修改index 设置自动变化

2024-08-22 20:33:21 +08:00
parent f64f800808
commit 1330008c05
3 changed files with 114 additions and 19 deletions
--- a/text_to_qrcode.html
+++ b/text_to_qrcode.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>文字转二维码</title>
+    <script src="https://cdn.jsdelivr.net/npm/qrcodejs/qrcode.min.js"></script>
+    <style>
+        body {
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            height: 100vh;
+            margin: 0;
+            font-family: Arial, sans-serif;
+            background-color: #f4f4f4;
+        }
+        .container {
+            text-align: center;
+            background-color: #fff;
+            padding: 20px;
+            border-radius: 10px;
+            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+        }
+        #qrcode {
+            margin: 20px auto 0; /* 上下左右居中 */
+            display: inline-block; /* 保证生成的二维码容器大小适应内容 */
+        }
+        #error {
+            color: red;
+            margin-top: 10px;
+            display: none;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>文字转二维码</h1>
+
+        <form id="textForm">
+            <textarea id="inputText" name="inputText" rows="4" cols="50" placeholder="请输入要生成二维码的文字..." required></textarea><br><br>
+
+            <button type="submit">生成二维码</button>
+        </form>
+
+        <div id="qrcode"></div>
+        <div id="error">输入的文字太长，无法生成二维码，请减少文字长度。</div>
+    </div>
+
+    <script>
+        const maxLength = 512; // QR码的最大字符长度限制
+
+        document.getElementById('textForm').addEventListener('submit', function(event) {
+            event.preventDefault();
+
+            const inputText = document.getElementById('inputText').value;
+            const qrCodeContainer = document.getElementById('qrcode');
+            const errorContainer = document.getElementById('error');
+
+            // 清空之前的二维码和错误信息
+            qrCodeContainer.innerHTML = ""; 
+            errorContainer.style.display = 'none';
+
+            // 检查输入文字长度是否超过最大限制
+            if (inputText.length > maxLength) {
+                errorContainer.style.display = 'block'; // 显示错误信息
+            } else {
+                new QRCode(qrCodeContainer, inputText);
+            }
+        });
+    </script>
+</body>
+</html>