text: from logging import NullHandler
  from pdf2docx import Converter
  import  streamlit as st
  
  
  from pdf2docx import parse
  
  
  uploaded_file = st.file_uploader(label="请上传PDF文件",type="pdf",accept_multiple_files=False)
  docx_file = "/sample.docx"
  #parse(uploaded_file, docx_file)
  
  with st.empty():
      if uploaded_file is not None:
  
          st.download_button(label="请下载docx文件",data=uploaded_file)
  
  