ASP表单提交前的验证

来源：百度知道 编辑：UC知道 时间：2024/05/20 01:36:17
<!-- #include file="include/conn.asp" -->

<b><font color="#FFFFFF" face="宋体"><span lang="zh-cn">注册</span></font></b>
<form action="add_messages.asp" method="POST" style="vertical-align: super">
<b>License</b><span lang="zh-cn"></span><input type="varchar" name="license" size="12" maxlength="12"><p><span lang="zh-cn">
<b>姓名 </b> </span><input type="varchar" name="username" size="8" maxlength="2"><br><span lang="zh-cn"></span>
<b>电话</b><span lang="zh-cn"><b> </b></span><input type="varchar" name="phone_no" size="20"></p><p><span lang="zh-cn&quo

<!-- #include file="include/conn.asp" -->
<%

lic=request.form("license")
set reg=conn.execute ("select license from table where license='"&lic&"'")
if not reg.eof then
response.write"<script>alert("error !,license input repleat,please input again");history.back(-1)</script>"
else
'提交入库语句
end if
%>
<b><font color="#FFFFFF" face="宋体"><span lang="zh-cn">注册</span></font></b>
<form action="add_messages.asp" method="POST" style="vertical-align: super">
<b>License</b><span lang="zh-cn"></span><input type="varchar" name="license" size="12" maxlength="12"><p><span lang="zh-cn">
<b>姓名 </b> </span>&