如何替换docx的XWPFTableCell中的字符串

from docx import Document
from docx.oxml.ns import nsdecls
from docx.oxml import parse_xml

doc = Document('your_document.docx')

def replace_text_in_table(table, target_text, replacement_text):
    for row in table.rows:
        for cell in row.cells:
            for paragraph in cell.paragraphs:
                if target_text in paragraph.text:
                    inline = paragraph.runs
                    for i in range(len(inline)):
                        if target_text in inline[i].text:
                            text = inline[i].text.replace(target_text, replacement_text)
                            inline[i].text = text

# 替换表格中的字符串
target_text = "要替换的字符串"
replacement_text = "替换后的字符串"
for table in doc.tables:
    replace_text_in_table(table, target_text, replacement_text)

doc.save('modified_document.docx')