pptx幻灯片复制和更改文本

Question

certificate.pptx中有一张幻灯片。 这是一份证书表格，应打印100页以上。 所以我用InsertFromFile复制了100张幻灯片 旋转每张幻灯片并更改名称，专业和时期。 下面是代码。我想提高效率。 有办法吗？ 预先感谢您的回答。

公共静态无效ReadSlide（） {

string filePath = @"C:\certificate.pptx";

Application pptApplication = new Application();

Presentation createPPTX = pptApplication.Presentations.Add(MsoTriState.msoTrue);

Slides newSlides = createPPTX.Slides;
for (int i = 0; i < 100; ++i)
{
    newSlides.InsertFromFile(filePath, 0, 1);
}
for (int j = 1; j <= 100; ++j)
{
    for (int i = 1; i <= newSlides[j].Shapes.Count; ++i)
    {
        var shape = (Microsoft.Office.Interop.PowerPoint.Shape)newSlides[j].Shapes[i];
        if (shape.HasTextFrame == MsoTriState.msoTrue)
        {
            TextRange textRange;
            string text;
            if (shape.TextFrame.HasText == MsoTriState.msoTrue)
            {
                textRange = shape.TextFrame.TextRange;
                text = textRange.Text;

                text = text.Replace("Major", tableDatas[j].Major);
                text = text.Replace("Id", tableDatas[j].Id);
                text = text.Replace("Name", tableDatas[j].Name);

                text = text.Replace("Date", tableDatas[j].Date);
                text = text.Replace("Today", Today);
                shape.TextFrame.TextRange.Text = text;
                //readSlide.Shapes[i] = shape;
                newSlides[j].Shapes[i].TextFrame.TextRange.Text = text;
            }

        }
    }
}
createPPTX.SaveAs(@"C:\sample.pptx", PpSaveAsFileType.ppSaveAsDefault, MsoTriState.msoTrue);
createPPTX.Close();
pptApplication.Quit();

}