解决pandas .to_excel不覆盖已有sheet的问题

from openpyxl import load_workbook
excelWriter = pd.ExcelWriter(os.path.join(output_dir, \'datapoint_statistic.xlsx\'),
            engine=\'openpyxl\')
pd.Data ().to_excel(os.path.join( output_dir,\'datapoint_statistic.xlsx\'))
#excel必需已经存在，因此先建立一个空的sheet
_excelAddSheet(Data , excelWriter, sheet_name)
 
def _excelAddSheet(self,data ,excelWriter,sheet_name):
  book = load_workbook(excelWriter.path)
  excelWriter.book = book
  data .to_excel(excel_writer=excelWriter,sheet_name=sheet_name,index=None)
  excelWriter.close()