vb.net字符编码转换,vbs编码转换

vb.net中string 转 unicode 编码

Unicode编码是一个数组，其中每个元素代表一个位码，还有ASCII和UTF8两种编码格式。

Unicode：

Dim bytes() As Byte() = System.Text.Encoding.Unicode.GetBytes("字符串")

ASCII：

Dim bytes() As Byte() = System.Text.Encoding.ASCII.GetBytes("字符串")

UTF8：

Dim bytes() As Byte() = System.Text.Encoding.UTF8.GetBytes("字符串")

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

'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

如何将VB.NET字符串转换成字节数组

本文介绍了各种编码类型，然后讨论了将字符串转换成字节数组的方法。编码类型用二进制形式描述一个字符串变量有很多种方式。用来实现该功能的编码对象依赖于你选择的编码。下面是程序开发人员经常使用的编码类型：ASCII：将字符串中的每个字符使用7个比特编码。这种编码类型不能包含扩展的Uincode字符。Full Unicode（UTF-16）：将字符串中的每个字符使用16个比特编码。这种情况下对每个字符一个字节数组含有两个字节。UTF-7：对于普通的ASCII字符使用7比特编码，对于扩展字符使用多个7比特对编码。这种编码类型最常用于7比特协议中如mail等。UTF-8：对于普通的ASCII字符使用8比特编码，对于扩展字符使用多个8比特对编码。这种情况下对每个字符一个字节数组包含一个字节。

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?

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。