Python If Statement中的函數未運行，盡管滿足條件

我想你想在position變為0.1時停止程序，同時你的代碼正在運行一個infinte循環，因為它不處理position value不為0.0或0.1的情況：嘗試以下代碼：

def main():
        print('Time to test out movement.')
        Position = 0.0
        while Position != 9.9:
            Position = Movement(Position)

        print('Test concluded.')

def Movement(Position):
    if Position == 0.0:
        print('You have entered this old and decrepid dungeon in hopes of finding some kind of riches.')
        print('What would you like to do?')
        print('1-Move north to room 0.1')
        PChoice = float(input())
        #print(PChoice)
        if PChoice == 1:
            return 0.1
        else:
            return PChoice

    elif Position == 0.1:
        print('Movement successful.')
        return 9.9
    else:
        PChoice = float(input())
        return PChoice

if __name__ == '__main__':
    main()