作用:用ASP程式將頁面中的電話號碼產生圖片格式。
以下是引用片段:
<%
Call Com_CreatValidCode(Request.QueryString("tel"))
Public Sub Com_CreatValidCode(pTel)
'----------禁止緩存
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 '------------雜點出現的機率
Const str="0123456789-"
strLen = len(pTel)
rndColor = ChrB(cint(rnd*255)) & ChrB(cint(rnd*255)) & ChrB(cint(rnd*255))
'-----------顏色的資料(字符,背景)
Dim vColorData(1)
'vColorData(0) = ChrB(0) & ChrB(0) & ChrB(0) '----藍0,綠0,紅0(黑色)
'vColorData(1) = ChrB(255) & ChrB(255) & ChrB(255) '----藍250,綠236,紅211(淺藍色)
'vColorData(0) = ChrB(197) & ChrB(106) & ChrB(49) '---- 藍0,綠0,紅0(黑色)
'vColorData(1) = ChrB(238) & ChrB(210) & ChrB(193) '-----藍250,綠236,紅211(淺藍色)
vColorData(0) = ChrB(0) & ChrB(0) & ChrB(0) '---------藍0,綠0,紅0(黑色)
vColorData(1) = ChrB(205) & ChrB(237) & ChrB(245) '------------藍250,綠236,紅211(淺藍色)
'---- ----------------隨機產生字符
Randomize
Dim vCode()
redim vCode(strLen-1)
為 i = 0 To strLen-1
vCode(i) =instr(1,str,mid(pTel,i+1,1),1)-1
Next
'-----------字元的數據
Dim vNumberData(11)
'Verdana Font
vNumberData(0) = "1111111111100011110111011101110111011101110111011101110111011101111100011111111111"
vNumberData(1) = "11111111111101111110011111110111111101111111011111110111111110111111100011111111111"
vNumberData(2) = "1111111111100011110111011101110111111011111101111110111111011111111000001111111111"
vNumberData(3) = "111111111110001111011101111110111110011111111011111110111011101111100011111111111"
vNumberData(4) = "11111111111110111111001111101011111010111101101111110000111111011111111001111111111"
vNumberData(5) = "1111111111000001110111111101111111000011111111011111110111011101111100011111111111"
vNumberData(6) = "1111111111100011110110111101111111000011110111011101110111011101111100011111111111"
vNumberData(7) = "111111111100000111011011111101111110111111101111111011111111011111110111111111111"
vNumberData(8) = "1111111111100011110111011101110111100011110111011101110111011101111100011111111111"
vNumberData(9) = "111111111110001111011101110111011101110111100001111111011110110111110000111111111"
vNumberData(10) = "11111111111111111111111111111111111111111100000111111111111111111111111111111111"
vNumberData(11) = "11111111111111111111111111111111111111111111111111111111111111111111111111111111"
'-----------------輸出影像檔頭<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)
'------------------輸出影像資訊頭
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 '----------歷經所有行
為 ii = 0 To strLen-1 '-------歷經所有字
0 iii = 1 To 8 '--------歷經所有像素
'---------逐行、逐字、逐像素輸出影像數據
If Rnd * 99 + 1 < cOdds Then '---------隨機產生雜點
Response.BinaryWrite rndColor
Else
Response.BinaryWrite vColorData(Mid(vNumberData(vCode(ii)), i * 8 + iii, 1))
End If
Next
Next
Next
End Sub
%>
將以上代碼儲存為img.asp,在要顯示電話號碼的位置插入<img src="img.asp?tel=010-0000000">即可。