asp 编码解码函数

< %
function  encode(soStr)
  for  i = 1   to   len (soStr)         
  TempNum = hex ( asc ( mid (soStr,i, 1 )))  
   if   len (TempNum) = 4   then
   encode = encode  &   " % " &   left ( cstr (TempNum), 2 )  &   " % " &   right ( cstr (TempNum), 2 )
   else
    Randomize
   encode = encode  & " % " &   chr ( 72 + int ( rnd * 18 )) &   chr ( 72 + int ( rnd * 18 ))  &   " % "   &   cstr (TempNum)
   end   if
  next
end function

function  decode(x)
 x = replace (x, " % " , "" )               
  for  i = 1   to   len (x) 
   if   asc ( mid (x,i, 1 )) >= 72   then
   x = replace (x, mid (x,i, 1 ), " 0 " )
   end   if
  next
  for  i = 1   to   len (x) step  4
  decode = decode &   chr ( int ( " &H "   &   mid (x,i, 4 ))) 
  next
end function
% >