使用Python.NET导出Excel方程到其他格式

有时，您可能需要在代码中将Excel公式导出为其他格式以满足工作需求。Aspose.Cells库可以满足您的需求。下面的内容介绍了导出Excel公式到其他格式的方法。

这里提供了示例代码，帮助您使用Aspose.Cells实现目标，同时也提供了必要的示例文件。

将方程导出为LaTeX表达式

要将Excel中的方程导出为LaTeX表达式，使用 to_latex() 方法。

以下示例演示了如何使用 to_latex() 方法，并将生成的结果插入HTML中：

Python代码

import os
from aspose.cells import Workbook
from aspose.cells.drawing import TextBox
from aspose.cells.drawing.equations import EquationNode

dir_path = "testcase/data"
workbook = Workbook(os.path.join(dir_path, "Sample_equation.xlsx"))

html_content = [
    "<!DOCTYPE html>",
    "<html lang=\"en\">",
    "<head>",
    "    <meta charset=\"UTF-8\">",
    "    <title>Title</title>",
    "    <script type=\"text/javascript\" async src=\"https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML\"></script>",
    "    <script type=\"text/x-mathjax-config\">",
    "        MathJax.Hub.Config({",
    "            tex2jax: {",
    "                inlineMath: [['$','$'], ['\\\\(','\\\\)']],",
    "                processEscapes: true",
    "            }",
    "        });",
    "    </script>",
    "</head>",
    "<body>"
]

textboxes = workbook.worksheets[0].text_boxes
text_box = textboxes[0] # Assuming first shape is TextBox
math_node = text_box.get_equation_paragraph().get_child(0)
latex_expression = math_node.to_la_te_x()
html_content.append(f"<p>${latex_expression}$</p>")
html_content.append("</body>")
html_content.append("</html>")

with open("result.html", "w", encoding="utf-8") as f:
    f.write("\n".join(html_content))

将方程导出为MathML表达式

要将Excel中的方程导出为MathML表达式，使用 to_math_ml() 方法。

以下示例演示了如何使用 to_math_ml() 方法，并将生成的结果插入HTML中：

Python代码

import os
from aspose.cells import Workbook
from typing import List

dir_path = "testcase/data/"

workbook = Workbook(os.path.join(dir_path, "Sample_equation.xlsx"))

html_builder = [
    "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <title>Title</title>\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>\n</head>\n<body>"
]

textboxes = workbook.worksheets[0].text_boxes
text_box = textboxes[0]  # Type inferred as TextBox from ShapeCollection
math_node = text_box.get_equation_paragraph().get_child(0)
html_builder.append(math_node.to_math_ml())
html_builder.append("</body>\n</html>")

html_content = "\n".join(html_builder)

output_path = os.path.join(dir_path, "result.html")
with open(output_path, "w", encoding="utf-8") as file:
    file.write(html_content)

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