用asp实现无组件生成验证码的方法2种
程序员文章站
2022-10-10 18:54:59
无组件生成验证码-gif格式 复制代码 代码如下:<% option explicit ' 显示声明 class com_gi...
无组件生成验证码-gif格式
<%
option explicit ' 显示声明
class com_gifcode_class
'''''''''''''''''''''''''''''''''''''''''''''
' author: layen support@ssaw.net 84815733(qq)
' thanks: laomi, laomiao, netrube
' 2006-01-02
'''''''''''''''''''''''''''''''''''''''''''''
public noisy, count, width, height, angle, offset, border
private graph(), margin(3)
private sub class_initialize()
randomize
noisy = 16 ' 干扰点出现的概率
count = 4 ' 字符数量
width = 80 ' 图片宽度
height = 20 ' 图片高度
angle = 2 ' 角度随机变化量
offset = 20 ' 偏移随机变化量
border = 1 ' 边框大小
end sub
public function create()
const ccharset = "123456789"
dim i, x, y
dim vvalidcode : vvalidcode = ""
dim vindex
redim graph(width-1, height-1)
for i = 0 to count - 1
vindex = int(rnd * len(ccharset))
vvalidcode = vvalidcode + mid(ccharset, vindex+1 , 1)
setdraw vindex, i
next
create = vvalidcode
end function
sub setdot(px, py)
if px * (width-px-1) >= 0 and py * (height-py-1) >= 0 then
graph(px, py) = 1
end if
end sub
public sub setdraw(pindex, pnumber)
' 字符数据
dim dotdata(8)
dotdata(0) = array(30, 15, 50, 1, 50, 100)
dotdata(1) = array(1 ,34 ,30 ,1 ,71, 1, 100, 34, 1, 100, 93, 100, 100, 86)
dotdata(2) = array(1, 1, 100, 1, 42, 42, 100, 70, 50, 100, 1, 70)
dotdata(3) = array(100, 73, 6, 73, 75, 6, 75, 100)
dotdata(4) = array(100, 1, 1, 1, 1, 50, 50, 35, 100, 55, 100, 80, 50, 100, 1, 95)
dotdata(5) = array(100, 20, 70, 1, 20, 1, 1, 30, 1, 80, 30, 100, 70, 100, 100, 80, 100, 60, 70, 50, 30, 50, 1, 60)
dotdata(6) = array(6, 26, 6, 6, 100, 6, 53, 100)
dotdata(7) = array(100, 30, 100, 20, 70, 1, 30, 1, 1, 20, 1, 30, 100, 70, 100, 80, 70, 100, 30, 100, 1, 80, 1, 70, 100, 30)
dotdata(8) = array(1, 80, 30, 100, 80, 100, 100, 70, 100, 20, 70, 1, 30, 1, 1, 20, 1, 40, 30, 50, 70, 50, 100, 40)
dim vextent : vextent = width / count
margin(0) = border + vextent * (rnd * offset) / 100 + margin(1)
margin(1) = vextent * (pnumber + 1) - border - vextent * (rnd * offset) / 100
margin(2) = border + height * (rnd * offset) / 100
margin(3) = height - border - height * (rnd * offset) / 100
dim vstartx, vendx, vstarty, vendy
dim vwidth, vheight, vdx, vdy, vdeltat
dim vangle, vlength
vwidth = int(margin(1) - margin(0))
vheight = int(margin(3) - margin(2))
' 起始坐标
vstartx = int((dotdata(pindex)(0)-1) * vwidth / 100)
vstarty = int((dotdata(pindex)(1)-1) * vheight / 100)
dim i, j
for i = 1 to ubound(dotdata(pindex), 1)/2
if dotdata(pindex)(2*i-2) <> 0 and dotdata(pindex)(2*i) <> 0 then
' 终点坐标
vendx = (dotdata(pindex)(2*i)-1) * vwidth / 100
vendy = (dotdata(pindex)(2*i+1)-1) * vheight / 100
' 横向差距
vdx = vendx - vstartx
' 纵向差距
vdy = vendy - vstarty
' 倾斜角度
if vdx = 0 then
vangle = sgn(vdy) * 3.14/2
else
vangle = atn(vdy / vdx)
end if
' 两坐标距离
if sin(vangle) = 0 then
vlength = vdx
else
vlength = vdy / sin(vangle)
end if
' 随机转动角度
vangle = vangle + (rnd - 0.5) * 2 * angle * 3.14 * 2 / 100
vdx = int(cos(vangle) * vlength)
vdy = int(sin(vangle) * vlength)
if abs(vdx) > abs(vdy) then vdeltat = abs(vdx) else vdeltat = abs(vdy)
for j = 1 to vdeltat
setdot margin(0) + vstartx + j * vdx / vdeltat, margin(2) + vstarty + j * vdy / vdeltat
next
vstartx = vstartx + vdx
vstarty = vstarty + vdy
end if
next
end sub
public sub output()
response.expires = -9999
response.addheader "pragma", "no-cache"
response.addheader "cache-ctrol", "no-cache"
response.contenttype = "image/gif"
' 文件类型
response.binarywrite chrb(asc("g")) & chrb(asc("i")) & chrb(asc("f"))
' 版本信息
response.binarywrite chrb(asc("8")) & chrb(asc("9")) & chrb(asc("a"))
' 逻辑屏幕宽度
response.binarywrite chrb(width mod 256) & chrb((width \ 256) mod 256)
' 逻辑屏幕高度
response.binarywrite chrb(height mod 256) & chrb((height \ 256) mod 256)
response.binarywrite chrb(128) & chrb(0) & chrb(0)
' 全局颜色列表
response.binarywrite chrb(255) & chrb(255) & chrb(255)
response.binarywrite chrb(0) & chrb(85) & chrb(255)
' 图象标识符
response.binarywrite chrb(asc(","))
response.binarywrite chrb(0) & chrb(0) & chrb(0) & chrb(0)
' 图象宽度
response.binarywrite chrb(width mod 256) & chrb((width \ 256) mod 256)
' 图象高度
response.binarywrite chrb(height mod 256) & chrb((height \ 256) mod 256)
response.binarywrite chrb(0) & chrb(7) & chrb(255)
dim x, y, i : i = 0
for y = 0 to height - 1
for x = 0 to width - 1
if rnd < noisy / 100 then
response.binarywrite chrb(1-graph(x, y))
else
if x * (x-width) = 0 or y * (y-height) = 0 then
response.binarywrite chrb(graph(x, y))
else
if graph(x-1, y) = 1 or graph(x, y) or graph(x, y-1) = 1 then
response.binarywrite chrb(1)
else
response.binarywrite chrb(0)
end if
end if
end if
if (y * width + x + 1) mod 126 = 0 then
response.binarywrite chrb(128)
i = i + 1
end if
if (y * width + x + i + 1) mod 255 = 0 then
if (width*height - y * width - x - 1) > 255 then
response.binarywrite chrb(255)
else
response.binarywrite chrb(width * height mod 255)
end if
end if
next
next
response.binarywrite chrb(128) & chrb(0) & chrb(129) & chrb(0) & chrb(59)
end sub
end class
dim mcode
set mcode = new com_gifcode_class
session("getcode") = mcode.create()
mcode.output()
set mcode = nothing
%>
无组件生成验证码-bmp格式
call com_creatvalidcode("validcode")
sub com_creatvalidcode(psn)
'author: layen
'qq: 84815733
'e-mail: support@ssaw.net
' 禁止缓存
response.expires = -9999
response.addheader "pragma","no-cache"
response.addheader "cache-ctrol","no-cache"
response.contenttype = "image/bmp"
randomize
dim i, ii, iii
const codds = 8 ' 杂点出现的机率
const camount = 36 ' 文字数量
const ccode = "0123456789abcdefghijklmnopqrstuvwxyz"
' 颜色的数据(字符，背景)
dim vcolordata(1)
vcolordata(0) = chrb(0) & chrb(0) & chrb(0) ' 蓝0，绿0，红0（黑色）
vcolordata(1) = chrb(250) & chrb(236) & chrb(211) ' 蓝250，绿236，红211（浅蓝色）
' 随机产生字符
dim vcode(4), vcodes
for i = 0 to 3
vcode(i) = int(rnd * camount)
vcodes = vcodes & mid(ccode, vcode(i) + 1, 1)
next
session(psn) = vcodes '记录入session
' 字符的数据
dim vnumberdata(35)
vnumberdata(0) = "1110000111110111101111011110111101001011110100101111
010010111101001011110111101111011110111110000111"
vnumberdata(1) = "1111011111110001111111110111111111011111111101111111
110111111111011111111101111111110111111100000111"
vnumberdata(2) = "1110000111110111101111011110111111111011111111011111
111011111111011111111011111111011110111100000011"
vnumberdata(3) = "1110000111110111101111011110111111110111111100111111
111101111111111011110111101111011110111110000111"
vnumberdata(4) = "1111101111111110111111110011111110101111110110111111
011011111100000011111110111111111011111111000011"
vnumberdata(5) = "1100000011110111111111011111111101000111110011101111
111110111111111011110111101111011110111110000111"
vnumberdata(6) = "1111000111111011101111011111111101111111110100011111
001110111101111011110111101111011110111110000111"
vnumberdata(7) = "1100000011110111011111011101111111101111111110111111
110111111111011111111101111111110111111111011111"
vnumberdata(8) = "1110000111110111101111011110111101111011111000011111
101101111101111011110111101111011110111110000111"
vnumberdata(9) = "1110001111110111011111011110111101111011110111001111
100010111111111011111111101111011101111110001111"
vnumberdata(10) = "1111011111111101111111101011111110101111111010111111
101011111100000111110111011111011101111000100011"
vnumberdata(11) = "1000000111110111101111011110111101110111110000111111
011101111101111011110111101111011110111000000111"
vnumberdata(12) = "1110000011110111101110111110111011111111101111111110
111111111011111111101111101111011101111110001111"
vnumberdata(13) = "10000011111101110111110111101111011110111101111011110
11110111101111011110111101111011101111000001111"
vnumberdata(14) = "10000001111101111011110110111111011011111100001111110
11011111101101111110111111111011110111000000111"
vnumberdata(15) = "10000001111101111011110110111111011011111100001111110
11011111101101111110111111111011111111000111111"
vnumberdata(16) = "11100001111101110111101111011110111111111011111111101
11111111011100011101111011111011101111110001111"
vnumberdata(17) = "10001000111101110111110111011111011101111100000111110
11101111101110111110111011111011101111000100011"
vnumberdata(18) = "11000001111111011111111101111111110111111111011111111
10111111111011111111101111111110111111100000111"
vnumberdata(19) = "11100000111111101111111110111111111011111111101111111
11011111111101111111110111110111011111000011111"
vnumberdata(20) = "10001000111101110111110110111111010111111100011111110
10111111101101111110110111111011101111000100011"
vnumberdata(21) = "10001111111101111111110111111111011111111101111111110
11111111101111111110111111111011110111000000011"
vnumberdata(22) = "10001000111100100111110010011111001001111101010111110
10101111101010111110101011111010101111001010011"
vnumberdata(23) = "10001000111100110111110011011111010101111101010111110
10101111101100111110110011111011001111000110111"
vnumberdata(24) = "11100011111101110111101111101110111110111011111011101
11110111011111011101111101111011101111110001111"
vnumberdata(25) = "10000001111101111011110111101111011110111100000111110
11111111101111111110111111111011111111000111111"
vnumberdata(26) = "11100011111101110111101111101110111110111011111011101
11110111011111011101001101111011001111110001011"
vnumberdata(27) = "10000011111101110111110111011111011101111100001111110
10111111101101111110110111111011101111000110011"
vnumberdata(28) = "11100000111101111011110111101111011111111110011111111
11001111111111011110111101111011110111100000111"
vnumberdata(29) = "10000000111011011011111101111111110111111111011111111
10111111111011111111101111111110111111110001111"
vnumberdata(30) = "10001000111101110111110111011111011101111101110111110
11101111101110111110111011111011101111110001111"
vnumberdata(31) = "10001000111101110111110111011111011101111110101111111
01011111110101111111010111111110111111111011111"
vnumberdata(32) = "10010100111101010111110101011111010101111101010111110
01001111110101111111010111111101011111110101111"
vnumberdata(33) = "10001000111101110111111010111111101011111111011111111
10111111110101111111010111111011101111000100011"
vnumberdata(34) = "10001000111101110111110111011111101011111110101111111
10111111111011111111101111111110111111110001111"
vnumberdata(35) = "11000000111101110111111111011111111011111111101111111
10111111111011111111011111111101110111100000011"
' 输出图像文件头
response.binarywrite chrb(66) & chrb(77) & chrb(230) & chrb(4) & chrb(0) & chrb(0) & chrb(0) & chrb(0) &_
chrb(0) & chrb(0) & chrb(54) & chrb(0) & chrb(0) & chrb(0) & chrb(40) & chrb(0) &_
chrb(0) & chrb(0) & chrb(40) & chrb(0) & chrb(0) & chrb(0) & chrb(10) & chrb(0) &_
chrb(0) & chrb(0) & chrb(1) & chrb(0)
' 输出图像信息头
response.binarywrite chrb(24) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(176) & chrb(4) &_
chrb(0) & chrb(0) & chrb(18) & chrb(11) & chrb(0) & chrb(0) & chrb(18) & chrb(11) &_
chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) &_
chrb(0) & chrb(0)
for i = 9 to 0 step -1 ' 历经所有行
for ii = 0 to 3 ' 历经所有字
for iii = 1 to 10 ' 历经所有像素
' 逐行、逐字、逐像素地输出图像数据
if rnd * 99 + 1 < codds then ' 随机生成杂点
response.binarywrite vcolordata(0)
else
response.binarywrite vcolordata(mid(vnumberdata(vcode(ii)), i * 10 + iii, 1))
end if
next
next
next
end sub
复制代码 代码如下:
<%
option explicit ' 显示声明
class com_gifcode_class
'''''''''''''''''''''''''''''''''''''''''''''
' author: layen support@ssaw.net 84815733(qq)
' thanks: laomi, laomiao, netrube
' 2006-01-02
'''''''''''''''''''''''''''''''''''''''''''''
public noisy, count, width, height, angle, offset, border
private graph(), margin(3)
private sub class_initialize()
randomize
noisy = 16 ' 干扰点出现的概率
count = 4 ' 字符数量
width = 80 ' 图片宽度
height = 20 ' 图片高度
angle = 2 ' 角度随机变化量
offset = 20 ' 偏移随机变化量
border = 1 ' 边框大小
end sub
public function create()
const ccharset = "123456789"
dim i, x, y
dim vvalidcode : vvalidcode = ""
dim vindex
redim graph(width-1, height-1)
for i = 0 to count - 1
vindex = int(rnd * len(ccharset))
vvalidcode = vvalidcode + mid(ccharset, vindex+1 , 1)
setdraw vindex, i
next
create = vvalidcode
end function
sub setdot(px, py)
if px * (width-px-1) >= 0 and py * (height-py-1) >= 0 then
graph(px, py) = 1
end if
end sub
public sub setdraw(pindex, pnumber)
' 字符数据
dim dotdata(8)
dotdata(0) = array(30, 15, 50, 1, 50, 100)
dotdata(1) = array(1 ,34 ,30 ,1 ,71, 1, 100, 34, 1, 100, 93, 100, 100, 86)
dotdata(2) = array(1, 1, 100, 1, 42, 42, 100, 70, 50, 100, 1, 70)
dotdata(3) = array(100, 73, 6, 73, 75, 6, 75, 100)
dotdata(4) = array(100, 1, 1, 1, 1, 50, 50, 35, 100, 55, 100, 80, 50, 100, 1, 95)
dotdata(5) = array(100, 20, 70, 1, 20, 1, 1, 30, 1, 80, 30, 100, 70, 100, 100, 80, 100, 60, 70, 50, 30, 50, 1, 60)
dotdata(6) = array(6, 26, 6, 6, 100, 6, 53, 100)
dotdata(7) = array(100, 30, 100, 20, 70, 1, 30, 1, 1, 20, 1, 30, 100, 70, 100, 80, 70, 100, 30, 100, 1, 80, 1, 70, 100, 30)
dotdata(8) = array(1, 80, 30, 100, 80, 100, 100, 70, 100, 20, 70, 1, 30, 1, 1, 20, 1, 40, 30, 50, 70, 50, 100, 40)
dim vextent : vextent = width / count
margin(0) = border + vextent * (rnd * offset) / 100 + margin(1)
margin(1) = vextent * (pnumber + 1) - border - vextent * (rnd * offset) / 100
margin(2) = border + height * (rnd * offset) / 100
margin(3) = height - border - height * (rnd * offset) / 100
dim vstartx, vendx, vstarty, vendy
dim vwidth, vheight, vdx, vdy, vdeltat
dim vangle, vlength
vwidth = int(margin(1) - margin(0))
vheight = int(margin(3) - margin(2))
' 起始坐标
vstartx = int((dotdata(pindex)(0)-1) * vwidth / 100)
vstarty = int((dotdata(pindex)(1)-1) * vheight / 100)
dim i, j
for i = 1 to ubound(dotdata(pindex), 1)/2
if dotdata(pindex)(2*i-2) <> 0 and dotdata(pindex)(2*i) <> 0 then
' 终点坐标
vendx = (dotdata(pindex)(2*i)-1) * vwidth / 100
vendy = (dotdata(pindex)(2*i+1)-1) * vheight / 100
' 横向差距
vdx = vendx - vstartx
' 纵向差距
vdy = vendy - vstarty
' 倾斜角度
if vdx = 0 then
vangle = sgn(vdy) * 3.14/2
else
vangle = atn(vdy / vdx)
end if
' 两坐标距离
if sin(vangle) = 0 then
vlength = vdx
else
vlength = vdy / sin(vangle)
end if
' 随机转动角度
vangle = vangle + (rnd - 0.5) * 2 * angle * 3.14 * 2 / 100
vdx = int(cos(vangle) * vlength)
vdy = int(sin(vangle) * vlength)
if abs(vdx) > abs(vdy) then vdeltat = abs(vdx) else vdeltat = abs(vdy)
for j = 1 to vdeltat
setdot margin(0) + vstartx + j * vdx / vdeltat, margin(2) + vstarty + j * vdy / vdeltat
next
vstartx = vstartx + vdx
vstarty = vstarty + vdy
end if
next
end sub
public sub output()
response.expires = -9999
response.addheader "pragma", "no-cache"
response.addheader "cache-ctrol", "no-cache"
response.contenttype = "image/gif"
' 文件类型
response.binarywrite chrb(asc("g")) & chrb(asc("i")) & chrb(asc("f"))
' 版本信息
response.binarywrite chrb(asc("8")) & chrb(asc("9")) & chrb(asc("a"))
' 逻辑屏幕宽度
response.binarywrite chrb(width mod 256) & chrb((width \ 256) mod 256)
' 逻辑屏幕高度
response.binarywrite chrb(height mod 256) & chrb((height \ 256) mod 256)
response.binarywrite chrb(128) & chrb(0) & chrb(0)
' 全局颜色列表
response.binarywrite chrb(255) & chrb(255) & chrb(255)
response.binarywrite chrb(0) & chrb(85) & chrb(255)
' 图象标识符
response.binarywrite chrb(asc(","))
response.binarywrite chrb(0) & chrb(0) & chrb(0) & chrb(0)
' 图象宽度
response.binarywrite chrb(width mod 256) & chrb((width \ 256) mod 256)
' 图象高度
response.binarywrite chrb(height mod 256) & chrb((height \ 256) mod 256)
response.binarywrite chrb(0) & chrb(7) & chrb(255)
dim x, y, i : i = 0
for y = 0 to height - 1
for x = 0 to width - 1
if rnd < noisy / 100 then
response.binarywrite chrb(1-graph(x, y))
else
if x * (x-width) = 0 or y * (y-height) = 0 then
response.binarywrite chrb(graph(x, y))
else
if graph(x-1, y) = 1 or graph(x, y) or graph(x, y-1) = 1 then
response.binarywrite chrb(1)
else
response.binarywrite chrb(0)
end if
end if
end if
if (y * width + x + 1) mod 126 = 0 then
response.binarywrite chrb(128)
i = i + 1
end if
if (y * width + x + i + 1) mod 255 = 0 then
if (width*height - y * width - x - 1) > 255 then
response.binarywrite chrb(255)
else
response.binarywrite chrb(width * height mod 255)
end if
end if
next
next
response.binarywrite chrb(128) & chrb(0) & chrb(129) & chrb(0) & chrb(59)
end sub
end class
dim mcode
set mcode = new com_gifcode_class
session("getcode") = mcode.create()
mcode.output()
set mcode = nothing
%>
无组件生成验证码-bmp格式
复制代码 代码如下:
call com_creatvalidcode("validcode")
sub com_creatvalidcode(psn)
'author: layen
'qq: 84815733
'e-mail: support@ssaw.net
' 禁止缓存
response.expires = -9999
response.addheader "pragma","no-cache"
response.addheader "cache-ctrol","no-cache"
response.contenttype = "image/bmp"
randomize
dim i, ii, iii
const codds = 8 ' 杂点出现的机率
const camount = 36 ' 文字数量
const ccode = "0123456789abcdefghijklmnopqrstuvwxyz"
' 颜色的数据(字符，背景)
dim vcolordata(1)
vcolordata(0) = chrb(0) & chrb(0) & chrb(0) ' 蓝0，绿0，红0（黑色）
vcolordata(1) = chrb(250) & chrb(236) & chrb(211) ' 蓝250，绿236，红211（浅蓝色）
' 随机产生字符
dim vcode(4), vcodes
for i = 0 to 3
vcode(i) = int(rnd * camount)
vcodes = vcodes & mid(ccode, vcode(i) + 1, 1)
next
session(psn) = vcodes '记录入session
' 字符的数据
dim vnumberdata(35)
vnumberdata(0) = "1110000111110111101111011110111101001011110100101111
010010111101001011110111101111011110111110000111"
vnumberdata(1) = "1111011111110001111111110111111111011111111101111111
110111111111011111111101111111110111111100000111"
vnumberdata(2) = "1110000111110111101111011110111111111011111111011111
111011111111011111111011111111011110111100000011"
vnumberdata(3) = "1110000111110111101111011110111111110111111100111111
111101111111111011110111101111011110111110000111"
vnumberdata(4) = "1111101111111110111111110011111110101111110110111111
011011111100000011111110111111111011111111000011"
vnumberdata(5) = "1100000011110111111111011111111101000111110011101111
111110111111111011110111101111011110111110000111"
vnumberdata(6) = "1111000111111011101111011111111101111111110100011111
001110111101111011110111101111011110111110000111"
vnumberdata(7) = "1100000011110111011111011101111111101111111110111111
110111111111011111111101111111110111111111011111"
vnumberdata(8) = "1110000111110111101111011110111101111011111000011111
101101111101111011110111101111011110111110000111"
vnumberdata(9) = "1110001111110111011111011110111101111011110111001111
100010111111111011111111101111011101111110001111"
vnumberdata(10) = "1111011111111101111111101011111110101111111010111111
101011111100000111110111011111011101111000100011"
vnumberdata(11) = "1000000111110111101111011110111101110111110000111111
011101111101111011110111101111011110111000000111"
vnumberdata(12) = "1110000011110111101110111110111011111111101111111110
111111111011111111101111101111011101111110001111"
vnumberdata(13) = "10000011111101110111110111101111011110111101111011110
11110111101111011110111101111011101111000001111"
vnumberdata(14) = "10000001111101111011110110111111011011111100001111110
11011111101101111110111111111011110111000000111"
vnumberdata(15) = "10000001111101111011110110111111011011111100001111110
11011111101101111110111111111011111111000111111"
vnumberdata(16) = "11100001111101110111101111011110111111111011111111101
11111111011100011101111011111011101111110001111"
vnumberdata(17) = "10001000111101110111110111011111011101111100000111110
11101111101110111110111011111011101111000100011"
vnumberdata(18) = "11000001111111011111111101111111110111111111011111111
10111111111011111111101111111110111111100000111"
vnumberdata(19) = "11100000111111101111111110111111111011111111101111111
11011111111101111111110111110111011111000011111"
vnumberdata(20) = "10001000111101110111110110111111010111111100011111110
10111111101101111110110111111011101111000100011"
vnumberdata(21) = "10001111111101111111110111111111011111111101111111110
11111111101111111110111111111011110111000000011"
vnumberdata(22) = "10001000111100100111110010011111001001111101010111110
10101111101010111110101011111010101111001010011"
vnumberdata(23) = "10001000111100110111110011011111010101111101010111110
10101111101100111110110011111011001111000110111"
vnumberdata(24) = "11100011111101110111101111101110111110111011111011101
11110111011111011101111101111011101111110001111"
vnumberdata(25) = "10000001111101111011110111101111011110111100000111110
11111111101111111110111111111011111111000111111"
vnumberdata(26) = "11100011111101110111101111101110111110111011111011101
11110111011111011101001101111011001111110001011"
vnumberdata(27) = "10000011111101110111110111011111011101111100001111110
10111111101101111110110111111011101111000110011"
vnumberdata(28) = "11100000111101111011110111101111011111111110011111111
11001111111111011110111101111011110111100000111"
vnumberdata(29) = "10000000111011011011111101111111110111111111011111111
10111111111011111111101111111110111111110001111"
vnumberdata(30) = "10001000111101110111110111011111011101111101110111110
11101111101110111110111011111011101111110001111"
vnumberdata(31) = "10001000111101110111110111011111011101111110101111111
01011111110101111111010111111110111111111011111"
vnumberdata(32) = "10010100111101010111110101011111010101111101010111110
01001111110101111111010111111101011111110101111"
vnumberdata(33) = "10001000111101110111111010111111101011111111011111111
10111111110101111111010111111011101111000100011"
vnumberdata(34) = "10001000111101110111110111011111101011111110101111111
10111111111011111111101111111110111111110001111"
vnumberdata(35) = "11000000111101110111111111011111111011111111101111111
10111111111011111111011111111101110111100000011"
' 输出图像文件头
response.binarywrite chrb(66) & chrb(77) & chrb(230) & chrb(4) & chrb(0) & chrb(0) & chrb(0) & chrb(0) &_
chrb(0) & chrb(0) & chrb(54) & chrb(0) & chrb(0) & chrb(0) & chrb(40) & chrb(0) &_
chrb(0) & chrb(0) & chrb(40) & chrb(0) & chrb(0) & chrb(0) & chrb(10) & chrb(0) &_
chrb(0) & chrb(0) & chrb(1) & chrb(0)
' 输出图像信息头
response.binarywrite chrb(24) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(176) & chrb(4) &_
chrb(0) & chrb(0) & chrb(18) & chrb(11) & chrb(0) & chrb(0) & chrb(18) & chrb(11) &_
chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) & chrb(0) &_
chrb(0) & chrb(0)
for i = 9 to 0 step -1 ' 历经所有行
for ii = 0 to 3 ' 历经所有字
for iii = 1 to 10 ' 历经所有像素
' 逐行、逐字、逐像素地输出图像数据
if rnd * 99 + 1 < codds then ' 随机生成杂点
response.binarywrite vcolordata(0)
else
response.binarywrite vcolordata(mid(vnumberdata(vcode(ii)), i * 10 + iii, 1))
end if
next
next
next
end sub
上一篇： html页面head区域的编码书写规范
下一篇： css支持标准的图片垂直居中