如何在Python中將while循環（或for循環）的輸出轉換為列表（或字典）？

Question

反轉數字的循環

def is_reverse(number):

    reverse = 0
    while number > 0:

        remainder = number % 10
        reverse = reverse * 10 + remainder
        number = number // 10
    #print(reverse)
    return reverse

獲得一組滿足條件的年齡的函數

Think Python練習9.9的內容

def ages():

    number = 12
    while number < 100:

        x = number - is_reverse(number)
        if number > is_reverse(number) and 20 > x > 12:

            print(number)
            #break
        number = number + 1

ages()

Answer 1

只需創建一個列表，附加結果並返回該列表

def is_reverse(number):
    reverse = 0
    while number > 0:

        remainder = number % 10
        reverse = reverse * 10 + remainder
        number = number // 10
    #print(reverse)
    return reverse


def ages():

    number = 12
    li = [] 
    while number < 100:

        x = number - is_reverse(number)
        if number > is_reverse(number) and 20 > x > 12:

            li.append(number)
            #break
        number = number + 1
    return li
print ages()