使用python对多个txt文件中的数据进行筛选的方法

import osdef eachFile(filepath):          pathDir =os.listdir(filepath)    #遍历文件夹中的text  return pathDirdef readfile(name):            fopen=open(name,'r')  for lines in fopen.readlines():     #按行读取text中的内容    lines = lines.replace("/n", "").split(",")    if 'aaa' in str(lines) and '2' not in str(lines):     #筛选出含有'aaa'并且不含数字2的每一行       print(lines)  fopen.close()filePath = "C://Users//Administrator//Desktop//123"pathDir=eachFile(filePath)for allDir in pathDir:  # child = os.path.join('%s%s' % (filepath, allDir))  child = "C://Users//Administrator//Desktop//123" + '//' + allDir  readfile(child)