Question

我不确定如何创建循环以将数字除以2？请帮忙。我知道你可以将数字除以2而不知道如何创建循环以保持分割直到它小于1.0。

Answer 1

这取决于您之后究竟是什么，因为它不能从问题中清除。将数字除以零直到小于1.0的函数将如下所示：

def dividingBy2(x):

    while x > 1.0:
        x = x/2

但除了理解while循环之外，这没有任何意义，因为它没有给你任何信息。如果你想看看在数字小于1.0之前可以除以2的次数，那么你总是可以添加一个计数器：

def dividingBy2Counter(x):

    count = 0

    while x > 1.0:
        x = x/2
        count = count + 1

    return count

或者如果你想看到每个数字变得越来越小：

def dividingBy2Printer(x):

    while x > 1.0:
        x = x/2
        print(x)

Answer 2

b=[]  #initiate a list to store the result of each division

#creating a recursive function replaces the while loop
#this enables the non-technical user to call the function easily

def recursive_func(a=0):  #recursive since it will call itself later

    if a>=1:  #specify the condition that will make the function run again
        a = a/2 #perform the desired calculation(s)
        recursive_func(a) #function calls itself
        b.append(a)    #records the result of each division in a list

#this is how the user calls the function as an example
recursive_func(1024)
print (b)

使用python如何重复将数字除以2直到小于1.0？

2 个答案: