asp中文数字验证码的实现

    验证码在知码网来说是一个耳熟能详的名词了。今天知码网就来说说大写数字验证码的实现方法吧。

<form method="post" name=myform>
姓 名：<input type="text" name="name" value=""><br>
学 号：<input type="text" name="num" value=""><br>
。。。：<input type="text" name="aaa" value=""><br>
。。。：<input type="text" name="bbb" value=""><br>
验证码：<img src="vcode/c.asp" onclick="this.src=this.src" title="点击图片可以更改验证码" height="13" width="52">
<input type="text" size="5" name="C" autocomplete="off" style="ime-mode:disabled;" value="">
<input type="submit" value="提交">
</form>

asp代码：

<%
c = Request.form("c")
‘如果可以输入小写的数字，请把下面三行注释掉
for ii = 0 to 9
c = Replace(c,Cstr(ii),"")
next
c = Replace(c,"零","0")
c = Replace(c,"一","1")
c = Replace(c,"二","2")
c = Replace(c,"三","3")
c = Replace(c,"四","4")
c = Replace(c,"五","5")
c = Replace(c,"六","6")
c = Replace(c,"七","7")
c = Replace(c,"八","8")
c = Replace(c,"九","9")
if Cstr(c) <> Cstr(Session("validateCode")) then
Response.write ("验证码不正确")
Response.end
end if
%>

    以上内容由知码网提供。“知码网-验证码识别、答题云平台”为您提供一个稳定、快速和安全的云端验证码识别和答题平台。

文章摘自：www.zhima365.com