vb.net怎么把汉字转换为GB2312编码,例如“广东”变成%B9%E3%B6%AB

GB2312是GBK编码的子集，使用GBK编码函数即可

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'GBK编码(结果以百分号%进行分隔)

Public Function GBKEncode(ByVal sInput As String) As String

Dim ret_GBKEncode As String = ""

Dim i As Integer

Dim startIndex As Integer = 0

Dim endIndex As Integer

Dim x() As Byte = System.Text.Encoding.Default.GetBytes(sInput) '字符以及字符串在vb2008中都是以unicode编码存储的

endIndex = x.Length - 1

For i = startIndex To endIndex

ret_GBKEncode = "%" Hex(x(i))

Next

Return ret_GBKEncode

End Function

'GBK解码

Public Function GBKDecode(ByVal sInput As String) As String

sInput = sInput.Replace("%", "")

Dim ret_GBKDecode As String = ""

Dim sLen As Integer = sInput.Length

Dim n As Integer = sLen \ 2

Dim sBytes(0 To n - 1) As Byte

'转化为字节码

For i As Integer = 1 To n

sBytes(i - 1) = CByte("H" sInput.Substring(2 * i - 2, 2))

Next

'将字节码转化为字符串

ret_GBKDecode = System.Text.Encoding.Default.GetString(sBytes)

Return ret_GBKDecode

End Function

vb.net 如何将编码GB2312转成UTF8

Imports System.Text

Public Function StringAsUtf8Bytes(ByVal strData As String) As Byte()

Dim bytes() As Byte

bytes = Encoding.UTF8.GetBytes(strData)

Return bytes

End Function

说明：strData参数是GB2312字符串，函数返回UTF8字节数组

vb.net 中 \uxxxx这类的编码实现转换成中文

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim S1 As String

Dim S2 As String

Dim S3 As String

Dim I1 As String

S1 = "\u652f\u4ed8\u5b9d"

S1 = Trim(S1)

Do While Len(S1) 1

I1 = InStr(1, S1, "\u")

If I1 0 Then

S3 = S3 Strings.Left(S1, I1 - 1)

S2 = "H" Mid(S1, I1 + 2, 4)

S2 = ChrW(S2)

S3 = S3 S2

S1 = Strings.Right(S1, Len(S1) - I1 - 5)

Else

S3 = S3 S1

S1 = ""

End If

Loop

MsgBox(S3)

End Sub

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