<%
1、'UTF转GB---将UTF8编码文字转换为GB编码文字
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
end function

'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

'二进制代码转换为十六进制代码
function c2to16(x)
   i=1
   for i=1 to len(x) step 4
      c2to16=c2to16 & hex(c2to10(mid(x,i,4)))
   next
end function

'二进制代码转换为十进制代码
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

'十六进制代码转换为二进制代码
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

'十进制代码转换为二进制代码
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