为什么我的 while not 循环有两个条件只使用第一个条件而忽略第二个条件？

Question

我正在尝试设置一个 while not 循环，该循环使用带有“或”的两个条件。 本质上，我要求用户输入贷款类型，如果未输入两种贷款中的一种，它会打印出它不是有效的贷款类型并再次要求输入。 但是，我的代码仅适用于第一个条件，而第二个条件被忽略。

这是我的代码如下：

loan = input('Enter the type of mortgage loan for the purchase of this property: \n').lower() #Asks for the type of mortgage loan
while not loan == 'fha' or loan == 'conventional': #Checks if input is fha or conventional, if not asks for input again
    print("Sorry, that is not a valid loan type.")
    loan = input('Enter the type of mortgage loan for the purchase of this property: \n').lower()

谢谢您的帮助！

Answer 1

一个不太容易混淆的选择是：

loan = input('Enter the type of mortgage loan for the purchase of this property: \n').lower() #Asks for the type of mortgage loan
while loan not in ("fha", "conventional"):
    print("Sorry, that is not a valid loan type.")
    loan = input('Enter the type of mortgage loan for the purchase of this property: \n').lower()