觸發else語句后，如何使該程序重新開始？

Question

我很好奇我如何使該程序在觸發else語句后自動提示用戶另一個值。

tires = float(input('How many tires would you like?'))
if tires == 2:
    print('That will be $250')

if tires == 4:
    print('That will be $400')

else:
    print('That is not a valid input, please try again')

Answer 1

將整個內容包裝在while循環中：

while True:
    tires = float(input('How many tires would you like?'))

    if tires == 2:
        print('That will be $250')
        break

    elif tires == 4:
        print('That will be $400')
        break

    else:
        print('That is not a valid input, please try again')
        # keep looping