current_users = ['Niuniu', 'Niumei', 'GURR', 'LOLO'] new_users = ['GurR', 'Niu Ke Le', 'LoLo', 'Tuo Rui Chi'] for i in new_users: if i.lower() in list(map(lambda x:x.lower(),current_users)): # 统一转换为小写进行比较 print(f"The user name {i} has alr...