class Person:def __init__(self,name, phone):self.UserInfo = {'name': name,'phone': phone}class Opt:def __init__(self):self.person = []def add_person(self, user_info):print('增加')self.person.append(user_info)def delete_person(self):print('删除')self.person.pop()def select_person(self, name):print('查找', name)for p in self.person:if p['name'] == name:print(p)breakelse:print("该用户未找到")def update_person(self, name, phone):print('更新name:', name, '的phone为', phone)for p in self.person:if p['name'] == name:p['phone'] = phoneelse:print("没有找到该该用户，无法更新")def print_person(self):print('打印所有用户')for i in self.person:print(i)if __name__ == '__main__':p1=Person('n1', 'p1').UserInfop2=Person('n2', 'p2').UserInfoopt=Opt()opt.add_person(p1)opt.add_person(p2)opt.print_person()opt.select_person('n2')opt.select_person('n3')opt.delete_person()opt.print_person()opt.update_person('n1','p111')opt.print_person()