本文整理匯總了VB.NET中System.Text.UTF8Encoding.UTF8Encoding構造函數的典型用法代碼示例。如果您正苦於以下問題：VB.NET UTF8Encoding構造函數的具體用法？VB.NET UTF8Encoding怎麽用？VB.NET UTF8Encoding使用的例子？那麽, 這裏精選的構造函數代碼示例或許可以為您提供幫助。您也可以進一步了解該構造函數所在類System.Text.UTF8Encoding的用法示例。
在下文中一共展示了UTF8Encoding構造函數的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: UTF8EncodingExample
' 導入命名空間
Imports System.Text
Class UTF8EncodingExample
Public Shared Sub Main()
Dim utf8 As New UTF8Encoding()
Dim encodingName As String = utf8.EncodingName
Console.WriteLine("Encoding name: " & encodingName)
End Sub
End Class示例2: UTF8EncodingExample
' 導入命名空間
Imports System.Text
Class UTF8EncodingExample
Public Shared Sub Main()
Dim utf8 As New UTF8Encoding()
Dim utf8EmitBOM As New UTF8Encoding(True)
Console.WriteLine("utf8 preamble:")
ShowArray(utf8.GetPreamble())
Console.WriteLine("utf8EmitBOM:")
ShowArray(utf8EmitBOM.GetPreamble())
End Sub
Public Shared Sub ShowArray(theArray As Array)
Dim o As Object
For Each o In theArray
Console.Write("[{0}]", o)
Next o
Console.WriteLine()
End Sub
End Class示例3: Example
' 導入命名空間
Imports System.Text
Class Example
Public Shared Sub Main()
Dim utf8 As New UTF8Encoding()
Dim utf8ThrowException As New UTF8Encoding(False, True)
' Create an array with two high surrogates in a row (\uD801, \uD802).
Dim chars() As Char = {"a"c, "b"c, "c"c, ChrW(&hD801), ChrW(&hD802), "d"c}
' The following method call will not throw an exception.
Dim bytes As Byte() = utf8.GetBytes(chars)
ShowArray(bytes)
Console.WriteLine()
Try
' The following method call will throw an exception.
bytes = utf8ThrowException.GetBytes(chars)
ShowArray(bytes)
Catch e As EncoderFallbackException
Console.WriteLine("{0} exception{2}Message:{2}{1}",
e.GetType().Name, e.Message, vbCrLf)
End Try
End Sub
Public Shared Sub ShowArray(theArray As Array)
For Each o In theArray
Console.Write("{0:X2} ", o)
Next
Console.WriteLine()
End Sub
End Class輸出：
61 62 63 EF BF BD EF BF BD 64 EncoderFallbackException exception Message: Unable to translate Unicode character \uD801 at index 3 to specified code page.