def func_lower(name_list): #整个函数专门用来将列表小写 name_list = [name_list[i].lower() for i in range(len(name_list))] return name_list current_users = ['Niuniu', 'Niumei', 'GURR', 'LOLO'] current_users_lower = func_lower(current_users) #不改变原列表,创建一个新列表装小写成员 new_users = ['GurR', 'Niu Ke Le', 'LoLo', ...