current_users=['Niuniu','Niumei','GURR','LOLO'] current_users_up=[i.upper() for i in current_users] #将各元素先统一大写,复制给一临时列表 new_users=['GurR','Niu Ke Le','LoLo','Tuo Rui Chi'] for i in range(len(new_users)): if new_users[i].upper() in current_users_up: print(f'The user name {new_users[i]} h...