BinaryReader.BaseStream Egenskap

Definition

Namnområde:
System.IO
Sammansättningar:
mscorlib.dll, System.IO.dll
Sammansättningar:
netstandard.dll, System.Runtime.dll
Sammansättning:
System.IO.dll
Sammansättning:
System.Runtime.Extensions.dll
Sammansättning:
mscorlib.dll
Sammansättning:
netstandard.dll
Källa:
BinaryReader.cs
Källa:
BinaryReader.cs
Källa:
BinaryReader.cs
Källa:
BinaryReader.cs
Källa:
BinaryReader.cs

Exponerar åtkomst till den underliggande strömmen för BinaryReader.

public:
 virtual property System::IO::Stream ^ BaseStream { System::IO::Stream ^ get(); };
public virtual System.IO.Stream BaseStream { get; }
member this.BaseStream : System.IO.Stream
Public Overridable ReadOnly Property BaseStream As Stream

Egenskapsvärde

Stream

Den underliggande strömmen som är associerad med BinaryReader.

Exempel

I följande kodexempel visas hur du läser och skriver Double data till minnet med hjälp BinaryReader av klasserna och BinaryWriter ovanpå MemoryStream klassen. MemoryStream läser och skriver Byte endast data.

using System;
using System.IO;

class BinaryRW
{
    static void Main()
    {
        int i;
        const int arrayLength = 1000;

        // Create random data to write to the stream.
        Random randomGenerator = new Random();
        double[] dataArray = new double[arrayLength];
        for(i = 0; i < arrayLength; i++)
        {
            dataArray[i] = 100.1 * randomGenerator.NextDouble();
        }

        using(BinaryWriter binWriter =
            new BinaryWriter(new MemoryStream()))
        {
            // Write the data to the stream.
            Console.WriteLine("Writing data to the stream.");
            for(i = 0; i < arrayLength; i++)
            {
                binWriter.Write(dataArray[i]);
            }

            // Create a reader using the stream from the writer.
            using(BinaryReader binReader =
                new BinaryReader(binWriter.BaseStream))
            {
                try
                {
                    // Return to the beginning of the stream.
                    binReader.BaseStream.Position = 0;

                    // Read and verify the data.
                    Console.WriteLine("Verifying the written data.");
                    for(i = 0; i < arrayLength; i++)
                    {
                        if(binReader.ReadDouble() != dataArray[i])
                        {
                            Console.WriteLine("Error writing data.");
                            break;
                        }
                    }
                    Console.WriteLine("The data was written " +
                        "and verified.");
                }
                catch(EndOfStreamException e)
                {
                    Console.WriteLine("Error writing data: {0}.",
                        e.GetType().Name);
                }
            }
        }
    }
}

open System
open System.IO

let arrayLength = 1000

// Create random data to write to the stream.
let randomGenerator = Random()
let dataArray = 
    Array.init arrayLength (fun _ -> 100.1 * randomGenerator.NextDouble())
do
    use binWriter = new BinaryWriter(new MemoryStream())
    // Write the data to the stream.
    printfn $"Writing data to the stream."
    for num in dataArray do
        binWriter.Write num

    // Create a reader using the stream from the writer.
    use binReader = new BinaryReader(binWriter.BaseStream)
    try
        // Return to the beginning of the stream.
        binReader.BaseStream.Position <- 0

        // Read and verify the data.
        printfn "Verifying the written data."
        for num in dataArray do
            if binReader.ReadDouble() <> num then
                printfn "Error writing data."
        printfn "The data was written and verified."
    with :? EndOfStreamException as e ->
        printfn $"Error writing data: {e.GetType().Name}."

Imports System.IO

Public Class BinaryRW

    Shared Sub Main()
    
        Dim i As Integer
        Const upperBound As Integer = 1000

        ' Create random data to write to the stream.
        Dim dataArray(upperBound) As Double
        Dim randomGenerator As New Random()
        For i = 0 To upperBound
            dataArray(i) = 100.1 * randomGenerator.NextDouble()
        Next i

        Dim binWriter As New BinaryWriter(New MemoryStream())
        Try

            ' Write data to the stream.
            Console.WriteLine("Writing data to the stream.")
            
            For i = 0 To upperBound
                binWriter.Write(dataArray(i))
            Next i

            ' Create a reader using the stream from the writer.
            Dim binReader As New BinaryReader(binWriter.BaseStream)

            ' Return to the beginning of the stream.
            binReader.BaseStream.Position = 0

            ' Read and verify the data.
            Try
                Console.WriteLine("Verifying the written data.")
                For i = 0 To upperBound
                    If binReader.ReadDouble() <> dataArray(i) Then
                        Console.WriteLine("Error writing data.")
                        Exit For
                    End If
                Next i
                Console.WriteLine("The data was written and verified.")
            Catch ex As EndOfStreamException
                Console.WriteLine("Error writing data: {0}.", _
                    ex.GetType().Name)
            End Try
        Finally
            binWriter.Close()
        End Try

    End Sub
End Class

Kommentarer

Caution

Om du använder den underliggande dataströmmen när du läser eller använder kan BinaryReader det orsaka dataförlust och skada. Till exempel kan samma byte läsas mer än en gång, byte kan hoppas över eller teckenläsning kan bli oförutsägbart.

En lista över vanliga I/O-uppgifter finns i Vanliga I/O-uppgifter.

Gäller för

Se även