自学教程：Python 对Excel求和、合并居中的操作

import osimport openpyxlfrom openpyxl.styles import Border, Side, PatternFill, Font, GradientFill, Alignmentdef range_sum(worksheet,start,end):  sum = 0  for row in worksheet[start:end]:    for cell in row:      if cell.value != None:        sum += cell.value  return sumdef is_blank_row(worksheet,row_num,max_col=None):  if not max_col:    max_col = worksheet.max_column   for cell in worksheet[row_num][:max_col]:    if cell.value:      return False  return Truedef total_amount(worksheet):  """ 对某sheet的A、E列合并居中，并对E列求和 """  ws = worksheet  row, max_row = 4, ws.max_row  while row < ws.max_row:    sum_row_start, sum_row_end = row, row    for working_row in range(row + 1,max_row + 2):      if (not is_blank_row(worksheet, working_row-1) # 上一行有值         and (ws[f'A{working_row}'].value or is_blank_row(worksheet, working_row))): # A列有值 或 当前为空行（最后一次合并）          # 求和          sum_row_end = working_row - 1          ws[f'E{sum_row_start}'] = range_sum(ws,f'C{sum_row_start}',f'C{sum_row_end}')          # 合并居中          ws[f'E{sum_row_start}'].alignment = Alignment(horizontal="center", vertical="center")          ws[f'A{sum_row_start}'].alignment = Alignment(horizontal="center", vertical="center")          ws.merge_cells(f'E{sum_row_start}:E{sum_row_end}')          ws.merge_cells(f'A{sum_row_start}:A{sum_row_end}')          break    row = sum_row_end + 1def main():  # 根据情况修改代码  in_file_name = 'In.xlsx'  processing_sheet = 'Sheet1'  path_name = 'D://Users//Desktop//Temp'  out_file_name = 'Out.xlsx'  wb = openpyxl.load_workbook(filename=os.path.join(path_name,in_file_name))  total_amount(wb[processing_sheet])  wb.save(os.path.join(path_name,out_file_name))if __name__=='__main__':  main()

dataf_test1['diff'].sum() // diff为要求和的列