使用 C++ 通过 Script 计算 IFNA 函数 Aspose.Cells for Java
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Aspose.Cells支持计算Excel中的IFNA函数。如果公式返回#N/A错误值，IFNA函数会返回你指定的值，否则返回公式的结果。
使用 C++ Script 计算 IFNA 函数 Aspose.Cells for Java
以下示例代码演示了如何使用 C++ Script 计算 IFNA 函数。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Aspose.Cells VLOOKUP IFNA 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 } = 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');
const resultDiv = document.getElementById('result');
if (!fileInput.files.length) {
resultDiv.innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Loads the workbook which may contain hidden external links
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Access first worksheet
const worksheet = workbook.worksheets.get(0);
// Add data for VLOOKUP
worksheet.cells.get("A1").value = "Apple";
worksheet.cells.get("A2").value = "Orange";
worksheet.cells.get("A3").value = "Banana";
// Access cell A5 and A6
const cellA5 = worksheet.cells.get("A5");
const cellA6 = worksheet.cells.get("A6");
// Assign IFNA formula to A5 and A6
cellA5.formula = '=IFNA(VLOOKUP("Pear",$A$1:$A$3,1,0),"Not found")';
cellA6.formula = '=IFNA(VLOOKUP("Orange",$A$1:$A$3,1,0),"Not found")';
// Calculate the formula of workbook
workbook.calculateFormula();
// Get the string values of A5 and A6
const valueA5 = cellA5.stringValue;
const valueA6 = cellA6.stringValue;
// Saving the modified 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 = 'output.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
resultDiv.innerHTML = `<p style="color: green;">A5: ${valueA5}</p><p style="color: green;">A6: ${valueA6}</p>`;
});
</script>
</html>
控制台输出
Not found
Orange