生成EAN13标准的条形码的ASP代码实例

<title>条形码生成</title>
<%
Rem =================================================================
Rem = 函数:ean13
Rem = 说明:生成EAN13标准的条形码,有实例（ASP代码）
Rem = 版本:1.0.0
Rem = 作者:第七种直角（7th/semico）
Rem = Date:2005-08-08 11:57:06
Rem = QQ:11110785
Rem = QQ群：3773360
Rem = 适用:按照需要生成EAN13标准的条形码
Rem =================================================================
Function ean13(code,w,h)
 Dim Guide,Dict,Lencode,Rencode,cStart,cMid,cEnd,Barcode,Lmethod
 Guide = array("AAAAAA","AABABB","AABBAB","ABAABB","ABBAAB","ABBBAA","ABABAB","ABABBA","ABBABA")

 Set Dict = CreateObject("Scripting.Dictionary")
 Dict.Add "A", "0001101001100100100110111101010001101100010101111011101101101110001011"
 Dict.Add "B", "0100111011001100110110100001001110101110010000101001000100010010010111"

 Rencode = array("1110010","1100110","1101100","1000010","1011100","1001110","1010000","1000100","1001000","1110100")

 cStart="101"
 cMid="01010"
 cEnd="101"

 if w<2 then w=2
 if h<20 then h=20
 cWidth=w '条码单元宽度
 cHeight=h '条码高度

 '检验条码是否符合标准
 if len(code)<>13 then response.write "必须为13位!":response.end

 for i=1 to 12
  if IsNumeric(mid(code,i,1)) then
   if i mod 2 then
    rsum=rsum+int(mid(code,i,1))
   else
    lsum=lsum+int(mid(code,i,1))
   end if
  else
   response.write "必须为数字码!":response.end
  end if
 next
 if 10-((lsum*3+rsum) mod 10) <> int(right(code,1)) then response.write "此条码错误!":response.end

 

 '转换条码
 Barcode=cStart
 Lmethod=left(code,1)
 'if Lmethod=0 then Lmethod=1
 for i=2 to 7
  barcode = barcode & mid(Dict(Mid(Guide(Lmethod-1),i-1,1)),(7*mid(code,i,1)+1),7)
 next
 barcode=barcode & cMid
 for i=8 to 13
  barcode = barcode & Rencode(mid(code,i,1))
 next
 barcode=barcode & cEnd

 fg="#000000" '条码前景色
 bg="#ffffff" '条码背景色
 response.write "<div style='position:absolute;width:"&cWidth*95+60&"px; height:"&cHeight+30&"px; background:"&bg&";'>"
 '绘制条码
 for x=1 to len(barcode)
  if x<5 or x>92 or (x>46 and x<51)then
   sh=10
  else
   sh=0
  end if

  if mid(barcode,x,1)="1" then
   bColor=fg
  else
   bColor=bg