此程序在浏览器中打开一个窗口。用户输入密码及其强度级别。它从包含 72 行代码的单个 .html 文件运行，包括 HTML 结构和嵌入式 JavaScript 功能。
这个例子是为了教学如何编码。该程序是基本的，并提供简单的、基于规则的密码强度检查。它应该被视为初步工具，而不是全面的安全措施。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Password Strength Checker</title>
<style>
body {
font-family: Arial, sans-serif;
display: flex;
justify-content: center;
align-items: flex-start; /* Align the container at the top */
height: 100vh;
margin: 0;
background-color: #f4f4f4;
}
.container {
text-align: center;
background-color: white;
padding: 10px;
border-radius: 8px;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
width: 220px; /* Small width similar to audio player */
height: auto; /* Let height adjust based on content */
margin-top: 20vh; /* Moves the container down by 20% of the viewport height */
}
input[type="password"] {
padding: 5px;
width: 180px; /* Keep it small */
margin-top: 10px;
border: 1px solid #ccc;
border-radius: 4px;
}
#strength {
margin-top: 10px;
font-weight: bold;
}
</style>
</head>
<body>
<div class="container">
<h1>Password Checker</h1>
<input type="password" id="password" placeholder="Enter password">
<div id="strength">Strength: </div>
</div>
<script>
const passwordInput = document.getElementById('password');
const strengthDisplay = document.getElementById('strength');
passwordInput.addEventListener('input', function() {
const password = passwordInput.value;
const strength = calculatePasswordStrength(password);
strengthDisplay.textContent = `Strength: ${strength}`;
});
function calculatePasswordStrength(password) {
let strength = 'Weak';
if (password.length >= 8) {
strength = 'Medium';
}
if (/[A-Z]/.test(password) && /[0-9]/.test(password) && /[^A-Za-z0-9]/.test(password)) {
strength = 'Strong';
}
return strength;
}
</script>
</body>
</html>
本·桑托拉 - 2024 年 10 月
以上是密码检查器 - JavaScript的详细内容。更多信息请关注PHP中文网其他相关文章！
