StringWriter 클래스

아티클
08/21/2007

정보를 문자열로 쓰기 위한 TextWriter를 구현합니다. 정보는 내부 StringBuilder에 저장됩니다.

네임스페이스: System.IO
어셈블리: mscorlib(mscorlib.dll)

구문

‘선언
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class StringWriter
    Inherits TextWriter
‘사용 방법
Dim instance As StringWriter

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public class StringWriter : TextWriter

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public ref class StringWriter : public TextWriter

/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public class StringWriter extends TextWriter

SerializableAttribute 
ComVisibleAttribute(true) 
public class StringWriter extends TextWriter

설명

다음 표에서는 일반적인 예 또는 관련된 I/O 작업의 예를 보여 줍니다.

수행 작업	참조 항목
텍스트 파일을 만듭니다.	방법: 파일에 텍스트 쓰기
텍스트 파일에 씁니다.	방법: 파일에 텍스트 쓰기
텍스트 파일에서 읽습니다.	방법: 파일의 텍스트 읽기
파일에 텍스트를 추가합니다.	방법: 로그 파일 열기 및 추가 File.AppendText FileInfo.AppendText
파일 크기를 가져옵니다.	FileInfo.Length
파일 특성을 가져옵니다.	File.GetAttributes
파일의 특성을 설정합니다.	File.SetAttributes
파일이 있는지 여부를 확인합니다.	File.Exists
이진 파일에서 읽습니다.	방법: 새로 만든 데이터 파일 읽기 및 쓰기
이진 파일에 씁니다.	방법: 새로 만든 데이터 파일 읽기 및 쓰기

예제

다음 코드 예제에서는 여러 개의 이중 공백 문장에서 연속된 단락을 만들고 이 단락을 다시 원래 텍스트로 변환하는 방법을 보여 줍니다.

Option Explicit
Option Strict

Imports Microsoft.VisualBasic
Imports System
Imports System.IO

Public Class StrReader

    Shared Sub Main()
    
        Dim textReaderText As String = "TextReader is the " & _
            "abstract base class of StreamReader and " & _
            "StringReader, which read characters from streams " & _
            "and strings, respectively." & _
            vbCrLf & vbCrLf & _
            "Create an instance of TextReader to open a text " & _
            "file for reading a specified range of characters, " & _
            "or to create a reader based on an existing stream." & _
            vbCrLf & vbCrLf & _
            "You can also use an instance of TextReader to read " & _
            "text from a custom backing store using the same " & _
            "APIs you would use for a string or a stream." & _
            vbCrLf & vbCrLf

        Console.WriteLine("Original text:" & vbCrLf & vbCrLf & _
            textReaderText)

        ' From textReaderText, create a continuous paragraph 
        ' with two spaces between each sentence.
        Dim aLine, aParagraph As String
        Dim strReader As New StringReader(textReaderText)
        While True
            aLine = strReader.ReadLine()
            If aLine Is Nothing Then
                aParagraph = aParagraph & vbCrLf
                Exit While
            Else
                aParagraph = aParagraph & aLine & " "
            End If
        End While
        Console.WriteLine("Modified text:" & vbCrLf & vbCrLf & _ 
            aParagraph)
    
        ' Re-create textReaderText from aParagraph.
        Dim intCharacter As Integer 
        Dim convertedCharacter As Char 
        Dim strWriter As New StringWriter()
        strReader = New StringReader(aParagraph)
        While True
            intCharacter = strReader.Read()

            ' Check for the end of the string 
            ' before converting to a character.
            If intCharacter = -1 Then
                Exit While
            End If

            convertedCharacter = Convert.ToChar(intCharacter)
            If convertedCharacter = "."C Then
                strWriter.Write("." & vbCrLf & vbCrLf)

                ' Bypass the spaces between sentences.
                strReader.Read()
                strReader.Read()
            Else
                strWriter.Write(convertedCharacter)
            End If
        End While
        Console.WriteLine(vbCrLf & "Original text:" & vbCrLf & _ 
            vbCrLf & strWriter.ToString())

    End Sub
End Class

using System;
using System.IO;

class StringRW
{
    static void Main()
    {
        string textReaderText = "TextReader is the abstract base " +
            "class of StreamReader and StringReader, which read " +
            "characters from streams and strings, respectively.\n\n" +

            "Create an instance of TextReader to open a text file " +
            "for reading a specified range of characters, or to " +
            "create a reader based on an existing stream.\n\n" +

            "You can also use an instance of TextReader to read " +
            "text from a custom backing store using the same " +
            "APIs you would use for a string or a stream.\n\n";

        Console.WriteLine("Original text:\n\n{0}", textReaderText);

        // From textReaderText, create a continuous paragraph 
        // with two spaces between each sentence.
        string aLine, aParagraph = null;
        StringReader strReader = new StringReader(textReaderText);
        while(true)
        {
            aLine = strReader.ReadLine();
            if(aLine != null)
            {
                aParagraph = aParagraph + aLine + " ";
            }
            else
            {
                aParagraph = aParagraph + "\n";
                break;
            }
        }
        Console.WriteLine("Modified text:\n\n{0}", aParagraph);

        // Re-create textReaderText from aParagraph.
        int intCharacter;
        char convertedCharacter;
        StringWriter strWriter = new StringWriter();
        strReader = new StringReader(aParagraph);
        while(true)
        {
            intCharacter = strReader.Read();

            // Check for the end of the string 
            // before converting to a character.
            if(intCharacter == -1) break;

            convertedCharacter = Convert.ToChar(intCharacter);
            if(convertedCharacter == '.')
            {
                strWriter.Write(".\n\n");

                // Bypass the spaces between sentences.
                strReader.Read();
                strReader.Read();
            }
            else
            {
                strWriter.Write(convertedCharacter);
            }
        }
        Console.WriteLine("\nOriginal text:\n\n{0}", 
            strWriter.ToString());
    }
}

using namespace System;
using namespace System::IO;
int main()
{
   String^ textReaderText = "TextReader is the abstract base "
   "class of StreamReader and StringReader, which read "
   "characters from streams and strings, respectively.\n\n"
   "Create an instance of TextReader to open a text file "
   "for reading a specified range of characters, or to "
   "create a reader based on an existing stream.\n\n"
   "You can also use an instance of TextReader to read "
   "text from a custom backing store using the same "
   "APIs you would use for a string or a stream.\n\n";
   Console::WriteLine(  "Original text:\n\n{0}", textReaderText );

   // From textReaderText, create a continuous paragraph 
   // with two spaces between each sentence.
      String^ aLine;
   String^ aParagraph;
   StringReader^ strReader = gcnew StringReader( textReaderText );
   while ( true )
   {
      aLine = strReader->ReadLine();
      if ( aLine != nullptr )
      {
         aParagraph = String::Concat( aParagraph, aLine,  " " );
      }
      else
      {
         aParagraph = String::Concat( aParagraph,  "\n" );
         break;
      }
   }

   Console::WriteLine(  "Modified text:\n\n{0}", aParagraph );
   
   // Re-create textReaderText from aParagraph.
   int intCharacter;
   Char convertedCharacter;
   StringWriter^ strWriter = gcnew StringWriter;
   strReader = gcnew StringReader( aParagraph );
   while ( true )
   {
      intCharacter = strReader->Read();
      
      // Check for the end of the string 
      // before converting to a character.
      if ( intCharacter == -1 )
            break;

      
      convertedCharacter = Convert::ToChar( intCharacter );
      if ( convertedCharacter == '.' )
      {
         strWriter->Write(  ".\n\n" );
         
         // Bypass the spaces between sentences.
         strReader->Read();
         strReader->Read();
      }
      else
      {
         strWriter->Write( convertedCharacter );
      }
   }

   Console::WriteLine(  "\nOriginal text:\n\n{0}", strWriter->ToString() );
}

import System.*;
import System.IO.*;

class StringRW
{
    public static void main(String[] args)
    {
        String textReaderText = "TextReader is the abstract base " 
            + "class of StreamReader and StringReader, which read " 
            + "characters from streams and strings, respectively.\n\n" 
            + "Create an instance of TextReader to open a text file " 
            + "for reading a specified range of characters, or to " 
            + "create a reader based on an existing stream.\n\n" 
            + "You can also use an instance of TextReader to read " 
            + "text from a custom backing store using the same " 
            + "APIs you would use for a string or a stream.\n\n";

        Console.WriteLine("Original text:\n\n{0}", textReaderText);

        // From textReaderText, create a continuous paragraph 
        // with two spaces between each sentence.
        String aParagraph = "";
        String aLine;
        StringReader strReader = new StringReader(textReaderText);
        while (true) {
            aLine = strReader.ReadLine();
            if (aLine != null) {
                aParagraph = aParagraph + aLine + " ";
            }
            else {
                aParagraph = aParagraph + "\n";
                break ;
            }
        }
        Console.WriteLine("Modified text:\n\n{0}", aParagraph);

        // Re-create textReaderText from aParagraph.
        int intCharacter;
        char convertedCharacter;
        StringWriter strWriter = new StringWriter();
        strReader = new StringReader(aParagraph);

        while (true) {
            intCharacter = strReader.Read();

            // Check for the end of the string 
            // before converting to a character.
            if (intCharacter == -1) {
                break ;
            }

            convertedCharacter = Convert.ToChar(intCharacter);
            if (convertedCharacter == '.') {
                strWriter.Write(".\n\n");

                // Bypass the spaces between sentences.
                strReader.Read();
                strReader.Read();
            }

            else {
                strWriter.Write(convertedCharacter);
            }
        }
        Console.WriteLine("\nOriginal text:\n\n{0}", strWriter.ToString());
    } //main
} //StringRW

상속 계층 구조

System.Object
   System.MarshalByRefObject
     System.IO.TextWriter
      System.IO.StringWriter

스레드로부터의 안전성

이 형식의 모든 public static(Visual Basic의 경우 Shared) 멤버는 스레드로부터 안전합니다. 인터페이스 멤버는 스레드로부터 안전하지 않습니다.

플랫폼

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.

버전 정보

.NET Framework

2.0, 1.1, 1.0에서 지원

.NET Compact Framework

2.0, 1.0에서 지원

참고 항목

참조

StringWriter 멤버
System.IO 네임스페이스
StringBuilder
StringReader 클래스

기타 리소스

파일 및 스트림 I/O
방법: 파일의 텍스트 읽기
방법: 파일에 텍스트 쓰기

다음을 통해 공유