Python怎么实现抽奖系统

# 奖品列表和对应的概率，和为100

prizes = {"一等奖": 10,"二等奖": 20,"三等奖": 30,"参与奖": 40 }

import random

# 奖品列表和对应的概率

prizes = {"一等奖":10,"二等奖":20,"三等奖":30,"参与奖":40}

#我们可以看做：

# 一等奖:(0,10]

# 二等奖：(10,30]

# 三等奖：(30,60]

# 参与奖：(60,100]

# 抽奖函数

def lottery():

    # 生成一个1~100之间的随机数

    lucky_number = random.randint(0,100)

    # 初始化区间值和奖品名称

    prob_sum_start = 0

    prob_sum_end = 0

    prize_name = None

    # 遍历奖品列表

    for name, prob in prizes.items():

        # 累加后一个区间值

        prob_sum_end += prob

        # 如果随机数在计算区间内，则中奖

        if prob_sum_start= prob_sum_end:

            prize_name = name

            break

# 累加前一个区间值

        prob_sum_start = prob

    #返回随机值和中奖产品

    return lucky_number,prize_name

# 奖品列表和对应的概率，和为100

prizes = {"一等奖": 10,"二等奖": 20,"三等奖": 30,"参与奖": 40 }

import random

# 奖品列表和对应的概率

prizes = {"一等奖": 10, "二等奖": 20, "三等奖": 30, "参与奖": 40}

# 抽奖函数

def lottery():

    # 生成一个1~100之间的随机数

    lucky_number = random.randint(1, 100)

    print(lucky_number)

    # 初始化概率总和和奖品名称

    prob_sum = 0

    prize_name = None

    # 遍历奖品列表

    for name, prob in prizes.items():

        # 累加概率总和

        prob_sum += prob

        # 如果随机数小于等于概率总和，则中奖

        if lucky_number <= prob_sum:

            prize_name = name

            break

    return prize_name

import random

# 奖品列表和对应的概率

prizes = {"一等奖": 10, "二等奖": 20, "三等奖": 30, "参与奖": 40}

#白名单列表

whitelist = ["Tom", "Jerry", "Lucy"]

# 抽奖函数

def lottery(white_user):

    # 生成一个1~100之间的随机数

    lucky_number = random.randint(1, 100)

    print(lucky_number)

    # 初始化概率总和和奖品名称

    prob_sum = 0

    prize_name = None

    #判断在白名单内，中一等奖

    if white_user in whitelist:

        return "恭喜您中一等奖"

        # 遍历奖品列表

    else:

        for name, prob in prizes.items():

            # 累加概率总和

            prob_sum += prob

            # 如果随机数小于等于概率总和，则中奖

            if lucky_number <= prob_sum:

                prize_name = name

                break

    return prize_name

import random

# 奖品列表和对应的概率

prizes = {"一等奖": 10, "二等奖": 20, "三等奖": 30, "参与奖": 40}

#已参加另外一个活动列表

active_user = []

#加法活动

def addition(name):

    active_user.append(name)

    return name+"参加了活动"

# 抽奖函数

def lottery(name):

    # 生成一个1~100之间的随机数

    lucky_number = random.randint(1, 100)

    # 初始化概率总和和奖品名称

    prob_sum = 0

    prize_name = None

    # 判断在白名单内，中一等奖

    if name not in active_user:

        return "很抱歉，您没有资格参与活动"

    else:

        # 遍历奖品列表

        for name, prob in prizes.items():

            # 累加概率总和

            prob_sum += prob

            # 如果随机数小于等于概率总和，则中奖

            if lucky_number <= prob_sum:

                prize_name = name

                break

    return prize_name

#测试一下

print(lottery("Tom"))#如果没有参与加法活动，来参与，无法抽奖

print(addition("Tom"))#Tom先来参与加法活动再去参与活动

print(lottery("Tom"))#参与活动抽奖

import random

# 奖品列表和对应的概率

prizes = {"一等奖": 1, "二等奖": 2, "三等奖": 3, "参与奖": 94}

lottery_num = 0  # 记录已经抽中的一等奖、二等奖、三等奖的次数

# 抽奖函数

def lottery():

    # 生成一个1~100之间的随机数

    global lottery_num

    lucky_number = random.randint(1, 100)

    print(lucky_number,lottery_num)

    # 初始化概率总和和奖品名称

    prob_sum = 0

    prize_name = None

    # 遍历奖品列表

    for name, prob in prizes.items():

        # 累加概率总和

        prob_sum += prob

        # 如果随机数小于等于概率总和，则中奖

        if lucky_number <= prob_sum:

            prize_name = name

            break

    if prize_name=="参与奖":

        lottery_num += 1

        if lottery_num == 10:

            return "恭喜你，中一等奖"

        return prize_name

    else:

        lottery_num=0

        return prize_name

for i in range(10):

    print(lottery())