import os

def eachFile(filepath):        
  pathDir =os.listdir(filepath)    #遍历文件夹中的text
  return pathDir

def 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)