用ASP将页面中的电话号码生成图片格式

作者：佚名来源：不详整理日期：2007-11-6

将页面中的电话号码生成图片格式。

<%
Call Com_CreatValidCode(Request.QueryString("tel"))

Public Sub Com_CreatValidCode(pTel)

     ----------禁止缓存
     Response.Expires = 0
     Response.AddHeader "Pragma","no-cache"
     Response.AddHeader "cache-ctrol","no-cache"
     Response.ContentType = "Image/BMP"

Randomize

Dim i, ii, iii ,rndColor,strLen,sql,rs

     Const cOdds = 5 ------------杂点出现的机率
     Const str="0123456789-"
     strLen = len(pTel)
     rndColor = ChrB(cint(rnd*255)) & ChrB(cint(rnd*255)) & ChrB(cint(rnd*255))

-----------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(255) & ChrB(255) & ChrB(255) ----蓝250，绿236，红211（浅蓝色）

vColorData(0) = ChrB(197) & ChrB(106) & ChrB(49) ---- 蓝0，绿0，红0（黑色）
vColorData(1) = ChrB(238) & ChrB(210) & ChrB(193) -----蓝250，绿236，红211（浅蓝色）

vColorData(0) = ChrB(0) & ChrB(0) & ChrB(0) ---------蓝0，绿0，红0（黑色）
vColorData(1) = ChrB(205) & ChrB(237) & ChrB(245) ------------蓝250，绿236，红211（浅蓝色）

--------------------随机产生字符
Randomize

     Dim vCode()
     redim vCode(strLen-1)
     For i = 0 To strLen-1
         vCode(i) =instr(1,str,mid(pTel,i+1,1),1)-1
     Next

-----------字符的数据
Dim vNumberData(11)

     Verdana Font
     vNumberData(0) = "1111111111100011110111011101110111011101110111011101110111011101111
0001111111111"
     vNumberData(1) = "1111111111110111111001111111011111110111111101111111011111110111111
0001111111111"
     vNumberData(2) = "1111111111100011110111011101110111111011111101111110111111011111110
0000111111111"
     vNumberData(3) = "1111111111100011110111011111110111110011111111011111110111011101111
0001111111111"
     vNumberData(4) = "1111111111111011111100111110101111101011110110111110000111111011111
1100111111111"
     vNumberData(5) = "1111111111000001110111111101111111000011111111011111110111011101111
0001111111111"
     vNumberData(6) = "1111111111100011110110111101111111000011110111011101110111011101111
0001111111111"
     vNumberData(7) = "1111111111000001110110111111101111110111111101111111011111110111111
1011111111111"
     vNumberData(8) = "1111111111100011110111011101110111100011110111011101110111011101111
0001111111111"
     vNumberData(9) = "1111111111100011110111011101110111011101111000011111110111101101111
0000111111111"
     vNumberData(10) = "1111111111111111111111111111111111111111110000011111111111111111111
1111111111111"
     vNumberData(11) = "1111111111111111111111111111111111111111111111111111111111111111111
1111111111111"

     -----------------输出图像文件头 <br>
     Response.BinaryWrite ChrB(66) & ChrB(77) &chrb(((strLen*8*10*3+54) mod 256)) & chrb(((strLen*8*10*3+54)\ 256)mod 256) & ChrB((((strLen*8*10*3+54)\ 256)\256)mod 256) & ChrB(((((strLen*8*10*3+54)\ 256)\256)\256)mod 256) & 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(strLen*8) & 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((strLen*8*10*3)mod 256)&ChrB(((strLen*8*10*3)\256)mod 256)&ChrB((((strLen*8*10*3)\256)\256)mod 256)&ChrB(((((strLen*8*10*3)\256)\256)\256)mod 256)&_
     ChrB(196) & ChrB(14) & ChrB(0) & ChrB(0) & ChrB(196) & ChrB(14)&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 strLen-1     -------历经所有字
             For iii = 1 To 8 --------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 rndColor
                Else
                     Response.BinaryWrite vColorData(Mid(vNumberData(vCode(ii)), i * 8 + iii, 1))
                End If
             Next
         Next
     Next
End Sub
%>

将以上代码保存为img.asp，在要显示电话号码的位置插入<img src="img.asp?tel=0591-26728373">即可。

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