作用: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) = "11111111111000111101110111011101110111011101110111011101110111011110001111111111" vNumberData(1) = "11111111111101111110011111110111111101111111011111110111111101111110001111111111" vNumberData(2) = "11111111111000111101110111011101111110111111011111101111110111111100000111111111" vNumberData(3) = "11111111111000111101110111111101111100111111110111111101110111011110001111111111" vNumberData(4) = "11111111111110111111001111101011111010111101101111100001111110111111100111111111" vNumberData(5) = "11111111110000011101111111011111110000111111110111111101110111011110001111111111" vNumberData(6) = "11111111111000111101101111011111110000111101110111011101110111011110001111111111" vNumberData(7) = "11111111110000011101101111111011111101111111011111110111111101111111011111111111" vNumberData(8) = "11111111111000111101110111011101111000111101110111011101110111011110001111111111" vNumberData(9) = "11111111111000111101110111011101110111011110000111111101111011011110000111111111" vNumberData(10) = "11111111111111111111111111111111111111111100000111111111111111111111111111111111" vNumberData(11) = "11111111111111111111111111111111111111111111111111111111111111111111111111111111" '-----------------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 %>
演示 http://tools.jb51.net/telimg/index.asp
index.asp内容为
<img src="http://tools.jb51.net/telimg/telimg.asp?tel=0516-82767226">
本文来自: 脚本之家(www.jb51.net) 详细出处参考:http://www.jb51.net/article/12833.htm
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