在C#中将Excel图表转换为高分辨率图像和矢量图

using Excel = Microsoft.Office.Interop.Excel;

Excel.Application excelApp = new Excel.Application();
Excel.Workbook workbook = excelApp.Workbooks.Open("Excel文件路径");
Excel.Worksheet worksheet = workbook.Worksheets[1];
Excel.ChartObjects chartObjects = worksheet.ChartObjects();
Excel.ChartObject chartObject = chartObjects[1];
Excel.Chart chart = chartObject.Chart;

// 导出为高分辨率图像
chart.Export("导出路径.png", "PNG", Width, Height);

// 导出为矢量图
chart.Export("导出路径.emf", "EMF", Width, Height);

// 释放资源
Marshal.ReleaseComObject(chart);
Marshal.ReleaseComObject(chartObject);
Marshal.ReleaseComObject(chartObjects);
Marshal.ReleaseComObject(worksheet);
workbook.Close();
excelApp.Quit();
Marshal.ReleaseComObject(workbook);
Marshal.ReleaseComObject(excelApp);