'''
#hasattr()判断真假布尔值True Faster
#delattr()删除
#setattr()新增
#getattr()#查看
class Person(object):

    def __init__(self, name, age, gender):
        self.name = name
        self.age = age
        self.gender = gender

huchangxi = Person("huchangxi", 22, "男")

def check_attr():
    attr = input("呼长喜的属性 >>>")
    # print(attr, type(attr))
    is_exist = hasattr(huchangxi, attr)  # 布尔值
    if is_exist:
        print(getattr(huchangxi, attr))
    else:
        print("呼长喜不存在属性", attr)
        choice = input("是否设置该属性?Y/N:")
        if choice.upper() == "Y":
            value = input(f"请输入属性{attr}的值：")
            print(value)
            setattr(huchangxi, attr, value)
            print("赋值成功")

while 1:
    print("""
     1. 查看属性
     2. 删除属性
     3. 修改属性
     4. 添加属性
    """)
    choice = input("请输入选择的序号>>>")
    if choice == "1":
        check_attr()
    elif choice == "2":
        chongxin = ""
        while 1:
            del_attr = input(f"请{chongxin}输入删除属性：")
            if hasattr(huchangxi, del_attr):
                delattr(huchangxi, del_attr)
                print("删除成功！")
                break
            else:
                chongxin = "重新"
                print("不存在该属性", del_attr)
'''