Console.ReadKey Console.ReadKey Console.ReadKey Console.ReadKey Method

定義

ユーザーによって押された次の文字キーまたはファンクション キーを取得します。Obtains the next character or function key pressed by the user.

オーバーロード

ReadKey() ReadKey() ReadKey() ReadKey()

ユーザーによって押された次の文字キーまたはファンクション キーを取得します。Obtains the next character or function key pressed by the user. 押されたキーは、コンソール ウィンドウに表示されます。The pressed key is displayed in the console window.

ReadKey(Boolean) ReadKey(Boolean) ReadKey(Boolean) ReadKey(Boolean)

ユーザーによって押された次の文字キーまたはファンクション キーを取得します。Obtains the next character or function key pressed by the user. 押されたキーは、オプションでコンソール ウィンドウに表示されます。The pressed key is optionally displayed in the console window.

ReadKey() ReadKey() ReadKey() ReadKey()

ユーザーによって押された次の文字キーまたはファンクション キーを取得します。Obtains the next character or function key pressed by the user. 押されたキーは、コンソール ウィンドウに表示されます。The pressed key is displayed in the console window.

public:
 static ConsoleKeyInfo ReadKey();
public static ConsoleKeyInfo ReadKey ();
static member ReadKey : unit -> ConsoleKeyInfo
Public Shared Function ReadKey () As ConsoleKeyInfo

戻り値

押されたコンソール キーに対応する ConsoleKey 定数と Unicode 文字 (存在する場合) を記述するオブジェクト。An object that describes the ConsoleKey constant and Unicode character, if any, that correspond to the pressed console key. また、ConsoleKeyInfo オブジェクトは、1 つ以上の Shift、Alt、Ctrl の各修飾子キーがコンソール キーと同時に押されたかどうかを ConsoleModifiers 値のビットごとの組み合わせで記述します。The ConsoleKeyInfo object also describes, in a bitwise combination of ConsoleModifiers values, whether one or more Shift, Alt, or Ctrl modifier keys was pressed simultaneously with the console key.

例外

In プロパティは、コンソール以外のストリームからリダイレクトされます。The In property is redirected from some stream other than the console.

最も一般的なのいずれかを使用して、ReadKey()は、ユーザー キーを押すと、アプリが終了または情報の追加のウィンドウを表示するまで、プログラムの実行を停止する方法です。One of the most common uses of the ReadKey() method is to halt program execution until the user presses a key and the app either terminates or displays an additional window of information. 次の例では、ReadKey()メソッドをユーザーにアプリを終了する前に、Enter キーを押すまで待機します。The following example uses the ReadKey() method to wait for the user to press the Enter key before terminating the app.

using System;

public class Example
{
   public static void Main()
   {
      DateTime dat = DateTime.Now;
      Console.WriteLine("The time: {0:d} at {0:t}", dat);
      TimeZoneInfo tz = TimeZoneInfo.Local;
      Console.WriteLine("The time zone: {0}\n", 
                        tz.IsDaylightSavingTime(dat) ?
                           tz.DaylightName : tz.StandardName);
      Console.Write("Press <Enter> to exit... ");
      while (Console.ReadKey().Key != ConsoleKey.Enter) {}
   }
}
// The example displays output like the following:
//     The time: 11/11/2015 at 4:02 PM:
//     The time zone: Pacific Standard Time
Module Example
   Public Sub Main()
      Dim dat As Date = Date.Now
      Console.WriteLine("The time: {0:d} at {0:t}", dat)
      Dim tz As TimeZoneInfo = TimeZoneInfo.Local
      Console.WriteLine("The time zone: {0}", 
                        If(tz.IsDaylightSavingTime(dat),
                           tz.DaylightName, tz.StandardName))
      Console.WriteLine()
      Console.Write("Press <Enter> to exit... ")
      Do While Console.ReadKey().Key <> ConsoleKey.Enter
      Loop
   End Sub
End Module
' The example displays the following output:
'     The time: 11/11/2015 at 4:02 PM
'     The time zone: Pacific Standard Time

このオーバー ロードはのメモ、ReadKeyメソッドが既定では、表示可能なキーをコンソールに、ユーザーがキーを押したをエコーします。Note that this overload of the ReadKey method by default echoes any displayable keys that the user presses to the console. 非表示にしたりを呼び出す、ReadKeyメソッドをinterceptの引数trueします。To suppress them, call the ReadKey method with an intercept argument of true.

次の例では、ReadKey()ユーザーが押されたキーに関する情報を表示するメソッド。The following example uses the ReadKey() method to display information about which key the user pressed.

using namespace System;

void main()
{
   ConsoleKeyInfo cki;
   // Prevent example from ending if CTL+C is pressed.
   Console::TreatControlCAsInput = true;

   Console::WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.");
   Console::WriteLine("Press the Escape (Esc) key to quit: \n");
   do 
   {
      cki = Console::ReadKey();
      Console::Write(" --- You pressed ");
      if((cki.Modifiers & ConsoleModifiers::Alt) != ConsoleModifiers()) Console::Write("ALT+");
      if((cki.Modifiers & ConsoleModifiers::Shift) != ConsoleModifiers()) Console::Write("SHIFT+");
      if((cki.Modifiers & ConsoleModifiers::Control) != ConsoleModifiers()) Console::Write("CTL+");
      Console::WriteLine(cki.Key.ToString());
   } while (cki.Key != ConsoleKey::Escape);
}
// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//       
//       a --- You pressed A 
//       k --- You pressed ALT+K 
//       ► --- You pressed CTL+P 
//         --- You pressed RightArrow 
//       R --- You pressed SHIFT+R 
//                --- You pressed CTL+I 
//       j --- You pressed ALT+J 
//       O --- You pressed SHIFT+O 
//       § --- You pressed CTL+U }
using System;

class Example 
{
   public static void Main() 
   {
      ConsoleKeyInfo cki;
      // Prevent example from ending if CTL+C is pressed.
      Console.TreatControlCAsInput = true;

      Console.WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.");
      Console.WriteLine("Press the Escape (Esc) key to quit: \n");
      do 
      {
         cki = Console.ReadKey();
         Console.Write(" --- You pressed ");
         if((cki.Modifiers & ConsoleModifiers.Alt) != 0) Console.Write("ALT+");
         if((cki.Modifiers & ConsoleModifiers.Shift) != 0) Console.Write("SHIFT+");
         if((cki.Modifiers & ConsoleModifiers.Control) != 0) Console.Write("CTL+");
         Console.WriteLine(cki.Key.ToString());
       } while (cki.Key != ConsoleKey.Escape);
    }
}
// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//       
//       a --- You pressed A 
//       k --- You pressed ALT+K 
//       ► --- You pressed CTL+P 
//         --- You pressed RightArrow 
//       R --- You pressed SHIFT+R 
//                --- You pressed CTL+I 
//       j --- You pressed ALT+J 
//       O --- You pressed SHIFT+O 
//       § --- You pressed CTL+U 
Class Example
   Public Shared Sub Main()
      Dim cki As ConsoleKeyInfo
      ' Prevent example from ending if CTL+C is pressed.
      Console.TreatControlCAsInput = True

      Console.WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.")
      Console.WriteLine("Press the Escape (Esc) key to quit: " + vbCrLf)
      Do
         cki = Console.ReadKey()
         Console.Write(" --- You pressed ")
         If (cki.Modifiers And ConsoleModifiers.Alt) <> 0 Then Console.Write("ALT+")
         If (cki.Modifiers And ConsoleModifiers.Shift) <> 0 Then Console.Write("SHIFT+")
         If (cki.Modifiers And ConsoleModifiers.Control) <> 0 Then Console.Write("CTL+")
         Console.WriteLine(cki.Key.ToString)
      Loop While cki.Key <> ConsoleKey.Escape
   End Sub 
End Class 
' This example displays output similar to the following:
'       Press any combination of CTL, ALT, and SHIFT, and a console key.
'       Press the Escape (Esc) key to quit:
'       
'       a --- You pressed A 
'       k --- You pressed ALT+K 
'       ► --- You pressed CTL+P 
'         --- You pressed RightArrow 
'       R --- You pressed SHIFT+R 
'                --- You pressed CTL+I 
'       j --- You pressed ALT+J 
'       O --- You pressed SHIFT+O 
'       § --- You pressed CTL+U 

注釈

ReadKeyメソッド待機、つまり、発行元のスレッド上のブロック、ReadKeyメソッド、文字またはファンクション キーが押されるまでです。The ReadKey method waits, that is, blocks on the thread issuing the ReadKey method, until a character or function key is pressed. 1 つまたは複数の Alt、ctrl キー、または Shift 修飾子キーの組み合わせ文字またはファンクション キーを押すこともできます。A character or function key can be pressed in combination with one or more Alt, Ctrl, or Shift modifier keys. ただし、修飾子キーを押すと、単独では発生しません、ReadKeyを返すメソッド。However, pressing a modifier key by itself will not cause the ReadKey method to return.

アプリケーションによっては、使用する場合があります、ReadKeyメソッドと組み合わせて、KeyAvailableプロパティ。Depending on your application, you might want to use the ReadKey method in conjunction with the KeyAvailable property.

ReadKeyメソッドは、ファイルに標準の入力がリダイレクトされる場合でも、キーボードから読み取り、SetInメソッド。The ReadKey method reads from the keyboard even if the standard input is redirected to a file with the SetIn method.

こちらもご覧ください

ReadKey(Boolean) ReadKey(Boolean) ReadKey(Boolean) ReadKey(Boolean)

ユーザーによって押された次の文字キーまたはファンクション キーを取得します。Obtains the next character or function key pressed by the user. 押されたキーは、オプションでコンソール ウィンドウに表示されます。The pressed key is optionally displayed in the console window.

public:
 static ConsoleKeyInfo ReadKey(bool intercept);
public static ConsoleKeyInfo ReadKey (bool intercept);
static member ReadKey : bool -> ConsoleKeyInfo
Public Shared Function ReadKey (intercept As Boolean) As ConsoleKeyInfo

パラメーター

intercept
Boolean Boolean Boolean Boolean

押されたキーをコンソール ウィンドウに表示するかどうかを決定します。Determines whether to display the pressed key in the console window. 押されたキーを表示しない場合は true。それ以外の場合は falsetrue to not display the pressed key; otherwise, false.

戻り値

押されたコンソール キーに対応する ConsoleKey 定数と Unicode 文字 (存在する場合) を記述するオブジェクト。An object that describes the ConsoleKey constant and Unicode character, if any, that correspond to the pressed console key. また、ConsoleKeyInfo オブジェクトは、1 つ以上の Shift、Alt、Ctrl の各修飾子キーがコンソール キーと同時に押されたかどうかを ConsoleModifiers 値のビットごとの組み合わせで記述します。The ConsoleKeyInfo object also describes, in a bitwise combination of ConsoleModifiers values, whether one or more Shift, Alt, or Ctrl modifier keys was pressed simultaneously with the console key.

例外

In プロパティは、コンソール以外のストリームからリダイレクトされます。The In property is redirected from some stream other than the console.

最も一般的なのいずれかを使用して、ReadKeyは、ユーザー キーを押すと、アプリが終了または情報の追加のウィンドウを表示するまで、プログラムの実行を停止する方法です。One of the most common uses of the ReadKey method is to halt program execution until the user presses a key and the app either terminates or displays an additional window of information. 次の例では、ReadKey(Boolean)メソッドをユーザーにアプリを終了する前に、Enter キーを押すまで待機します。The following example uses the ReadKey(Boolean) method to wait for the user to press the Enter key before terminating the app. 場合は、ユーザーは、その他の任意のキーを押すと、それがいない、コンソールにエコーに注意してください。Note that, if the user presses any other key, it is not echoed to the console.

using System;

public class Example
{
   public static void Main()
   {
      DateTime dat = DateTime.Now;
      Console.WriteLine("The time: {0:d} at {0:t}", dat);
      TimeZoneInfo tz = TimeZoneInfo.Local;
      Console.WriteLine("The time zone: {0}\n", 
                        tz.IsDaylightSavingTime(dat) ?
                           tz.DaylightName : tz.StandardName);
      Console.Write("Press <Enter> to exit... ");
      while (Console.ReadKey(true).Key != ConsoleKey.Enter) {}
   }
}
// The example displays output like the following:
//     The time: 11/11/2015 at 4:02 PM:
//     The time zone: Pacific Standard Time
Module Example
   Public Sub Main()
      Dim dat As Date = Date.Now
      Console.WriteLine("The time: {0:d} at {0:t}", dat)
      Dim tz As TimeZoneInfo = TimeZoneInfo.Local
      Console.WriteLine("The time zone: {0}", 
                        If(tz.IsDaylightSavingTime(dat),
                           tz.DaylightName, tz.StandardName))
      Console.WriteLine()
      Console.Write("Press <Enter> to exit... ")
      Do While Console.ReadKey(True).Key <> ConsoleKey.Enter
      Loop
   End Sub
End Module
' The example displays the following output:
'     The time: 11/11/2015 at 4:02 PM
'     The time zone: Pacific Standard Time

次の例では、ReadKey(Boolean)メソッドは、コンソールにそのキーをエコーしないで、ユーザーによって押されたキーに関する情報を表示します。The following example uses the ReadKey(Boolean) method to display information about the key pressed by a user without echoing that key to the console.

using namespace System;

void main()
{
   ConsoleKeyInfo cki;
   // Prevent example from ending if CTL+C is pressed.
   Console::TreatControlCAsInput = true;

   Console::WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.");
   Console::WriteLine("Press the Escape (Esc) key to quit: \n");
   do {
      cki = Console::ReadKey(true);
      Console::Write("You pressed ");
      if ((cki.Modifiers & ConsoleModifiers::Alt) != ConsoleModifiers()) Console::Write("ALT+");
      if ((cki.Modifiers & ConsoleModifiers::Shift) != ConsoleModifiers()) Console::Write("SHIFT+");
      if ((cki.Modifiers & ConsoleModifiers::Control) != ConsoleModifiers()) Console::Write("CTL+");
      Console::WriteLine("{0} (character '{1}')", cki.Key, cki.KeyChar);
   } while (cki.Key != ConsoleKey::Escape);
}
// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//       
//       You pressed CTL+A (character '☺')
//       You pressed C (character 'c')
//       You pressed CTL+C (character '♥')
//       You pressed K (character 'k')
//       You pressed ALT+I (character 'i')
//       You pressed ALT+U (character 'u')
//       You pressed ALT+SHIFT+H (character 'H')
//       You pressed Escape (character '←')
using System;

class Example 
{
   public static void Main() 
   {
      ConsoleKeyInfo cki;
      // Prevent example from ending if CTL+C is pressed.
      Console.TreatControlCAsInput = true;

      Console.WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.");
      Console.WriteLine("Press the Escape (Esc) key to quit: \n");
      do {
         cki = Console.ReadKey(true);
         Console.Write("You pressed ");
         if ((cki.Modifiers & ConsoleModifiers.Alt) != 0) Console.Write("ALT+");
         if ((cki.Modifiers & ConsoleModifiers.Shift) != 0) Console.Write("SHIFT+");
         if ((cki.Modifiers & ConsoleModifiers.Control) != 0) Console.Write("CTL+");
         Console.WriteLine("{0} (character '{1}')", cki.Key, cki.KeyChar);
      } while (cki.Key != ConsoleKey.Escape);
   }
}
// This example displays output similar to the following:
//       Press any combination of CTL, ALT, and SHIFT, and a console key.
//       Press the Escape (Esc) key to quit:
//       
//       You pressed CTL+A (character '☺')
//       You pressed C (character 'c')
//       You pressed CTL+C (character '♥')
//       You pressed K (character 'k')
//       You pressed ALT+I (character 'i')
//       You pressed ALT+U (character 'u')
//       You pressed ALT+SHIFT+H (character 'H')
//       You pressed Escape (character '←')
Class Example
   Public Shared Sub Main()
      Dim cki As ConsoleKeyInfo
      ' Prevent example from ending if CTL+C is pressed.
      Console.TreatControlCAsInput = True

      Console.WriteLine("Press any combination of CTL, ALT, and SHIFT, and a console key.")
      Console.WriteLine("Press the Escape (Esc) key to quit: " + vbCrLf)
      Do
         cki = Console.ReadKey(True)
         Console.Write("You pressed ")
         If (cki.Modifiers And ConsoleModifiers.Alt) <> 0 Then Console.Write("ALT+")
         If (cki.Modifiers And ConsoleModifiers.Shift) <> 0 Then Console.Write("SHIFT+")
         If (cki.Modifiers And ConsoleModifiers.Control) <> 0 Then Console.Write("CTL+")
         Console.WriteLine("{0} (character '{1}')", cki.Key, cki.KeyChar)
      Loop While cki.Key <> ConsoleKey.Escape
   End Sub
End Class 
' This example displays output similar to the following:
'       Press any combination of CTL, ALT, and SHIFT, and a console key.
'       Press the Escape (Esc) key to quit:
'       
'       You pressed CTL+A (character '☺')
'       You pressed C (character 'c')
'       You pressed CTL+C (character '♥')
'       You pressed K (character 'k')
'       You pressed ALT+I (character 'i')
'       You pressed ALT+U (character 'u')
'       You pressed ALT+SHIFT+H (character 'H')
'       You pressed Escape (character '←')

注釈

ReadKeyメソッド待機、つまり、発行元のスレッド上のブロック、ReadKeyメソッド、文字またはファンクション キーが押されるまでです。The ReadKey method waits, that is, blocks on the thread issuing the ReadKey method, until a character or function key is pressed. 1 つまたは複数の Alt、ctrl キー、または Shift 修飾子キーの組み合わせ文字またはファンクション キーを押すこともできます。A character or function key can be pressed in combination with one or more Alt, Ctrl, or Shift modifier keys. ただし、修飾子キーを押すと、単独では発生しません、ReadKeyを返すメソッド。However, pressing a modifier key by itself will not cause the ReadKey method to return.

場合、interceptパラメーターがtrue、押されたキーが傍受およびいません、コンソール ウィンドウに表示されます。 それ以外の場合、押されたキーが表示されます。If the intercept parameter is true, the pressed key is intercepted and not displayed in the console window; otherwise, the pressed key is displayed.

アプリケーションによっては、使用する場合があります、ReadKeyメソッドと組み合わせて、KeyAvailableプロパティ。Depending on your application, you might want to use the ReadKey method in conjunction with the KeyAvailable property.

ReadKeyメソッドは、ファイルに標準の入力がリダイレクトされる場合でも、キーボードから読み取り、SetInメソッド。The ReadKey method reads from the keyboard even if the standard input is redirected to a file with the SetIn method.

こちらもご覧ください

適用対象