表格拆分行数2800行，HTML/Vue代码在线实时编辑、预览

            
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            <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Excel Splitter</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.16.9/xlsx.full.min.js"></script>
    <style>
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #e6f4ff, #b3d9ff);
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        .container {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            text-align: center;
            max-width: 500px;
            width: 100%;
        }
        h1 {
            color: #333;
            margin-bottom: 20px;
            font-size: 24px;
        }
        #progressBar {
            width: 100%;
            background-color: #f3f3f3;
            border-radius: 10px;
            overflow: hidden;
            margin: 20px 0;
        }
        #progressBarFill {
            width: 0%;
            height: 30px;
            background: linear-gradient(90deg, #4caf50, #45a049);
            text-align: center;
            line-height: 30px;
            color: white;
            font-weight: bold;
            transition: width 0.3s ease;
        }
        button {
            margin: 10px;
            padding: 12px 24px;
            background: linear-gradient(90deg, #4caf50, #45a049);
            color: white;
            border: none;
            border-radius: 25px;
            cursor: pointer;
            font-size: 14px;
            transition: background 0.3s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #45a049, #4caf50);
        }
        button:disabled {
            background: #ccc;
            cursor: not-allowed;
        }
        #fileName {
            margin: 15px 0;
            color: #666;
            font-size: 14px;
        }
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }
        .modal {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            text-align: center;
            z-index: 1000;
        }
        .modal button {
            margin-top: 20px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Excel Splitter</h1>
        <input type="file" id="fileInput" accept=".xlsx, .xls" style="display: none;" />
        <label for="fileInput" style="display: inline-block; padding: 12px 24px; background: linear-gradient(90deg, #4caf50, #45a049); color: white; border-radius: 25px; cursor: pointer; font-size: 14px;">
            上传文件
        </label>
        <div id="fileName"></div>
        <button id="startButton" disabled>开始分割</button>
        <button id="clearButton">清除数据</button>
        <div id="progressBar">
            <div id="progressBarFill">0%</div>
        </div>
        <button id="exportButton" disabled>导出文件</button>
    </div>

    <div class="modal-overlay" id="modalOverlay"></div>
    <div class="modal" id="modal">
        <p>分割已完成！</p>
        <button onclick="closeModal()">关闭</button>
    </div>

    <script>
        let workbook = null;
        let chunks = [];

        document.getElementById('fileInput').addEventListener('change', function(event) {
            const file = event.target.files[0];
            if (file) {
                document.getElementById('startButton').disabled = false;
                document.getElementById('fileName').textContent = `已上传文件: ${file.name}`;
            }
        });

        document.getElementById('startButton').addEventListener('click', function() {
            const file = document.getElementById('fileInput').files[0];
            if (file) {
                const reader = new FileReader();
                reader.onload = function(e) {
                    const data = new Uint8Array(e.target.result);
                    workbook = XLSX.read(data, {type: 'array'});
                    const sheetName = workbook.SheetNames[0];
                    const worksheet = workbook.Sheets[sheetName];
                    const json = XLSX.utils.sheet_to_json(worksheet);

                    const chunkSize = 2500;
                    chunks = [];
                    for (let i = 0; i < json.length; i += chunkSize) {
                        chunks.push(json.slice(i, i + chunkSize));
                    }

                    document.getElementById('exportButton').disabled = false;
                    simulateProgress();
                };
                reader.readAsArrayBuffer(file);
            }
        });

        document.getElementById('clearButton').addEventListener('click', function() {
            document.getElementById('fileInput').value = '';
            document.getElementById('startButton').disabled = true;
            document.getElementById('exportButton').disabled = true;
            document.getElementById('fileName').textContent = '';
            workbook = null;
            chunks = [];
            updateProgress(0);
        });

        document.getElementById('exportButton').addEventListener('click', function() {
            if (workbook && chunks.length > 0) {
                const newWorkbook = XLSX.utils.book_new();
                chunks.forEach((chunk, index) => {
                    const newSheet = XLSX.utils.json_to_sheet(chunk);
                    XLSX.utils.book_append_sheet(newWorkbook, newSheet, `Sheet${index + 1}`);
                });
                XLSX.writeFile(newWorkbook, 'split_excel.xlsx');
            }
        });

        function updateProgress(percent) {
            const progressBarFill = document.getElementById('progressBarFill');
            progressBarFill.style.width = percent + '%';
            progressBarFill.textContent = percent + '%';
        }

        function simulateProgress() {
            let percent = 0;
            const interval = setInterval(() => {
                percent += 10;
                updateProgress(percent);
                if (percent >= 100) {
                    clearInterval(interval);
                    showModal();
                }
            }, 300);
        }

        function showModal() {
            document.getElementById('modal').style.display = 'block';
            document.getElementById('modalOverlay').style.display = 'block';
        }

        function closeModal() {
            document.getElementById('modal').style.display = 'none';
            document.getElementById('modalOverlay').style.display = 'none';
        }
    </script>
</body>
</html>