ConsoleKeyInfo.Equals Methode

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

public:
 virtual bool Equals(ConsoleKeyInfo obj);

public:
 bool Equals(ConsoleKeyInfo obj);

public bool Equals(ConsoleKeyInfo obj);

override this.Equals : ConsoleKeyInfo -> bool

Public Function Equals (obj As ConsoleKeyInfo) As Boolean

Parameters

Retouren

trueals obj dit gelijk is aan het huidige ConsoleKeyInfo object; anders. false

Implementeringen

Opmerkingen

Twee ConsoleKeyInfo objecten zijn gelijk als de bijbehorende KeyChar, Keyen Modifiers eigenschappen gelijk zijn.

De Equals methode presteert iets beter dan de ConsoleKeyInfo.Equals(Object) methode omdat deze niet hoeft te worden geconverteerd obj naar een object.

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

Bron:

ConsoleKeyInfo.cs

public:
 override bool Equals(System::Object ^ value);

public override bool Equals(object? value);

public override bool Equals(object value);

override this.Equals : obj -> bool

Public Overrides Function Equals (value As Object) As Boolean

Parameters

Retouren

trueals value het een ConsoleKeyInfo object is en gelijk is aan het huidige ConsoleKeyInfo object; anders. false

Voorbeelden

In het volgende voorbeeld ziet u de Equals methode.

// This example demonstrates the ConsoleKeyInfo.Equals() method.

using System;
using System.Text;

class Sample
{
    public static void Main()
    {
    string k1 = "\nEnter a key ......... ";
    string k2 = "\nEnter another key ... ";
    string key1 = "";
    string key2 = "";
    string areKeysEqual = "The {0} and {1} keys are {2}equal.";
    string equalValue = "";
    string prompt = "Press the escape key (ESC) to quit, " +
                    "or any other key to continue.";
    ConsoleKeyInfo cki1;
    ConsoleKeyInfo cki2;

//
// The Console.TreatControlCAsInput property prevents this example from
// ending if you press CTL+C, however all other operating system keys and
// shortcuts, such as ALT+TAB or the Windows Logo key, are still in effect.
//
    Console.TreatControlCAsInput = true;

// Request that the user enter two key presses. A key press and any
// combination shift, CTRL, and ALT modifier keys is permitted.
    do
    {
        Console.Write(k1);
        cki1 = Console.ReadKey(false);
        Console.Write(k2);
        cki2 = Console.ReadKey(false);
        Console.WriteLine();
//
        key1 = KeyCombination(cki1);
        key2 = KeyCombination(cki2);
        if (cki1.Equals(cki2))
            equalValue = "";
        else
            equalValue = "not ";
        Console.WriteLine(areKeysEqual, key1, key2, equalValue);
//
        Console.WriteLine(prompt);
        cki1 = Console.ReadKey(true);
    } while (cki1.Key != ConsoleKey.Escape);
// Note: This example requires the Escape (Esc) key.
    }

// The KeyCombination() method creates a string that specifies what
// key and what combination of shift, CTRL, and ALT modifier keys
// were pressed simultaneously.

    protected static string KeyCombination(ConsoleKeyInfo sourceCki)
    {
    StringBuilder sb = new StringBuilder();
    sb.Length = 0;
    string keyCombo;
    if (sourceCki.Modifiers != 0)
        {
        if ((sourceCki.Modifiers & ConsoleModifiers.Alt) != 0)
            sb.Append("ALT+");
        if ((sourceCki.Modifiers & ConsoleModifiers.Shift) != 0)
            sb.Append("SHIFT+");
        if ((sourceCki.Modifiers & ConsoleModifiers.Control) != 0)
            sb.Append("CTL+");
        }
    sb.Append(sourceCki.Key.ToString());
    keyCombo = sb.ToString();
    return keyCombo;
    }
}

/*
This example produces results similar to the following output:

Enter a key ......... a
Enter another key ... a
The A and A keys are equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key ......... a
Enter another key ... A
The A and SHIFT+A keys are not equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key ......... S
Enter another key ...
The ALT+SHIFT+S and ALT+CTL+F keys are not equal.
Press the escape key (ESC) to quit, or any other key to continue.

Enter a key .........
Enter another key ...
The UpArrow and UpArrow keys are equal.
Press the escape key (ESC) to quit, or any other key to continue.

*/

// This example demonstrates the ConsoleKeyInfo.Equals() method.

open System
open System.Text

// The keyCombination function creates a string that specifies what
// key and what combination of shift, CTRL, and ALT modifier keys
// were pressed simultaneously.
let keyCombination (sourceCki: ConsoleKeyInfo) =
    let sb = StringBuilder()
    sb.Length <- 0
    if int sourceCki.Modifiers <> 0 then
        if int (sourceCki.Modifiers &&& ConsoleModifiers.Alt) <> 0 then
            sb.Append "ALT+" |> ignore
        if int (sourceCki.Modifiers &&& ConsoleModifiers.Shift) <> 0 then
            sb.Append "SHIFT+" |> ignore
        if int (sourceCki.Modifiers &&& ConsoleModifiers.Control) <> 0 then
            sb.Append "CTL+" |> ignore
    
    sourceCki.Key
    |> string
    |> sb.Append
    |> string

//
// The Console.TreatControlCAsInput property prevents this example from
// ending if you press CTL+C, however all other operating system keys and
// shortcuts, such as ALT+TAB or the Windows Logo key, are still in effect.
//
Console.TreatControlCAsInput <- true

let mutable cki1 = Unchecked.defaultof<ConsoleKeyInfo>
let mutable cki2 = Unchecked.defaultof<ConsoleKeyInfo>

// Request that the user enter two key presses. A key press and any
// combination shift, CTRL, and ALT modifier keys is permitted.
while cki1.Key <> ConsoleKey.Escape do
    printf "\nEnter a key ......... "
    cki1 <- Console.ReadKey false
    printf "\nEnter another key ... "
    cki2 <- Console.ReadKey false
    printfn ""

    let key1 = keyCombination cki1
    let key2 = keyCombination cki2
    let equalValue =
        if cki1.Equals cki2 then ""
        else "not "

    printfn $"The {key1} and {key2} keys are {equalValue}equal."

    printfn "Press the escape key (ESC) to quit, or any other key to continue."
    cki1 <- Console.ReadKey true

// Note: This example requires the Escape (Esc) key.


// This example produces results similar to the following output:
//
// Enter a key ......... a
// Enter another key ... a
// The A and A keys are equal.
// Press the escape key (ESC) to quit, or any other key to continue.
//
// Enter a key ......... a
// Enter another key ... A
// The A and SHIFT+A keys are not equal.
// Press the escape key (ESC) to quit, or any other key to continue.
//
// Enter a key ......... S
// Enter another key ...
// The ALT+SHIFT+S and ALT+CTL+F keys are not equal.
// Press the escape key (ESC) to quit, or any other key to continue.
//
// Enter a key .........
// Enter another key ...
// The UpArrow and UpArrow keys are equal.
// Press the escape key (ESC) to quit, or any other key to continue.

' This example demonstrates the ConsoleKeyInfo.Equals() method.
Imports System.Text

Class Sample
    Public Shared Sub Main() 
        Dim k1 As String = vbCrLf & "Enter a key ......... "
        Dim k2 As String = vbCrLf & "Enter another key ... "
        Dim key1 As String = ""
        Dim key2 As String = ""
        Dim areKeysEqual As String = "The {0} and {1} keys are {2}equal."
        Dim equalValue As String = ""
        Dim prompt As String = "Press the escape key (ESC) to quit, " & _
                               "or any other key to continue."
        Dim cki1 As ConsoleKeyInfo
        Dim cki2 As ConsoleKeyInfo
        
        '
        ' The Console.TreatControlCAsInput property prevents this example from
        ' ending if you press CTL+C, however all other operating system keys and 
        ' shortcuts, such as ALT+TAB or the Windows Logo key, are still in effect. 
        '
        Console.TreatControlCAsInput = True
        
        ' Request that the user enter two key presses. A key press and any 
        ' combination shift, CTRL, and ALT modifier keys is permitted.
        Do
            Console.Write(k1)
            cki1 = Console.ReadKey(False)
            Console.Write(k2)
            cki2 = Console.ReadKey(False)
            Console.WriteLine()
            '
            key1 = KeyCombination(cki1)
            key2 = KeyCombination(cki2)
            If cki1.Equals(cki2) Then
                equalValue = ""
            Else
                equalValue = "not "
            End If
            Console.WriteLine(areKeysEqual, key1, key2, equalValue)
            '
            Console.WriteLine(prompt)
            cki1 = Console.ReadKey(True)
        Loop While cki1.Key <> ConsoleKey.Escape
    
    End Sub
    ' Note: This example requires the Escape (Esc) key.
    
    ' The KeyCombination() method creates a string that specifies what 
    ' key and what combination of shift, CTRL, and ALT modifier keys 
    ' were pressed simultaneously.
    Protected Shared Function KeyCombination(ByVal sourceCki As ConsoleKeyInfo) As String 
        Dim sb As New StringBuilder()
        sb.Length = 0
        Dim keyCombo As String
        If sourceCki.Modifiers <> 0 Then
            If(sourceCki.Modifiers And ConsoleModifiers.Alt) <> 0 Then
                sb.Append("ALT+")
            End If
            If(sourceCki.Modifiers And ConsoleModifiers.Shift) <> 0 Then
                sb.Append("SHIFT+")
            End If
            If(sourceCki.Modifiers And ConsoleModifiers.Control) <> 0 Then
                sb.Append("CTL+")
            End If
        End If
        sb.Append(sourceCki.Key.ToString())
        keyCombo = sb.ToString()
        Return keyCombo
    
    End Function 'KeyCombination
End Class

'
'This example produces results similar to the following output:
'
'Enter a key ......... a
'Enter another key ... a
'The A and A keys are equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'
'Enter a key ......... a
'Enter another key ... A
'The A and SHIFT+A keys are not equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'
'Enter a key ......... S
'Enter another key ...
'The ALT+SHIFT+S and ALT+CTL+F keys are not equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'
'Enter a key .........
'Enter another key ...
'The UpArrow and UpArrow keys are equal.
'Press the escape key (ESC) to quit, or any other key to continue.
'

Opmerkingen

Twee ConsoleKeyInfo objecten zijn gelijk als de bijbehorende KeyChar, Keyen Modifiers eigenschappen gelijk zijn.