BinaryReader.ReadByte 메서드
정의
중요
일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.
현재 스트림에서 다음 바이트를 읽고 스트림의 현재 위치를 1바이트 앞으로 이동합니다.
public:
virtual System::Byte ReadByte();public virtual byte ReadByte ();abstract member ReadByte : unit -> byte
override this.ReadByte : unit -> bytePublic Overridable Function ReadByte () As Byte반환
현재 스트림에서 읽은 다음 바이트입니다.
예외
스트림의 끝에 도달한 경우
스트림이 닫혔습니다.
I/O 오류가 발생했습니다.
예제
다음 코드 예제에서는 메모리를 백업 저장소로 사용하여 이진 데이터를 작성한 다음 데이터가 올바르게 작성되었는지 확인하는 방법을 보여줍니다.
using namespace System;
using namespace System::IO;
int main()
{
int i = 0;
// Create random data to write to the stream.
array<Byte>^writeArray = gcnew array<Byte>(1000);
(gcnew Random)->NextBytes( writeArray );
BinaryWriter^ binWriter = gcnew BinaryWriter( gcnew MemoryStream );
BinaryReader^ binReader = gcnew BinaryReader( binWriter->BaseStream );
try
{
// Write the data to the stream.
Console::WriteLine( "Writing the data." );
for ( i = 0; i < writeArray->Length; i++ )
{
binWriter->Write( writeArray[ i ] );
}
// Set the stream position to the beginning of the stream.
binReader->BaseStream->Position = 0;
// Read and verify the data from the stream.
for ( i = 0; i < writeArray->Length; i++ )
{
if ( binReader->ReadByte() != writeArray[ i ] )
{
Console::WriteLine( "Error writing the data." );
return -1;
}
}
Console::WriteLine( "The data was written and verified." );
}
// Catch the EndOfStreamException and write an error message.
catch ( EndOfStreamException^ e )
{
Console::WriteLine( "Error writing the data.\n{0}", e->GetType()->Name );
}
}
using System;
using System.IO;
class BinaryRW
{
static void Main()
{
int i = 0;
// Create random data to write to the stream.
byte[] writeArray = new byte[1000];
new Random().NextBytes(writeArray);
BinaryWriter binWriter = new BinaryWriter(new MemoryStream());
BinaryReader binReader =
new BinaryReader(binWriter.BaseStream);
try
{
// Write the data to the stream.
Console.WriteLine("Writing the data.");
for(i = 0; i < writeArray.Length; i++)
{
binWriter.Write(writeArray[i]);
}
// Set the stream position to the beginning of the stream.
binReader.BaseStream.Position = 0;
// Read and verify the data from the stream.
for(i = 0; i < writeArray.Length; i++)
{
if(binReader.ReadByte() != writeArray[i])
{
Console.WriteLine("Error writing the data.");
return;
}
}
Console.WriteLine("The data was written and verified.");
}
// Catch the EndOfStreamException and write an error message.
catch(EndOfStreamException e)
{
Console.WriteLine("Error writing the data.\n{0}",
e.GetType().Name);
}
}
}
open System
open System.IO
// Create random data to write to the stream.
let writeArray = Array.zeroCreate<byte> 1000
Random().NextBytes writeArray
let binWriter = new BinaryWriter(new MemoryStream())
let binReader = new BinaryReader(binWriter.BaseStream)
try
// Write the data to the stream.
printfn "Writing the data."
for i = 0 to writeArray.Length - 1 do
binWriter.Write writeArray[i]
// Set the stream position to the beginning of the stream.
binReader.BaseStream.Position <- 0
let mutable failed = false
// Read and verify the data from the stream.
for i = 0 to writeArray.Length - 1 do
if binReader.ReadByte() <> writeArray[i] then
printfn "Error writing the data."
failed <- true
if not failed then
printfn "The data was written and verified."
// Catch the EndOfStreamException and write an error message.
with :? EndOfStreamException as e ->
printfn $"Error writing the data.\n{e.GetType().Name}"
Imports System.IO
Public Class BinaryRW
Shared Sub Main()
Dim i As Integer = 0
' Create random data to write to the stream.
Dim writeArray(1000) As Byte
Dim randomGenerator As New Random()
randomGenerator.NextBytes(writeArray)
Dim binWriter As New BinaryWriter(New MemoryStream())
Dim binReader As New BinaryReader(binWriter.BaseStream)
Try
' Write the data to the stream.
Console.WriteLine("Writing the data.")
For i = 0 To writeArray.Length - 1
binWriter.Write(writeArray(i))
Next i
' Set the stream position to the beginning of the stream.
binReader.BaseStream.Position = 0
' Read and verify the data from the stream.
For i = 0 To writeArray.Length - 1
If binReader.ReadByte() <> writeArray(i) Then
Console.WriteLine("Error writing the data.")
Return
End If
Next i
Console.WriteLine("The data was written and verified.")
' Catch the EndOfStreamException and write an error message.
Catch ex As EndOfStreamException
Console.WriteLine("Error writing the data: {0}", _
ex.GetType().Name)
End Try
End Sub
End Class
설명
BinaryReader 는 실패한 읽기 후에 파일 위치를 복원하지 않습니다.
데이터 서식이 충돌하기 때문에 다음 인코딩과 함께 이 메서드를 사용하지 않는 것이 좋습니다.
UTF-7
ISO-2022-JP
ISCII
일반적인 I/O 작업 목록은 일반적인 I/O 작업을 참조하세요.