为什么我的程序会在我有一段时间的时候打印这个字符串！=字符串

Question

你好，我做了这个程序，要求用户输入选择打印，排序1，排序2或退出

usrinpt=0

while usrinpt != "quit":    #if usrinpt == quit then no if statements right?
    usrinpt = input("Enter choice Print, Sort1 (distance), Sort2 (price) or Quit : ")
    usrinpt = usrinpt.lower()
    if usrinpt == "print":
        PrintList(mat)
        pass
    elif usrinpt == "sort1":
        SelectionSortDistorPrice(mat,0)
        PrintList(mat)
        pass
    elif usrinpt == "sort2":
        SelectionSortDistorPrice(mat, 1)
        PrintList(mat)
       pass
    elif usrinpt != "quit"or"sort1"or"sort2":   #why does it print the string even when i enter quit?
        print("please enter a valid choice")
        pass

• 选择“退出”的预期结果是程序停止
• 实际结果是程序打印“请输入有效选项”，然后退出

如果输入了一个未声明的选项，如何将其修改为只打印该字符串？你知道吗

Answer 1

elif usrinpt not in ["quit","sort1","sort2"]: