本文整理汇总了VB.NET中System.Text.UTF8Encoding.UTF8Encoding构造函数的典型用法代码示例。如果您正苦于以下问题：VB.NET UTF8Encoding构造函数的具体用法？VB.NET UTF8Encoding怎么用？VB.NET UTF8Encoding使用的例子？那么恭喜您, 这里精选的构造函数代码示例或许可以为您提供帮助。您也可以进一步了解该构造函数所在类System.Text.UTF8Encoding的用法示例。
在下文中一共展示了UTF8Encoding构造函数的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: UTF8EncodingExample
' 导入命名空间
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
' 导入命名空间
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
' 导入命名空间
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输出：
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.