css验证码-[HTML+CSS+JS] 简单的登录和注册验证

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2023-09-01 0 4,493 百度已收录

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登录注册验证

简单的小笔记

本文基于优化

有私信要求我验证登录用户名和密码并跳转到登录后的页面。下面是一个简单的JS实现

可以做的额外优化还有很多css验证码，比如验证输入信息格式、查询用户名是否重复等css验证码，这些都可以在获取用户输入的信息后通过一些简单的方法来实现。百度上的巨头也有很多方法，这里就不详细介绍了。

疗效

源代码 HTML登录注册.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>login</title>
		<link rel="stylesheet" type="text/css" href="pageChange.css" />
		<script src="pageChange.js"></script>
		<script src="Click.js"></script>
	</head>
	<body>
		<div class="control">
			<div class="item">
				<div class="active">登录</div><div>注册</div>
			</div>
			<div class="content">
				<div style="display: block;">
					<p>账号</p>
					<input type="text" placeholder="username" id="login-username"/>
					<p>密码</p>
					<input type="password" placeholder="password" id="login-password"/>
					<br/>
					<input type="submit" value="登录" onclick="login()"/>
				</div>
				<div>
					<p>用户名</p>
					<input type="text" placeholder="username" id="register-username"/>
					<p>密码</p>
					<input type="password" placeholder="password" id="register-password"/>
					<p>邮箱</p>
					<input type="text" placeholder="email" id="register-email"/>
					<br/>
					<input type="submit" value="登录" onclick="register()"/>
				</div>
			</div>
		</div>
	</body>
</html>

登录成功.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<h1>login Success</h1>
	</body>
</html>

CSS

css验证码-[HTML+CSS+JS] 简单的登录和注册验证

*{
	margin: 0;
	padding: 0;
}
body{
	background: #f3f3f3;
}
.control{
	width: 340px;
	background: white;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
	border-radius: 5px;
}
.item{
	width: 340px;
	height: 60px;
	background: #eeeeee;
}
.item div{
	width: 170px;
	height: 60px;
	display: inline-block;
	color: black;
	font-size: 18px;
	text-align: center;
	line-height: 60px;
	cursor: pointer;
}
.content{
	width: 100%;
}
.content div{
	margin: 20px 30px;
	display: none;
	text-align: left;
}
p{
	color: #4a4a4a;
	margin-top: 30px;
	margin-bottom: 6px;
	font-size: 15px;
}
.content input[type="text"], .content input[type="password"]{
	width: 100%;
	height: 40px;
	border-radius: 3px;
	border: 1px solid #adadad;
	padding: 0 10px;
	box-sizing: border-box;
}
.content input[type="submit"]{
	margin-top: 40px;
	width: 100%;
	height: 40px;
	border-radius: 5px;
	color: white;
	border: 1px solid #adadad;
	background: #00dd60;
	cursor: pointer;
	letter-spacing: 4px;
	margin-bottom: 40px;
}
.active{
	background: white;
}
.item div:hover{
	background: #f6f6f6;
}

JSpageChange.js

window.onload = function(){
	var item = document.getElementsByClassName("item");
	var it = item[0].getElementsByTagName("div");
	
	var content = document.getElementsByClassName("content");
	var con = content[0].getElementsByTagName("div");
	
	for(let i=0;i<it.length;i++){
		it[i].onclick = function(){
			for(let j=0;j<it.length;j++){
				it[j].className = '';
				con[j].style.display = "none";
			}
			this.className = "active";
			it[i].index=i;
			con[i].style.display = "block";
		}
	}
}

Click.js

var user = new Map([["123","123"]])
function login(){
	var username = document.getElementById("login-username").value;
	var password = document.getElementById("login-password").value;
	
	if(user.get(username)==password){
		window.location.href="loginSuccess.html";
	}else{
		alert("用户名或密码错误");
	}
}
function register(){
	var username = document.getElementById("register-username").value;
	var password = document.getElementById("register-password").value;
	
	user.set(username,password);
	alert("注册成功，请登录");
	document.getElementById("register-username").value="";
	document.getElementById("register-password").value="";
	document.getElementById("register-email").value="";
}