ConsoleKeyInfo.Equals Метод

Определение

Пространство имен:

System

Сборки:

netstandard.dll, System.Console.dll

Возвращает значение, указывающее, равен ли объект или указанный ConsoleKeyInfo объект текущему ConsoleKeyInfo объекту.

Перегрузки

Имя	Описание
Equals(ConsoleKeyInfo)	Возвращает значение, указывающее, равен ли указанный ConsoleKeyInfo объект текущему ConsoleKeyInfo объекту.
Equals(Object)	Возвращает значение, указывающее, равен ли указанный объект текущему ConsoleKeyInfo объекту.

Equals(ConsoleKeyInfo)

Исходный код:

ConsoleKeyInfo.cs

Возвращает значение, указывающее, равен ли указанный ConsoleKeyInfo объект текущему ConsoleKeyInfo объекту.

public:
 virtual bool Equals(ConsoleKeyInfo obj);

public bool Equals(ConsoleKeyInfo obj);

override this.Equals : ConsoleKeyInfo -> bool

Public Function Equals (obj As ConsoleKeyInfo) As Boolean

Параметры

obj

ConsoleKeyInfo

Объект для сравнения с текущим ConsoleKeyInfo объектом.

Возвращаемое значение

Boolean

true Значение , если obj равно текущему ConsoleKeyInfo объекту; в противном случае false.

Реализации

Equals(T)

Комментарии

Два ConsoleKeyInfo объекта равны, если их KeyCharKeyсоответствующие свойства, а Modifiers свойства равны.

Метод Equals выполняет немного лучше, ConsoleKeyInfo.Equals(Object) чем метод, так как он не должен преобразоваться obj в объект.

Equals(Object)

Исходный код:

ConsoleKeyInfo.cs

Возвращает значение, указывающее, равен ли указанный объект текущему ConsoleKeyInfo объекту.

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

public override bool Equals(object? value);

override this.Equals : obj -> bool

Public Overrides Function Equals (value As Object) As Boolean

Параметры

value

Object

Объект для сравнения с текущим ConsoleKeyInfo объектом.

Возвращаемое значение

Boolean

Значение >, если является объектом и равно текущему объекту; в противном случае .

Примеры

В следующем примере демонстрируется Equals метод.

// 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.
'

Комментарии

Два ConsoleKeyInfo объекта равны, если их KeyCharKeyсоответствующие свойства, а Modifiers свойства равны.