# https://www.e-iceblue.cn/doc_python_other/python-insert-or-extract-ole-objects-in-word.html
# pip install Spire.Doc
from spire.doc import *

# 创建Document类的对象
doc = Document()
# 加载Word文档
doc.LoadFromFile(r'D:\dsWork\dsProject\dsRag\static\Txt\化学方程式_CHEMISTRY_1.docx')

i = 1
# 遍历Word文档的所有节
for k in range(doc.Sections.Count):
    sec = doc.Sections.get_Item(k)
    # 遍历每个节的所有子对象
    for j in range(sec.Body.ChildObjects.Count):
        obj = sec.Body.ChildObjects.get_Item(j)
        # 检查子对象是否为段落
        if isinstance(obj, Paragraph):
            par = obj if isinstance(obj, Paragraph) else None
            # 遍历段落中的子对象
            for m in range(par.ChildObjects.Count):
                o = par.ChildObjects.get_Item(m)
                # 检查子对象是否为OLE对象
                if o.DocumentObjectType == DocumentObjectType.OleObject:
                    ole = o if isinstance(o, DocOleObject) else None
                    s = ole.ObjectType
                    if s.startswith("Equation.DSMT4"):
                        ext = ".mathtype"
                        print("equation")

doc.Close()