# -*- coding: utf-8 -*- """ Created on Fri Dec 31 18:10:35 2021 @author: 玦祎 """ f = open('作业二素材.txt',encoding='utf-8') txt = f.read() f.close() index = txt.find('\n顺丰控股股份有限公司') txt_target = txt[:index] e = txt_target.rfind('。') s = txt_target[:e].rfind('。') last_jz = txt_target[s+1:e+1] last_jz = last_jz.replace('\n','') print(len(last_jz))