杭州安利:谁知道条形码 是如何编制出来的吗？哪里可以找到？谢谢

你可以看一下演示
http://www.dq3s.com/goods_show.asp?id=28
是EAN13标准的条形码

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
end if

response.write "<div style='position:absolute;left:"&(x-1)*cWidth+30&"px;top:5px;width:"&cWidth&"px;height:"&cHeight+5+sh&"px;background:"&bColor&";'></div>"
next
'加入可读数字标签
response.write "<div style='position:absolute;left:16px;top:"&cHeight+10&"px;background:"&bg&";color:"&fg&";font:12px Verdana;'>"&left(code,1)&"</div>"
for x=1 to 6
response.write "<div style='position:absolute;left:"&(x*7+2)*cWidth+22&"px;top:"&cHeight+10&"px;background:"&bg&";color:"&fg&";font:12px Verdana;'>"&mid(code,x+1,1)&"</div>"
response.write "<div style='position:absolute;left:"&(x*7+47)*cWidth+24&"px;top:"&cHeight+10&"px;background:"&bg&";color:"&fg&";font:12px Verdana;'>"&mid(code,x+7,1)&"</div>"
next
' response.write "<div style='position:absolute; left:30px;top:"&cHeight+25&"px;width:"&cWidth*95&"px;height:10px;text-align:center;background:#ffffff;border:solid 1px #e5e5e5;font:9px verdana;'>© 2005 by 7th. </div>"
response.write "</div>"
End Function