wangwenju
/
orderFood


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>生成占位二维码</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: #f5f5f5;
            font-family: Arial, sans-serif;
        }
        .container {
            text-align: center;
            background: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        canvas {
            border: 1px solid #ddd;
            margin: 20px 0;
        }
        button {
            padding: 10px 20px;
            background: #4caf50;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }
        button:hover {
            background: #45a049;
        }
        .note {
            margin-top: 20px;
            color: #666;
            font-size: 14px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h2>生成占位二维码图片</h2>
        <canvas id="canvas" width="200" height="200"></canvas>
        <br>
        <button onclick="downloadImage()">下载为 payment-qrcode.png</button>
        <div class="note">
            <p>这是一个占位图片，请替换为你的真实支付二维码</p>
            <p>下载后放在 images 文件夹中即可</p>
        </div>
    </div>

    <script>
        // 绘制占位二维码
        const canvas = document.getElementById('canvas');
        const ctx = canvas.getContext('2d');
        
        // 背景
        ctx.fillStyle = '#ffffff';
        ctx.fillRect(0, 0, 200, 200);
        
        // 边框
        ctx.strokeStyle = '#333';
        ctx.lineWidth = 2;
        ctx.strokeRect(10, 10, 180, 180);
        
        // 文字
        ctx.fillStyle = '#333';
        ctx.font = 'bold 16px Arial';
        ctx.textAlign = 'center';
        ctx.fillText('支付二维码', 100, 90);
        ctx.font = '12px Arial';
        ctx.fillText('请替换为真实二维码', 100, 110);
        
        // 简单的二维码图案
        ctx.fillStyle = '#333';
        for (let i = 0; i < 8; i++) {
            for (let j = 0; j < 8; j++) {
                if ((i + j) % 2 === 0) {
                    ctx.fillRect(50 + i * 12, 120 + j * 8, 10, 6);
                }
            }
        }
        
        function downloadImage() {
            const link = document.createElement('a');
            link.download = 'payment-qrcode.png';
            link.href = canvas.toDataURL('image/png');
            link.click();
        }
    </script>
</body>
</html>