BitConverter.ToBoolean BitConverter.ToBoolean BitConverter.ToBoolean BitConverter.ToBoolean Method

定義

多載

ToBoolean(ReadOnlySpan<Byte>) ToBoolean(ReadOnlySpan<Byte>) ToBoolean(ReadOnlySpan<Byte>) ToBoolean(ReadOnlySpan<Byte>)
ToBoolean(Byte[], Int32) ToBoolean(Byte[], Int32) ToBoolean(Byte[], Int32) ToBoolean(Byte[], Int32)

傳回從位元組陣列中指定位置的位元組所轉換的布林值。Returns a Boolean value converted from the byte at a specified position in a byte array.

ToBoolean(ReadOnlySpan<Byte>) ToBoolean(ReadOnlySpan<Byte>) ToBoolean(ReadOnlySpan<Byte>) ToBoolean(ReadOnlySpan<Byte>)

public:
 static bool ToBoolean(ReadOnlySpan<System::Byte> value);
public static bool ToBoolean (ReadOnlySpan<byte> value);
static member ToBoolean : ReadOnlySpan<byte> -> bool
Public Shared Function ToBoolean (value As ReadOnlySpan(Of Byte)) As Boolean

參數

傳回

ToBoolean(Byte[], Int32) ToBoolean(Byte[], Int32) ToBoolean(Byte[], Int32) ToBoolean(Byte[], Int32)

傳回從位元組陣列中指定位置的位元組所轉換的布林值。Returns a Boolean value converted from the byte at a specified position in a byte array.

public:
 static bool ToBoolean(cli::array <System::Byte> ^ value, int startIndex);
public static bool ToBoolean (byte[] value, int startIndex);
static member ToBoolean : byte[] * int -> bool
Public Shared Function ToBoolean (value As Byte(), startIndex As Integer) As Boolean

參數

value
Byte[]

位元組陣列。A byte array.

startIndex
Int32 Int32 Int32 Int32

value 內的位元組索引。The index of the byte within value.

傳回

如果在 startIndexvalue 的位元組為非零值 (Nonzero),則為 true,否則為 falsetrue if the byte at startIndex in value is nonzero; otherwise, false.

例外狀況

startIndex 小於零或大於 value 的長度減去 1。startIndex is less than zero or greater than the length of value minus 1.

範例

下列程式碼範例會使用Byte ToBoolean方法, 將Boolean陣列的元素轉換成值。The following code example converts elements of Byte arrays to Boolean values with the ToBoolean method.

// Example of the BitConverter::ToBoolean method.
using namespace System;

int main()
{
        // Define an array of byte values. 
        array<Byte>^ bytes = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 };

        Console::WriteLine("{0,5}{1,16}{2,10}\n", "index", "array element", "bool" );
        // Convert each array element to a Boolean value.
        for (int index = 0; index < bytes->Length; index++)
           Console::WriteLine("{0,5}{1,16:X2}{2,10}", index, bytes[index], 
                             BitConverter::ToBoolean(bytes, index));
}
// The example displays the following output:
//     index   array element      bool
//     
//         0              00     False
//         1              01      True
//         2              02      True
//         3              04      True
//         4              08      True
//         5              10      True
//         6              20      True
//         7              40      True
//         8              80      True
//         9              FF      True
using System;

class Example
{
    public static void Main( )
    {
        // Define an array of byte values. 
        byte[] bytes = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 };

        Console.WriteLine("{0,5}{1,16}{2,10}\n", "index", "array element", "bool" );
        // Convert each array element to a Boolean value.
        for (int index = 0; index < bytes.Length; index++)
           Console.WriteLine("{0,5}{1,16:X2}{2,10}", index, bytes[index], 
                             BitConverter.ToBoolean(bytes, index));
    }
}
// The example displays the following output:
//     index   array element      bool
//     
//         0              00     False
//         1              01      True
//         2              02      True
//         3              04      True
//         4              08      True
//         5              10      True
//         6              20      True
//         7              40      True
//         8              80      True
//         9              FF      True
Module Example
    Public Sub Main()
        ' Define an array of byte values. 
        Dim bytes() As Byte = { 0, 1, 2, 4, 8, 16, 32, 64, 128, 255 }

        Console.WriteLine("{0,5}{1,16}{2,10}\n", "index", "array element", "bool" )
        ' Convert each array element to a Boolean value.
        For index As Integer = 0 To bytes.Length - 1
           Console.WriteLine("{0,5}{1,16:X2}{2,10}", index, bytes(index), 
                             BitConverter.ToBoolean(bytes, index))
        Next                     
    End Sub 
End Module
' The example displays the following output:
'     index   array element      bool
'     
'         0              00     False
'         1              01      True
'         2              02      True
'         3              04      True
'         4              08      True
'         5              10      True
'         6              20      True
'         7              40      True
'         8              80      True
'         9              FF      True

備註

若要將Boolean值轉換成其位元組表示, 請GetBytes(Boolean)呼叫方法。To convert a Boolean value to its byte representation, call the GetBytes(Boolean) method.

另請參閱

適用於