如下参考：
1.首先，在您的计算机桌面上创建一个新文件夹，然后在该文件夹中创建一个新的文本文档。
2.然后用记事本双击打开文本文档，如下图所示，然后编写一个简单的HTML代码。
3.点击“另存为”功能选项，显示默认的“另存为”代码为ANSI。
4.我们将把编码和文件名更改回图中所示的图像并保存它。
5.然后回到新创建的文件夹，找到一个额外的HTML文件。
6.最后，使用浏览器打开HTML文件。结果如图所示。
<!DOCTYPE html><html lang="zh-CN"><head><meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>登录</title>
<link href="css/bootstrap.min.css" rel="stylesheet"></head><body><nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="./">jsp作业</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li><a href="login.html">登录</a></li>
</ul>
</div>
</div></nav><div class="container">
<div class="row">
<div class="col-md-4">
</div>
<div class="col-md-4">
<form class="form-signin" target="submitFrame" method="post">
<h2 class="form-signin-heading">登录到jsp作业</h2>
<label for="inputEmail">Email</label>
<input type="email" id="inputEmail" class="form-control" placeholder="请输入Email" required autofocus><br>
<label for="inputPassword">密码</label>
<input type="password" id="inputPassword" class="form-control" placeholder="请输入密码" required>
<div class="checkbox">
<label>
<input type="checkbox" value="remember-me" checked="checked">记住密码</label>
</div>
<button type="submit" class="btn btn-primary" id="btn-login">登录</button>
<a href="reg.html" class="btn btn-default">注册</a>
</form>
<iframe style="display: none" name="submitFrame" src="about:blank"></iframe>
</div>
<div class="col-md-4">
</div>
</div>
<script src="js/jquery.min.js"></script></body></html>
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html charset=utf-8">
<title>贵美商城</title>
<link rel="stylesheet" type="text/css" href="css/global.css">
<link rel="stylesheet" type="text/css" href="css/layout.css">
<script type="text/javascript">
// snameCheck() && passCheck()
function validateform(){
if(snameCheck() && passCheck())
return true
else
return false
}
// Screen Name Validation
function snameCheck(){
var sname = document.getElementsByName("sname")[0].value
var illegalChars = /\W/
if(sname.length != 0){
if(illegalChars.test(sname)){
document.getElementById("passMsg").innerHTML.replace(/'会员名无效'/,'')
document.getElementById("passMsg").innerHTML='会员名无效'
document.getElementsByName("sname")[0].select()
return false
}
}
else
{
document.getElementById("userMsg").innerHTML.replace(/'是否忘记输入会员名？'/,'')
document.getElementById("userMsg").innerHTML='是否忘记输入会员名？'
document.getElementsByName("sname")[0].focus()
return false
}
if(sname!=="zhangsan"){ //验证会员名必须为张三
document.getElementById("userMsg").innerHTML.replace(/'是否输入的会员名有错？'/,'')
document.getElementById("userMsg").innerHTML='是否输入的会员名有错？'
document.getElementsByName("sname")[0].focus()
return false
}
return true
}
function passCheck(){
var userpass = document.getElementsByName("pass")[0].value
var illegalChars = /[\W_]/// allow only charactors and numbers
// Check if Password field is blank.
if(userpass == ""){
document.getElementById("passMsg").innerHTML.replace(/'未输入密码 \n" + "请输入密码'/,'')
document.getElementById("passMsg").innerHTML='未输入密码 \n" + "请输入密码'
document.getElementsByName("pass")[0].focus()
return false
}
// Check if password length is less than 6 charactor.
if(userpass.length < 6){
document.getElementById("passMsg").innerHTML.replace(/'密码必须多于或等于 6 个字符。\n'/,'')
document.getElementById("passMsg").innerHTML='密码必须多于或等于 6 个字符。\n'
document.getElementsByName("pass")[0].focus()
return false
}
//check if password contain illigal charactors.
else if(illegalChars.test(userpass)){
document.getElementById("passMsg").innerHTML.replace(/'密码包含非法字符'/,'')
document.getElementById("passMsg").innerHTML='密码包含非法字符'
document.getElementsByName("pass")[0].select()
return false
}
if(userpass!=="123456"){ //验证密码必须为123456
document.getElementById("passMsg").innerHTML.replace(/'密码错误，请重新输入！'/,'')
document.getElementById("passMsg").innerHTML='密码错误，请重新输入！'
document.getElementsByName("pass")[0].focus()
return false
}
return true
}
</script>
<script type="text/javascript" charset="utf-8" src="http://cdn.gwdang.com/js/gwdang-notifier-bdext.js"></script></head>
<body>
<div id="container">
<iframe id="header" src="header.htm" width="980" height="136" frameborder="0" scrolling="no"></iframe>
<form action="login_success" method="post">
<div class="login">
<ul class="form f_l">
<h1><img src="images/logintitle.gif" alt="会员登录"></h1>
<li class="login_list"><label>会员名：</label><input type="text" name="login">（可包含 a-z、0-9 和下划线）</li>
<li class="login_list"><label>密   码：</label><input type="text" name="pwd">（至少包含 6 个字符）</li>
<li class="a_c"><img src="images/login.gif" alt="登录"></li>
<li class="desc">δ  <a href="#">什么是安全登录</a>。</li>
<li class="desc">δ  香港会员（繁体中文用户）由此<a href="#">登入</a></li>
<li class="desc">δ  <a href="#">密码安全贴士</a>。</li>
<li class="desc">δ  防止病毒或者木马窃取您的账户信息，<a href="#">在线检查</a>您的电脑是否安全。</li>
</ul>
<h1><img src="images/register.gif" alt="注册会员"></h1>
<ul class="aside f_l">
<li class="regpic"><span>便宜有好货！</span>超过7000万件商品任您选。</li>
<li class="regpic regpic2"><span>买卖更安全！</span>交易超安全。</li>
<li class="regpic regpic3"><span>免费开网店！</span>轻松赚钱交友。</li>
<li class="regpic regpic4"><span>超人气社区！</span>彩活动每一天</li>
<li class="a_c"><a href="#"><img src="images/registernow.gif" alt="现在就注册"></a></li>
<ul class="reged">
<li class="regpic regpic5">您已经是会员？<a href="#">由此登入</a></li>
<li class="regpic regpic6">繁体中文用户由此<a href="#">注册</a></li>
</ul>
</ul>
</div>
</form>
<iframe id="footer" src="footer.htm" width="980" height="136" frameborder="0" scrolling="no"></iframe>
</div> <!--container end-->
<div class="_bd_ext_tip" style="visibility: hidden"><span class="_bd_ext_search">百度一下</span><span class="_bd_ext_open">打开链接</span><span class="_bd_ext_copy">复制</span></div></body></html>
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