函数的对象

目录

一、函数对象的四大功能

函数是第一类对象，即函数可以被当作数据处理

def func():
    print('from func')


print(func)

<function func at 0x10af72f28>

1、引用

x = 'hello nick'
y = x

f = func
print(f)

<function func at 0x10af72f28>

2、当作参数传给一个函数

len(x)


def foo(m):
    m()


foo(func)

from func

3、可以当作函数的返回值

def foo(x):
    return x


res = foo(func)
print(res)
res()

<function func at 0x10af72f28>
from func

4、可以当作容器类型的元素

l = [x]

function_list = [func]
function_list[0]()

from func

二、猜年龄游戏

import random


def register():
    print('欢迎来到注册页面')

    username = input('请输入你的用户名:')
    pwd = input('请输入你的密码')

    with open('userinfo.txt', 'a', encoding='utf8') as fa:
        fa.write(f'{username}:{pwd}|')


def login():
    print('欢迎来到登录页面')

    username = input('请输入你的用户名:')
    pwd = input('请输入你的密码')

    with open('userinfo.txt', 'r', encoding='utf8') as fr:
        data = fr.read()
        data_split = data.split('|')  # ['nick:123','tank:123']
        userinfo = f'{username}:{pwd}'

        if userinfo in data_split:
            print('登录成功')
        else:
            print('登录失败')


def get_price_dict():
    """获取奖品字典"""
    with open('price.txt', 'r', encoding='utf8') as f:  # price.txt右下角为什么编码,则encoding为什么编码
        price_dict = f.read()
        price_dict = eval(price_dict)  # type:dict # 获取奖品字典

    return price_dict


def select_price(price_dict):
    """选择奖品"""
    price_self = dict()

    # 打印商品
    for k, v in price_dict.items():
        print(f'奖品编号:{k} {v}')

    # 获取奖品的两次循环
    for i in range(2):
        price_choice = input('请输入你需要的奖品编号:')

        if not price_choice.isdigit():
            print("恭喜你已经获得一次奖品,奖品为空!并且请输入正确的奖品编号!")
            continue

        price_choice = int(price_choice)

        if price_choice not in price_dict:
            print('你想多了吧!')
        else:
            price_get = price_dict[price_choice]
            print(f'恭喜中奖:{price_get}')

            if price_self.get(price_get):
                price_self[price_get] += 1
            else:
                price_self[price_get] = 1

    print(f'恭喜你获得以下奖品:{price_self}')


def guess_age():
    """猜年龄函数"""
    print("欢迎来到猜年龄游戏")

    age = random.randint(18, 60)  # 随机一个数字,18-60岁
    count = 0  # 计数

    while count < 3:
        count += 1

        inp_age = input('请输入你想要猜的年龄:')

        # 判断是否为纯数字
        if not inp_age.isdigit():
            print('搞事就骂你傻逼')
            continue

        inp_age = int(inp_age)

        # 筛选年龄范围
        if inp_age > 60 or inp_age < 18:
            print('好好题目,18-60岁,非诚勿扰')
            continue

        # 核心逻辑
        if age == inp_age:
            print('猜中了,请选择你的奖品')
            price_dict = get_price_dict()
            select_price(price_dict)
            break

        elif age > inp_age:
            print('猜小了')
        elif age < inp_age:
            print('猜大了')

        continue


msg = '''
1: 登录
2: 注册
3: 猜年龄游戏
'''

func_dic = {
    '1': login,
    '2': register,
    '3': guess_age,
}

print(msg)

choice = input('请选择你需要的功能:')

func_dic[choice]()
posted @ 2026-01-24 13:55  Fart*  阅读(1)  评论(0)    收藏  举报