<!DOCTYPE html>
<
html
lang="
en">
<
head>
<
title></
title>
<
meta
charset="
UTF-8">
<
link
href="
css/style.css"
rel="
stylesheet">
</
head>
<
script
language="
Javascript">
function
check()
{
if(
form1.
username.value=="" &&
form1.
pwd.value=="" &&
form1.
pwd1.value=="")
{
alert ("
错误提示：请将所有资料填写完整！");
return
false;
}
if(
form1.
username.value=="")
{
alert ("
错误提示：用户名不能为空！");
return
false;
}
if (
form1.
pwd.value=="")
{
alert ("
错误提示：密码不能为空！");
return
false;
}
if (
form1.
pwd1.value=="")
{
alert ("
错误提示：账号不能为空！");
return
false;
}
return
true;
}
</
script>
<
body>
<
form
id="
form1"
runat="
server"
name="
form1"
action=""
onsubmit="">
<
p
align="
center">
用户名：
<
input
type="
text"
name="
username" />
<
p
align="
center">
密码：<
input
type="
password"
name="
pwd" />
<
p
align="
center">
账号：<
input
type="
password"
name="
pwd1" />
<
input
type="
submit"
value="
登录"
onclick="
return check()">
</
form>
</
body>
</
html>
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