搞定一个表的逻辑循环

import os
import win32com.client as win32
import shutil
import openpyxl

#####第一步先降原文件夹中的xlsx文件直接拷贝至bak文件夹中，切片r s t

file = []

path = os.getcwd()  # 转换前程序所在文件目录

path_bak = os.getcwd() + r'/bak/'

pathdir = os.listdir(path)
print(pathdir)
for s in pathdir:
    newdir = os.path.join(path, s)
    if os.path.isfile(newdir):
        os.chdir(path_bak)
        pathdir_bak = os.listdir(path_bak)
       # print(pathdir_bak)
        if os.path.splitext(newdir)[1] == ".xls":
            t = os.path.split(s)[1] + r'x'
            if os.path.exists(t):
            #    print(os.path.exists(os.path.split(s)[1]))
                break
            else:
                excel = win32.gencache.EnsureDispatch('Excel.Application')
                wb = excel.Workbooks.Open(newdir)
             #   print(newdir)
                path_dir = os.path.split(newdir)[0]
                path_file = os.path.split(newdir)[1]
              #  print(path_dir)
             #   print(path_file)
                wb.SaveAs(path_dir + '/bak/' + path_file + 'x', FileFormat=51)  # FileFormat = 51 is for .xlsx extension
                wb.Close()  # FileFormat = 56 is for .xls extension
                excel.Application.Quit()
        elif os.path.splitext(newdir)[1] == ".xlsx":
            file.append(newdir)


    elif os.path.isdir(newdir):
        continue

for i in range(len(file)):
    pcm_file = file[i]
    path_0 = os.path.split(file[i])[0]
    path_1 = os.path.split(file[i])[1]
    oldname = path_0 + '/' + path_1
    newname = path_0 + r'/bak/' + path_1
    shutil.copyfile(oldname, newname)

#####第二步将文件目录切换至bak文件夹中，，切片u v w



file_deal = []

path_deal = os.getcwd()  # 转换前程序所在文件目录





pathdir_deal = os.listdir(path_deal)
for u in pathdir_bak:
    newdir_deal = os.path.join(path_deal, u)
    file_deal.append(newdir_deal)
   # print(file_deal)



for j in range(len(file_deal)):
    pcm_file_deal = file_deal[j]
    path_0_deal = os.path.split(file_deal[j])[0]   #文件所在目录
    path_1_deal = os.path.split(file_deal[j])[1]   #文件名称带后缀
  #  print(pcm_file_deal)
  #  print(path_0_deal)
    print(path_1_deal)


    wb = openpyxl.load_workbook(path_1_deal)

    allSheets = wb.get_sheet_names()

    for i in range(len(allSheets)):
        sheet = wb.get_sheet_by_name(allSheets[i])
        for row in sheet.iter_rows():
            for cell in row:
                if str(str(cell.value).replace(' ', '')).find("资产负债表") != -1:
                    sheet_selected = wb.get_sheet_by_name(allSheets[i])
                    print(sheet_selected)
                    break
ws = wb.get_sheet_by_name(sheet_selected.title)
print(ws)