大写数字验证码的实现方法复制代码代码如下:
< 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" />< input type="text" size="5" name="C" autocomplete="off" style="ime-mode:disabled;" value="" >
< input type="submit" value="提交" >
< /form >
asp代码：
复制代码代码如下:
< %
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
% >