我有一个具有5个不同选项的清单程序。 1-3工作，不久将有五个工作。选项4 "Search Inventory"是问题。通过选项1将项目添加到程序后，键入98，然后输入4。

这是完整的代码：

import os


name = []

qty = []

class Foo():
    def __init__(self, name, qty):
        self.name = name
        self.qty = qty

def menuDisplay():
    print ('=============================')
    print ('= Inventory Management Menu =')
    print ('=============================')
    print ('(1) Add New Item to Inventory')
    print ('(2) Remove Item from Inventory')
    print ('(3) Update Inventory')
    print ('(4) Search Item in Inventory')
    print ('(5) Print Inventory Report')
    print ('(99) Quit')
    CHOICE = int(input("Enter choice: "))
    menuSelection(CHOICE)

def menuSelection(CHOICE):

    if CHOICE == 1:
        print('Adding Inventory')
        print('================')
        new_name = input('Enter the name of the item: ')
        name.append(new_name)
        new_qty = int(input("Enter the quantity of the item: "))
        qty.append(new_qty)
        CHOICE = int(input('Enter 98 to continue or 99 to exit: '))
    if CHOICE == 98:
        menuDisplay()
    elif CHOICE == 99:
        exit()
    elif CHOICE == 2:
        print('Removing Inventory')
        print('==================')
        removing = input('Enter the item name to remove from inventory: ')
        indexdel = name.index(removing)
        name.pop(indexdel)
        qty.pop(indexdel)
        CHOICE = int(input('Enter 98 to continue or 99 to exit: '))
    if CHOICE == 98:
        menuDisplay()
    elif CHOICE == 99:
        exit()
    elif CHOICE == 3:
        print('Updating Inventory')
        print('==================')
        item = input('Enter the item to update: ')
        update = int(input("Enter the updated quantity. Enter 5 for additional or -5 for less: "))
    if update >= 0:
        qty[name.index(item)] += update
        print("Update made")
    CHOICE = int(input('Enter 98 to continue or 99 to exit: '))
    if CHOICE == 98:
        menuDisplay()
    elif CHOICE == 99:
        exit()
    elif update <= -1:
        qty[name.index(item)] -= update
        print("Update Made")
        CHOICE = int(input('Enter 98 to continue or 99 to exit: '))
    if CHOICE == 98:
        menuDisplay()
    elif CHOICE == 99:
        exit()
    elif CHOICE == 4:
        print('Searching Inventory')
        print('===================')
        search = input('Enter the name of the item: ')
        if search == name:
            print ('Item:     ', name.index(search))
            print ('Quantity: ', qty.index)
            print ('----------')
        if search != name:
            print("Item not in inventory")
    CHOICE = int(input('Enter 98 to continue or 99 to exit: '))
    if CHOICE == 98:
            menuDisplay()
    elif CHOICE == 99:
        exit()
    elif CHOICE == 5:
        print('Current Inventory')
        print('=================')
        input('Enter the name of the item: ')
        CHOICE = int(input('Enter 98 to continue or 99 to exit: '))
    if CHOICE == 98:
        menuDisplay()
    elif CHOICE == 99:
        exit()
        printInventory()
    elif CHOICE == 99:
        exit()

menuDisplay()