vb.net的utf-8 vb utf8

gb2312>unicode>utf8， 以及逆转的方法'>VB.net 字符转换问题 字符（汉字、数字、字母、符号）>gb2312>unicode>utf8， 以及逆转的方法

字符编码转换吗?

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1.字符与gb2312(gbk的子集)：

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

2.Unicode字符串为UTF-8

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

'这里可以类推出好几种。

求教vb.net utf-8 解码

Public Function GBKDecode(ByVal sInput As String) As String

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

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.UTF8.GetString(sBytes)

Return ret_GBKDecode

End Function

'上面是函数，调用方法

MsgBox(GBKDecode(":%E9%80%81%E8%BE%BE%E6%97%A5%E6%9C%9F%20%E9%80%81%E8%BE%BE%E6%97%B6%E9%97%B4"))

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 将中文转UTF8的代码？谁有的帮帮我吧！

根本都不是你说的简单的UTF8编码问题，人家是加密计算，下面的是UTF8编码转化函数

Private Function convert_UTF8(ByVal str As String) As String

Dim byt() As Byte = System.Text.Encoding.GetEncoding("Gb2312").GetBytes(str)

Return System.Text.Encoding.UTF8.GetString(byt)

End Function

vb UTF-8汉字转十六进制的问题?

vb内使用unicode,在转换字符串只需要把字符串赋值给字节数组就可以了.但vb6函数不能指定编码形式.不是unicode编码,就是ASCII编码,使用StrConv函数带VbStrConv.Narrow参数返回的字符串转到字节后就是ASCII编码的.要使用其他编码的使用API.VB.net可以使用system.text.encoding.UTF-8.GetBytes()方法获取十六进制编码