二维码生成器

一言准备中...
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>二维码生成器</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background-color: #f0f0f0;
        }
        .container {
            text-align: center;
            background-color: #fff;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
            width: 90%;
            max-width: 400px;
        }
        h1 {
            margin-bottom: 20px;
            font-size: 24px;
            color: #333;
        }
        input[type="text"] {
            width: 100%;
            padding: 12px;
            margin-bottom: 20px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 16px;
            box-sizing: border-box;
        }
        select {
            width: 100%;
            padding: 12px;
            margin-bottom: 20px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 16px;
            background-color: #fff;
            cursor: pointer;
        }
        button {
            padding: 12px 20px;
            background-color: #007bff;
            color: #fff;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            margin: 5px;
            width: 100%;
            font-size: 16px;
            transition: background-color 0.3s ease, transform 0.2s ease;
        }
        button:hover {
            background-color: #0056b3;
            transform: scale(1.05);
        }
        button:active {
            transform: scale(0.95);
        }
        .qr-code {
            margin-top: 20px;
            display: flex;
            justify-content: center;
            animation: fadeIn 0.5s ease;
        }
        .qr-code canvas {
            max-width: 100%;
            height: auto;
            border: 1px solid #ccc;
            border-radius: 8px;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>二维码生成器</h1>
        <input type="text" id="inputText" placeholder="请输入网址或文本">
        <select id="backgroundColor">
            <option value="#ffffff">白色</option>
            <option value="#ff0000">红色</option>
            <option value="#00ff00">绿色</option>
            <option value="#0000ff">蓝色</option>
            <option value="#ffff00">黄色</option>
            <option value="#ff00ff">粉色</option>
        </select>
        <button onclick="generateQRCode()">生成二维码</button>
        <button onclick="saveQRCode()">保存二维码</button>
        <div class="qr-code" id="qrCode"></div>
        @菜鬼
    </div>

    <!-- 使用 QRCode.js 库 -->
    <script src="https://cdn.jsdelivr.net/npm/qrcodejs/qrcode.min.js"></script>
    <script>
        let qrCodeInstance = null;

        // 生成二维码
        function generateQRCode() {
            const inputText = document.getElementById('inputText').value;
            const backgroundColor = document.getElementById('backgroundColor').value;
            const qrCodeDiv = document.getElementById('qrCode');

            if (!inputText) {
                alert('请输入网址或文本');
                return;
            }

            // 清空之前的二维码
            qrCodeDiv.innerHTML = '';

            // 生成二维码
            qrCodeInstance = new QRCode(qrCodeDiv, {
                text: inputText,
                width: 200,
                height: 200,
                colorDark: "#000000", // 二维码颜色
                colorLight: backgroundColor, // 背景颜色
                correctLevel: QRCode.CorrectLevel.H
            });
        }

        // 保存二维码
        function saveQRCode() {
            const qrCodeCanvas = document.querySelector('.qr-code canvas');

            if (!qrCodeCanvas) {
                alert('请先生成二维码');
                return;
            }

            // 创建一个新的 canvas 用于保存
            const canvas = document.createElement('canvas');
            const context = canvas.getContext('2d');
            canvas.width = qrCodeCanvas.width;
            canvas.height = qrCodeCanvas.height;

            // 填充背景颜色
            const backgroundColor = document.getElementById('backgroundColor').value;
            context.fillStyle = backgroundColor;
            context.fillRect(0, 0, canvas.width, canvas.height);

            // 绘制二维码
            context.drawImage(qrCodeCanvas, 0, 0);

            // 保存为图片
            const link = document.createElement('a');
            link.href = canvas.toDataURL('image/png');
            link.download = 'qrcode.png';
            link.click();
        }
    </script>
</body>
</html>
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