用JavaScript通过C++插入或删除Excel工作表中的行

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Aspose.Cells for JavaScript通过C++提供两种插入和删除行的方法：Cells.insertRows(number, number, boolean)和Cells.deleteRows(number, number)。这些方法经过性能优化，执行速度非常快。

建议在插入或删除多行时，始终使用 Cells.insertRows(number, number, boolean) 和 Cells.deleteRows(number, number) 方法，而不是在循环中使用 Cells.insertRow(number) 或 Cells.deleteRow(number) 方法。

Aspose.Cells的工作方式与Microsoft Excel相同。当添加行或列时，工作表内容向下和向右移动。当删除行或列时，工作表内容向上或向左移动。添加或删除行时，其他工作表和单元格中的引用会得到更新。

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Insert and Delete Rows</title>
    </head>
    <body>
        <h1>Insert and Delete Rows Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
        <button id="runExample">Run Example</button>
        <a id="downloadLink" style="display: none;">Download Result</a>
        <div id="result"></div>
    </body>

    <script src="aspose.cells.js.min.js"></script>
    <script type="text/javascript">
        const { Workbook, SaveFormat, Utils } = AsposeCells;

        AsposeCells.onReady({
            license: "/lic/aspose.cells.enc",
            fontPath: "/fonts/",
            fontList: [
                "arial.ttf",
                "NotoSansSC-Regular.ttf"
            ]
        }).then(() => {
            console.log("Aspose.Cells initialized");
        });

        document.getElementById('runExample').addEventListener('click', async () => {
            const fileInput = document.getElementById('fileInput');
            if (!fileInput.files.length) {
                document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
                return;
            }

            const file = fileInput.files[0];
            const arrayBuffer = await file.arrayBuffer();

            // Instantiate a Workbook object and load the selected file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Get the first worksheet in the book
            const sheet = workbook.worksheets.get(0);

            // Insert 10 rows at row index 2 (insertion starts at 3rd row)
            sheet.cells.insertRows(2, 10);

            // Delete 5 rows now. (8th row - 12th row)
            sheet.cells.deleteRows(7, 5);

            // Save the excel file
            const outputData = workbook.save(SaveFormat.Xlsx);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'out_book1.out.xlsx';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Modified Excel File';

            document.getElementById('result').innerHTML = '<p style="color: green;">Rows modified successfully! Click the download link to get the modified file.</p>';
        });
    </script>
</html>
使用Aspose.Cells for JavaScript通过C++将文本转换为列。