1.javascript html 设计一个登录界面
2.用html代码编写一个简单的手机手机登陆界面
javascript html 设计一个登录界面
注册页面代码：<!DOCTYPE html><html lang="en">
<head>
<meta charset="UTF-8">
<title>注册</title>
</head>
<body>
<form method="post" onsubmit="return false" id="form">
<input type="text" name="username" placeholder="用户名"><br>
<input type="password" name="password" placeholder="密码"><br>
<input type="password" name="rePassword" placeholder="再次输入密码"><br>
<input type="submit" onclick="register_user()" value="注册"><br>
</form>
<a href="login.html">去登录</a>
<script>
var localDB = openDatabase('localDB', '1.0', 'Test DB', 2 * * );
localDB.transaction(function (ts) {
ts.executeSql('CREATE TABLE IF NOT EXISTS user(username,password)')
});
function register_user() {
var username = document.getElementsByTagName("input")[0].value;
var password = document.getElementsByTagName("input")[1].value;
var rePassword = document.getElementsByTagName("input")[2].value;
if(password != rePassword)
{
alert("两次输入的密码不同，请重新输入");
}else
{
localDB.transaction(function(ts){
ts.executeSql("INSERT INTO user (username,登录登录28181协议源码password) VALUES ('"+username+"','"+password+"');");
alert("注册成功");
});
}
}
</script>
</body>
</html>
登录页面代码：
<!DOCTYPE html><html lang="en">
<head>
<meta charset="UTF-8">
<title>登录</title>
</head>
<body>
<form onsubmit="return false" method="post">
<input type="text" placeholder="用户名"><br>
<input type="password" placeholder="密码"><br>
<input type="submit" value="登录" onclick="login()"><br>
</form>
<a href="register.html">去注册</a>
<script>
var localDB = openDatabase('localDB', '1.0', 'Test DB', 2 * * );
localDB.transaction(function (ts) {
ts.executeSql("SELECT * FROM user",[],function (tx, results) {
var len = results.rows.length;
if(len<=0)
{
localDB.transaction(function (ts) {
ts.executeSql('CREATE TABLE IF NOT EXISTS user(username,password)')
});
}
});
});
function login() {
var username = document.getElementsByTagName("input")[0].value;
var password = document.getElementsByTagName("input")[1].value;
localDB.transaction(function (ts) {
ts.executeSql("SELECT * FROM user WHERE username='"+username+"';",[],function (ts, res) {
if(res.rows.length<=0)
{
alert("登录失败，用户未注册");
}else if (password == res.rows[0].password)
{
alert("登录成功,界面源码安装和exe安装三秒后跳转到百度");
setInterval(function () {
location.href = "";
},);
}else
{
alert("登录失败，密码错误");
}
});
})
}
</script>
</body>
</html>
以上代码使用了WEB SQL，源码页面贵州手机直播系统源码还请选择合适的手机手机报修派单系统源码浏览器查看。
用html代码编写一个简单的登录登录爬虫是看源码吗登陆界面
<!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>