通过JavaScript使用C++插入来自Web地址的链接图片
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有时候你需要从网页(http://)插入一张图片到工作表中。只需指定图片的URL，每次在Excel中打开电子表格时，图片将被下载。图片不会被实际嵌入到Excel文件中，而是指向一个网页资源。
使用Microsoft Excel
在Microsoft Excel中（例如2007）：
- 单击插入菜单，然后选择图片。
- 在插入图片对话框中指定图片的Web地址。
使用 Aspose.Cells for JavaScript 通过 C++
Aspose.Cells for JavaScript通过C++支持添加链接的图片，方法返回一个Picture对象。
以下示例展示了如何将来自Web地址的链接图片添加到工作表中。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Aspose.Cells - Insert Linked Picture 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) {
// If file provided, use it as the base workbook
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
var workbook = new Workbook(new Uint8Array(arrayBuffer));
} else {
// Otherwise create a new workbook
var workbook = new Workbook();
}
// Access the first worksheet
const worksheet = workbook.worksheets.get(0);
// Insert a linked picture (from Web Address) to B2 Cell.
const pic = worksheet.shapes.addLinkedPicture(1, 1, 100, 100, "http://www.aspose.com/Images/aspose-logo.jpg");
// Set the height and width of the inserted image.
pic.heightInch = 1.04;
pic.widthInch = 2.6;
// Save the Excel file and provide download link
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outLinkedPicture.out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Linked picture inserted successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>