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asp,你就只能等着微软给你解决,它不乐意你就只好悲催。而且asp跑在windows服务器上,windows服务器跟linux比起来简直弱爆了!xbm|考证码这个程序次要是师长教师成一个随机数,然后依据天生的随机数经由变更后作为XBM图片的内容,最初显现这个图片.考证时中要猎取输出的数字和Session("validatecode")对照,假如相称则经由过程考证(还要注重一下比拟较的两数据的范例坚持分歧)。
怎样显现天生的图片呢?<imgsrc="xbm.asp"></img>
关于XBM图的格局信息,看这里
http://www.zdnet.com.cn/developer/tech/story/0,2000081602,39134972,00.htm
xbm.asp的代码以下
程序代码:
<!--#includefile="numcode.asp"-->
<%
开启缓冲
Response.Buffer=True
WithResponse
.Expires=-1
.AddHeader"Pragma","no-cache"
.AddHeader"cache-ctrol","no-cache"
EndWith
Dimnum
Randomize
num=Int(7999*Rnd+2000)
Session("validateCode")=num
DimImage
DimWidth,Height
Dimdigtal
DimLength
Dimsort
Dimhc
Length=4
hc=chr(13)&chr(10)
Redimsort(Length)
digital=""
ForI=1ToLength-Len(num)
digital=digital&"0"
Next
ForI=1ToLen(num)
digital=digital&Mid(num,I,1)
Next
ForI=1ToLen(digital)
sort(I)=Mid(digital,I,1)
Next
Width=8*Len(digital)
Height=10
Response.ContentType="image/x-xbitmap"
Image="#definecounter_width"&Width&hc
Image=Image&"#definecounter_height"&Height&hc
Image=Image&"staticunsignedcharcounter_bits[]={"&hc
ForI=1ToHeight
ForJ=1ToLength
Image=Image&a(sort(J),I)&","
Next
Next
Image=Left(Image,Len(Image)-1)
Image=Image&"};"&hc
Response.WriteImage
%>
Numcode.asp的代码以下:
程序代码:
<%
Dima(10,10)
a(0,1)="0x3c"数字0
a(0,2)="0x66"
a(0,3)="0xc3"
a(0,4)="0xc3"
a(0,5)="0xc3"
a(0,6)="0xc3"
a(0,7)="0xc3"
a(0,8)="0xc3"
a(0,9)="0x66"
a(0,10)="0x3c"
a(1,1)="0x18"数字1
a(1,2)="0x1c"
a(1,3)="0x18"
a(1,4)="0x18"
a(1,5)="0x18"
a(1,6)="0x18"
a(1,7)="0x18"
a(1,8)="0x18"
a(1,9)="0x18"
a(0,10)="0x7e"
a(2,1)="0x3c"数字2
a(2,2)="0x66"
a(2,3)="0x60"
a(2,4)="0x60"
a(2,5)="0x30"
a(2,6)="0x18"
a(2,7)="0x0c"
a(2,8)="0x06"
a(2,9)="0x06"
a(2,10)="0x7e"
a(3,1)="0x3c"数字3
a(3,2)="0x66"
a(3,3)="0xc0"
a(3,4)="0x60"
a(3,5)="0x1c"
a(3,6)="0x60"
a(3,7)="0xc0"
a(3,8)="0xc0"
a(3,9)="0x66"
a(3,10)="0x38"
a(4,1)="0x38"数字4
a(4,2)="0x3c"
a(4,3)="0x36"
a(4,4)="0x33"
a(4,5)="0x33"
a(4,6)="0x33"
a(4,7)="0xff"
a(4,8)="0x30"
a(4,9)="0x30"
a(4,10)="0xfe"
a(5,1)="0xfe"数字5
a(5,2)="0xfe"
a(5,3)="0x06"
a(5,4)="0x06"
a(5,5)="0x3e"
a(5,6)="0x60"
a(5,7)="0xc0"
a(5,8)="0xc3"
a(5,9)="0x66"
a(5,10)="0x3c"
a(6,1)="0x60"数字6asp,你就只能等着微软给你解决,它不乐意你就只好悲催。而且asp跑在windows服务器上,windows服务器跟linux比起来简直弱爆了! |
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