def binary_search(list,item):
    low = 0
    high = len(list)-1

    while low <= high:
        mid = (low + high)//2
        guess = list[mid]
        if guess == item:
            return mid
        if guess > item:
            high = mid - 1
        else:
            low = mid + 1
    return
 
 None

my_list = [1,3,5,7,9]

print(binary_search(my_list,3))
print(binary_search(my_list,-1))

#################猜年齡#################
import random
age = random.randint(1, 10)
for guess in range(1, 6):  # 設置次數
    choice = int(input())  # 輸入玩家猜測的年齡

if choice < age:  # 判讀玩家輸入的年齡是否等於正確的年齡
 

    print(‘小埋的提示：你猜小了（；´д｀）ゞ。。。。‘)

elif choice > age:
    print(‘小埋的提示：乃猜大了惹(＞﹏＜)～～‘)

else:
    print(‘猜了‘ + str(guess) + ‘次，你就猜對惹～hiu(^_^A;)～～～‘)
    break

# 判斷猜測次數
if choice == age:
    print(‘搜噶～那麽小埋下線了～拜拜～（￣︶￣）↗‘)
else:
    print(‘哎呀～你還是木有猜對啊～但是你只有5次機會誒～怎麽辦啊～‘)
    print
 
(‘那好吧～心軟的小埋只好告訴你，我才‘ + str(age) + ‘歲‘)

############# 找出最大值和最小值 #############
def Min_Max(*arg):
    list = []
    flag = True
    while flag:
        item = input("請輸入數值，‘ok‘結束輸入：")
        if item == "ok":
            flag = False
        else:
            list.append(item)

    min_n = list[0]
    max_n = list[0]
    for item in list:
        if item < min_n:
            min_n = item
        if item > max_n:
            max_n = item
    return {"max": max_n, "min": min_n}

res = Min_Max()
print(res)

三個猜數字遊戲代碼（Python）