Process.StandardInput Eigenschaft

public:
 property System::IO::StreamWriter ^ StandardInput { System::IO::StreamWriter ^ get(); };

public System.IO.StreamWriter StandardInput { get; }

[System.ComponentModel.Browsable(false)]
public System.IO.StreamWriter StandardInput { get; }

member this.StandardInput : System.IO.StreamWriter

[<System.ComponentModel.Browsable(false)>]
member this.StandardInput : System.IO.StreamWriter

Public ReadOnly Property StandardInput As StreamWriter

Eigenschaftswert

Eine StreamWriter , die zum Schreiben des Standardeingabedatenstroms der Anwendung verwendet werden kann.

Attribute

BrowsableAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird veranschaulicht, wie der StandardInput Datenstrom eines Prozesses umgeleitet wird. Im Beispiel wird der sort Befehl mit umgeleiteter Eingabe gestartet. Anschließend fordert er den Benutzer zur Eingabe von Text auf und übergibt ihn mithilfe des umgeleiteten sort Datenstroms an den StandardInput Prozess. Die sort Ergebnisse werden dem Benutzer auf der Konsole angezeigt.

using System;
using System.IO;
using System.Diagnostics;
using System.ComponentModel;

namespace ProcessStandardInputSample
{
    class StandardInputTest
    {
        static void Main()
        {
            Console.WriteLine("Ready to sort one or more text lines...");

            // Start the Sort.exe process with redirected input.
            // Use the sort command to sort the input text.
            using (Process myProcess = new Process())
            {
                myProcess.StartInfo.FileName = "Sort.exe";
                myProcess.StartInfo.UseShellExecute = false;
                myProcess.StartInfo.RedirectStandardInput = true;

                myProcess.Start();

                StreamWriter myStreamWriter = myProcess.StandardInput;

                // Prompt the user for input text lines to sort.
                // Write each line to the StandardInput stream of
                // the sort command.
                String inputText;
                int numLines = 0;
                do
                {
                    Console.WriteLine("Enter a line of text (or press the Enter key to stop):");

                    inputText = Console.ReadLine();
                    if (inputText.Length > 0)
                    {
                        numLines++;
                        myStreamWriter.WriteLine(inputText);
                    }
                } while (inputText.Length > 0);

                // Write a report header to the console.
                if (numLines > 0)
                {
                    Console.WriteLine($" {numLines} sorted text line(s) ");
                    Console.WriteLine("------------------------");
                }
                else
                {
                    Console.WriteLine(" No input was sorted");
                }

                // End the input stream to the sort command.
                // When the stream closes, the sort command
                // writes the sorted text lines to the
                // console.
                myStreamWriter.Close();

                // Wait for the sort process to write the sorted text lines.
                myProcess.WaitForExit();
            }
        }
    }
}

open System.Diagnostics

printfn "Ready to sort one or more text lines..."

// Start the Sort.exe process with redirected input.
// Use the sort command to sort the input text.
use myProcess = new Process()

myProcess.StartInfo.FileName <- "Sort.exe"
myProcess.StartInfo.UseShellExecute <- false
myProcess.StartInfo.RedirectStandardInput <- true

myProcess.Start() |> ignore

let myStreamWriter = myProcess.StandardInput

// Prompt the user for input text lines to sort.
// Write each line to the StandardInput stream of
// the sort command.

let mutable inputText = ""
let mutable numLines = 0

while inputText.Length > 0 do
    printfn "Enter a line of text (or press the Enter key to stop):"

    inputText <- stdin.ReadLine()

    if inputText.Length > 0 then
        numLines <- numLines + 1
        myStreamWriter.WriteLine inputText

// Write a report header to the console.
if numLines > 0 then
    printfn $" {numLines} sorted text line(s) "
    printfn "------------------------"
else
    printfn $" No input was sorted"

// End the input stream to the sort command.
// When the stream closes, the sort command
// writes the sorted text lines to the
// console.
myStreamWriter.Close()

// Wait for the sort process to write the sorted text lines.
myProcess.WaitForExit()

Imports System.IO
Imports System.Diagnostics
Imports System.ComponentModel

Namespace Process_StandardInput_Sample

    Class StandardInputTest

        Shared Sub Main()

            Console.WriteLine("Ready to sort one or more text lines...")

            ' Start the Sort.exe process with redirected input.
            ' Use the sort command to sort the input text.
            Using myProcess As New Process()

                myProcess.StartInfo.FileName = "Sort.exe"
                myProcess.StartInfo.UseShellExecute = False
                myProcess.StartInfo.RedirectStandardInput = True

                myProcess.Start()

                Dim myStreamWriter As StreamWriter = myProcess.StandardInput

                ' Prompt the user for input text lines to sort. 
                ' Write each line to the StandardInput stream of
                ' the sort command.
                Dim inputText As String
                Dim numLines As Integer = 0
                Do
                    Console.WriteLine("Enter a line of text (or press the Enter key to stop):")

                    inputText = Console.ReadLine()
                    If inputText.Length > 0 Then
                        numLines += 1
                        myStreamWriter.WriteLine(inputText)
                    End If
                Loop While inputText.Length <> 0


                ' Write a report header to the console.
                If numLines > 0 Then
                    Console.WriteLine($" {numLines} sorted text line(s) ")
                    Console.WriteLine("------------------------")
                Else
                    Console.WriteLine(" No input was sorted")
                End If

                ' End the input stream to the sort command.
                ' When the stream closes, the sort command
                ' writes the sorted text lines to the 
                ' console.
                myStreamWriter.Close()


                ' Wait for the sort process to write the sorted text lines.
                myProcess.WaitForExit()
            End Using

        End Sub
    End Class  'StandardInputTest
End Namespace 'Process_StandardInput_Sample

Hinweise

Ein Process Kann Eingabetext aus dem Standardeingabedatenstrom lesen, in der Regel die Tastatur. Durch umleiten des StandardInput Datenstroms können Sie die Eingabe programmgesteuert angeben. Statt beispielsweise Tastatureingaben zu verwenden, können Sie Text aus dem Inhalt einer bestimmten Datei oder Ausgabe aus einer anderen Anwendung bereitstellen.

Weitere Informationen

• StandardOutput
• StandardError
• RedirectStandardInput