import re
filename = "1.txt"
filename_new = '3.txt'
with open(filename,"r",encoding='utf-8') as f:
    data = f.read()
    data_re = re.sub('(威信|微鑫)','微信',data)
    data_re = re.sub('微信公众号，','微信号，',data_re)
    data_re = re.sub('[\u4e00-\u9fa5]*"hongcha866"微信号，','',data_re)
    data_re = re.sub('[\u4e00-\u9fa5]*"songshu566"微信号，','',data_re)
    data_re = re.sub('[\u4e00-\u9fa5]*"xinwu799"微信号，','',data_re)
    data_re = re.sub('网址：https://[\S]+','',data_re)
    data_re = re.sub('看更多好看的小说！','',data_re)
    data_re = re.sub('-->>（本章未完，请点击下一页继续阅读）','',data_re)
    with open(filename_new,"w",encoding='utf-8') as f:
        f.write(data_re)