写入文本文件不会保存用户输入 PYTHON [重复]

Question

我正在尝试制作股票列表显示和编辑器项目。我试图让用户输入他们拥有的产品和库存数量，但它没有保存到 txt 文件中。

我哪里出错了，我没有收到任何错误。

def showStock(f):
    print(f.read())
    userDecide = input("""
To add items to your stock list please type 'ADD'
To remove items from your stock please type 'REMOVE'
To close application type 'CLOSE'
""")
    if userDecide.lower() == 'add':
        addStock(f)
    elif userDecide.lower() == 'remove':
        delStock()
    elif userDecide.lower() == 'close':
        print('Closing...')
        exit()
    else:
        print('Response does not match criteria.')

def addStock(f):
    item_add = input("""
Please enter the name of the item you wish to add.
: """)
    f.write(item_add+': ')
    quantityItem = input("""
Item added, please enter the current quantity for the item.
: 
""")
    f.write(quantityItem+'\n')
    userDecide = input("""
Quantity added. All information has been saved. If you need to;
If you need to add more items type 'ADD'
If you need to delete items type 'REMOVE'
If you would like to exit application type 'CLOSE'
""")
    if userDecide.lower() == 'add':
        addStock(f)
    elif userDecide.lower() == 'remove':
        delStock()
    elif userDecide.lower() == 'close':
        print('Closing...')
        exit()
    else:
        print('Response does not match criteria.')
    exit()

with open('CurrentStock.txt', 'w+') as f:
    print("""
    =====================================================
              Welcome to Max's stock project.
    =====================================================

    Current stock:
    """)

    showStock(f)
    addStock(f)

Answer 1

错误模式从 w+ 更改为 r+ 并且还删除了 addStock 以防止无限循环。

def showStock(f):
    print(f.read())
    userDecide = input("""
To add items to your stock list please type 'ADD'
To remove items from your stock please type 'REMOVE'
To close application type 'CLOSE'
""")
    if userDecide.lower() == 'add':
        addStock(f)
    elif userDecide.lower() == 'remove':
        delStock()
    elif userDecide.lower() == 'close':
        print('Closing...')
        exit()
    else:
        print('Response does not match criteria.')

def addStock(f):
    item_add = input("""
Please enter the name of the item you wish to add.
: """)
    f.write(item_add+': ')
    quantityItem = input("""
Item added, please enter the current quantity for the item.
: 
""")
    f.write(quantityItem+'\n')
    userDecide = input("""
Quantity added. Info will be saved on close. If you need to;
If you need to add more items type 'ADD'
If you need to delete items type 'REMOVE'
If you would like to exit application type 'CLOSE'
""")
    if userDecide.lower() == 'add':
        addStock(f)
    elif userDecide.lower() == 'remove':
        delStock()
    elif userDecide.lower() == 'close':
        print('Closing...')
        exit()
    else:
        print('Response does not match criteria.')
    exit()

def delStock(f):
    #Working on

with open('CurrentStock.txt', 'r+') as f:
    print("""
    =====================================================
              Welcome to Max's stock project.
    =====================================================

    Current stock:
    """)

    showStock(f)