<T> 所關聯之序列化資料流的來源及目的地。

屬性

ObsoleteAttribute

備註

LinkedList<T> 接受 null 作為參考型別的有效 Value 值，並允許重複的值。

LinkedList<T>如果是空的First，則與 Last 屬性包含 null。

此建構函式是 n 個) 作業的 O (。

另請參閱

• System.Runtime.Serialization