对python读写文件去重、RE、set的使用详解

如下所示：

# -*- coding:utf-8 -*-
 
from datetime import datetime
import re
 
 
def main():
 sourcr_dir = '/data/u_lx_data/fudan/muying/muying_11yue_all.txt'
 target_dir = '/data/u_lx_data/fudan/muying/python/uid_regular_get.txt'
 
 uset = set() #去重
 
 print("开始。。。。。")
 print(datetime.now().strftime('%y-%m-%d %h:%m:%s'))
 
 with open(target_dir, 'w+') as f_write:
  with open(sourcr_dir, 'r') as f_scorce:
   for line in f_scorce:
   line = line.strip().split("\t")
   # 宝宝树
   if line[2] == 'babytree.com':
    uidlist = re.findall(r'.*nl=u%02(u\d+)', line[3], re.i)
    if uidlist:
     # 去重代码
     if uidlist[0] not in uset:
      f_write.write(uidlist[0] + "\n")
      uset.add(uidlist[0])
      print("宝宝树已完成")
 
   # 柚宝宝
   elif line[2] == 'youzibuy.com':
    if line[4].find("yunqi.youzibuy.com/tae_top_notify") != -1:
     uidlist = re.findall(r'.*myuid=(\d+)', line[4], re.i)
     if uidlist:
      if uidlist[0] not in uset:
       f_write.write(uidlist[0] + "\n")
       uset.add(uidlist[0])
       print("柚宝宝已完成")
 
   # 妈妈帮
   elif line[2] == 'mmbang.com':
    uidlist = re.findall(r'.*uid=(\d+)', line[3], re.i)
    if uidlist:
     if uidlist[0] not in uset:
      f_write.write(uidlist[0] + "\n")
      uset.add(uidlist[0])
      print("妈妈帮已完成")
 
   # 妈妈网
   elif line[2] == 'mama.cn':
    if line[4].find("mapi.mama.cn/feed/users/show") != -1:
     uidlist = re.findall(r'.*friend_uid=(\d+)', line[4], re.i)
     if uidlist:
      if uidlist[0] not in uset:
       f_write.write(uidlist[0] + "\n")
       uset.add(uidlist[0])
    if line[4].find("mamaquan/mmq_thread") != -1:
     uidlist = re.findall(r'.*uid=(\d+)', line[4], re.i)
     if uidlist:
      if uidlist[0] not in uset:
       f_write.write(uidlist[0] + "\n")
       uset.add(uidlist[0])
       print("妈妈网已完成")
 
   # 育儿网
   elif line[2] == 'ci123.com':
    uidlist = re.findall(r'.*ci123js=([a-za-z]+\d+)', line[3], re.i)
    if uidlist:
     if uidlist[0] not in uset:
      f_write.write(uidlist[0] + "\n")
      uset.add(uidlist[0])
      print("育儿网已完成")
 
 print("完成。。。。。")
 print(datetime.now().strftime('%y-%m-%d %h:%m:%s'))
if __name__ == "__main__":
 main()

以上这篇对python读写文件去重、re、set的使用详解就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。