ASP_UTF8与GB2312的转换

1，将UTF8编码文字将转换为汉字

function ConvChinese(x)
    A=split(mid(x,2),"%")
    i=0
    j=0
   for i=0 to ubound(A)
      A(i)=c16to2(A(i))
   next
   for i=0 to ubound(A)-1
     DigS=instr(A(i),"0")
     Unicode=""
     for j=1 to DigS-1
       if j=1 then
         A(i)=right(A(i),len(A(i))-DigS)
         Unicode=Unicode & A(i)
       else
          i=i+1
          A(i)=right(A(i),len(A(i))-2)
          Unicode=Unicode & A(i)
       end if
     next
     if len(c2to16(Unicode))=4 then
        ConvChinese=ConvChinese & chrw(int("&H" & c2to16(Unicode)))
     else
        ConvChinese=ConvChinese & chr(int("&H" & c2to16(Unicode)))
     end if
   next
end function

2，将GB2312转UTF8的asp代码 将GB编码文字转换为UTF8编码文字
Function toUTF8(szInput)
     Dim wch, uch, szRet
     Dim x
     Dim nAsc, nAsc2, nAsc3
     '如果输入参数为空，则退出函数
     If szInput = "" Then
         toUTF8 = szInput
         Exit Function
     End If
     '开始转换
      For x = 1 To Len(szInput)
         '利用mid函数分拆GB编码文字
         wch = Mid(szInput, x, 1)
         '利用ascW函数返回每一个GB编码文字的Unicode字符代码
         '注：asc函数返回的是ANSI 字符代码，注意区别
         nAsc = AscW(wch)
         If nAsc < 0 Then nAsc = nAsc + 65536
     
         If (nAsc And &HFF80) = 0 Then
             szRet = szRet & wch
         Else
             If (nAsc And &HF000) = 0 Then
                 uch = "%" & Hex(((nAsc \ 2 ^ 6)) Or &HC0) & Hex(nAsc And &H3F Or &H80)
                 szRet = szRet & uch
             Else
                'GB编码文字的Unicode字符代码在0800 - FFFF之间采用三字节模版
                 uch = "%" & Hex((nAsc \ 2 ^ 12) Or &HE0) & "%" & _
                             Hex((nAsc \ 2 ^ 6) And &H3F Or &H80) & "%" & _
                             Hex(nAsc And &H3F Or &H80)
                 szRet = szRet & uch
             End If
         End If
     Next          
     toUTF8 = szRet
End Function

3，UTF转GB2312   将UTF8编码文字转换为GB编码文字的asp代码
function UTF2GB(UTFStr)
for Dig=1 to len(UTFStr)
   '如果UTF8编码文字以%开头则进行转换
   if mid(UTFStr,Dig,1)="%" then
      'UTF8编码文字大于8则转换为汉字
     if len(UTFStr) >= Dig+8 then
        GBStr=GBStr & ConvChinese(mid(UTFStr,Dig,9))
        Dig=Dig+8
     else
       GBStr=GBStr & mid(UTFStr,Dig,1)
     end if
   else
      GBStr=GBStr & mid(UTFStr,Dig,1)
   end if
next
UTF2GB=GBStr
'老吧提供
end function