本文給你一些很使用的代碼，可以在ASP中進行轉碼。其中包括UTF8 GB2312 二進制十進制代碼十六進制。
'UTF轉GB---將UTF8編碼文字轉換為GB編碼文字
function UTF2GB(UTFStr) for Dig=1 to len(UTFStr)
'如果UTF8編碼文字以%開頭則進行轉換
if mid(UTFStr,Dig,1)=% then
'UTF8編碼文字大於8則轉換為漢字
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
end function
'UTF8編碼文字將轉換為漢字
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
'二進制代碼轉換為十六進制代碼
unction c2to16(x)
i=1
for i=1 to len(x) step 4
c2to16=c2to16 & hex(c2to10(mid(x,i,4)))
next
end function
'二進制代碼轉換為十進制代碼
function c2to10(x)
c2to10=0
if x=0 then exit function
i=0
for i= 0 to len(x) -1
if mid(x,len(x)-i,1)=1 then c2to10=c2to10+2^(i)
next
end function
'十六進制代碼轉換為二進制代碼
function c16to2(x)
i=0
for i=1 to len(trim(x))
tempstr= c10to2(cint(int(&h & mid(x,i,1))))
do while len(tempstr)<4
tempstr=0 & tempstr
loop
c16to2=c16to2 & tempstr
next
end function
'十進制代碼轉換為二進制代碼
function c10to2(x)
mysign=sgn(x)
x=abs(x)
DigS=1
do
if x<2^DigS then
exit do
else
DigS=DigS+1
end if
loop
tempnum=x
i=0
for i=DigS to 1 step-1
if tempnum>=2^(i-1) then
tempnum=tempnum-2^(i-1)
c10to2=c10to2 & 1
else
c10to2=c10to2 & 0
end if
next
if mysign=-1 then c10to2=- & c10to2
end function
'GB轉UTF8--將GB編碼文字轉換為UTF8編碼文字
Function toUTF8(szInput)
Dim wch, uch, szRet
Dim x
Dim nAsc, nAsc2, nAsc3
'如果輸入參數為空，則退出函數
If szInput = Then
toUTF8 = szInput
Exit Function
End If
'開始轉換
For x = 1 To Len(szInput)
'利用mid函數分拆GB編碼文字
wch = Mid(szInput, x, 1)
'利用ascW函數返回每一個GB編碼文字的Unicode字符代碼
'注：asc函數返回的是ANSI 字符代碼，注意區別
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編碼文字的Unicode字符代碼在0800 - FFFF之間採用三字節模版
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
'GB轉unicode---將GB編碼文字轉換為unicode編碼文字
function chinese2unicode(Str)
dim i
dim Str_one
dim Str_unicode
if(isnull(Str)) then
exit function
end if
for i=1 to len(Str)
Str_one=Mid(Str,i,1)
Str_unicode=Str_unicode&chr(38)
Str_unicode=Str_unicode&chr(35)
Str_unicode=Str_unicode&chr(120)
Str_unicode=Str_unicode& Hex(ascw(Str_one))
Str_unicode=Str_unicode&chr(59)
next
chinese2unicode=Str_unicode
end function
'URL解碼
Function URLDecode(enStr)
dim deStr
dim c,i,v
deStr=
for i=1 to len(enStr)
c=Mid(enStr,i,1)
if c=% then
v=eval(&h+Mid(enStr,i+1,2))
if v<128 then
deStr=deStr&chr(v)
i=i+2
else
if isvalidhex(mid(enstr,i,3)) then
if isvalidhex(mid(enstr,i+3,3)) then
v=eval(&h+Mid(enStr,i+1,2)+Mid(enStr,i+4,2))
deStr=deStr&chr(v)
i=i+5
else
v=eval(&h+Mid(enStr,i+1,2)+cstr(hex(asc(Mid(enStr,i+3,1)))))
deStr=deStr&chr(v)
i=i+3
end if
else
destr=destr&c
end if
end if
else
if c=+ then
deStr=deStr&
else
deStr=deStr&c
end if
end if
next
URLDecode=deStr
end function
'判斷是否為有效的十六進制代碼
function isvalidhex(str)
dim c
isvalidhex=true
str=ucase(str)
if len(str)<>3 then isvalidhex=false:exit function
if left(str,1)<>% then isvalidhex=false:exit function
c=mid(str,2,1)
if not (((c>=0) and (c<=9)) or ((c>=A) and (c<=Z))) then isvalidhex=false:exit function
c=mid(str,3,1)
if not (((c>=0) and (c<=9)) or ((c>=A) and (c<=Z))) then isvalidhex=false:exit function
end function