Come esportare equazioni Excel in altri tipi di espressioni con C++
A volte potrebbe essere necessario esportare formule Excel in altri formati nel proprio codice per soddisfare le esigenze di lavoro. La libreria Aspose.Cells for C++ può soddisfare queste esigenze. Il contenuto seguente introduce metodi per esportare formule Excel in altri formati utilizzando C++.
Forniamo codice di esempio per aiutare a raggiungere questi obiettivi usando Aspose.Cells for C++. I file di esempio necessari sono inclusi.
File di esempio: Sample.xlsx
Esportare equazioni come espressioni LaTeX
Per esportare equazioni come espressioni LaTeX, usa il metodo ToLaTeX().
Il seguente esempio dimostra l’uso di ToLaTeX() e l’inserimento dei risultati in HTML:
C++-To-LaTeX
#include <iostream>
#include <fstream>
#include <sstream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;
int main()
{
Aspose::Cells::Startup();
U16String srcDir(u"..\\Data\\01_SourceDirectory\\");
U16String outDir(u"..\\Data\\02_OutputDirectory\\");
Workbook workbook(srcDir + u"Sample.xlsx");
std::stringstream htmlContent;
htmlContent << "<!DOCTYPE html>\r\n<html lang=\"en\">\r\n<head>\r\n <meta charset=\"UTF-8\">\r\n <title>Title</title>\r\n <script type=\"text/javascript\" async src=\"https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML\"></script>\r\n <script type=\"text/x-mathjax-config\">\r\n MathJax.Hub.Config({\r\n\t tex2jax: {\r\n\t inlineMath: [['$','$'], ['\\\\(','\\\\)']],\r\n\t processEscapes: true\r\n\t }\r\n\t});\r\n </script>\r\n</head>\r\n<body>";
WorksheetCollection worksheets = workbook.GetWorksheets();
ShapeCollection shapes = worksheets.Get(0).GetShapes();
if (shapes.GetCount() > 0)
{
TextBox textBox(shapes.Get(0));
EquationNode mathNode = textBox.GetEquationParagraph().GetChild(0);
U16String latexFormula = mathNode.ToLaTeX();
std::string utf8Formula = latexFormula.ToUtf8();
htmlContent << "<p>$" << utf8Formula << "$</p>\r\n";
}
htmlContent << "</body>\r\n</html>";
U16String outputPath = outDir + u"result.html";
std::ofstream outputFile(outputPath.ToUtf8().c_str(), std::ios::binary);
outputFile << htmlContent.str();
outputFile.close();
Aspose::Cells::Cleanup();
return 0;
}
Esportare equazioni come espressioni MathML
Per esportare equazioni come espressioni MathML, usa il metodo ToMathML().
Il seguente esempio dimostra l’uso di ToMathML() e l’inserimento dei risultati in HTML:
C++-To-MathML
#include <iostream>
#include <fstream>
#include "Aspose.Cells.h"
using namespace Aspose::Cells;
using namespace Aspose::Cells::Drawing;
using namespace Aspose::Cells::Drawing::Equations;
int main()
{
Aspose::Cells::Startup();
U16String srcDir(u"..\\Data\\01_SourceDirectory\\");
U16String outDir(u"..\\Data\\02_OutputDirectory\\");
U16String inputFilePath = srcDir + u"Sample.xlsx";
Workbook workbook(inputFilePath);
Worksheet worksheet = workbook.GetWorksheets().Get(0);
ShapeCollection shapes = worksheet.GetShapes();
TextBox textBox = static_cast<TextBox>(shapes.Get(0));
EquationNode mathNode = textBox.GetEquationParagraph().GetChild(0);
U16String htmlContent = u"<!DOCTYPE html>\r\n<html lang=\"en\">\r\n<head>\r\n <meta charset=\"UTF-8\">\r\n <title>Title</title>\r\n <script type=\"text/javascript\" async src=\"https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML\"></script>\r\n</head>\r\n<body>";
htmlContent += mathNode.ToMathML();
htmlContent += u"</body>\r\n</html>";
U16String outputFilePath = outDir + u"result.html";
std::ofstream outFile(outputFilePath.ToUtf8().c_str());
outFile << htmlContent.ToUtf8();
outFile.close();
std::cout << "HTML file created successfully!" << std::endl;
Aspose::Cells::Cleanup();
}