如何在Python中的每个命令之后显示所有输入

我有个问题

我想在“查看”命令中显示所有记录，但它只显示最后一条记录

我如何解决这个问题

请帮帮我，谢谢

我的代码：

initial_money = int(input('How much money do you have? ')) 

def records():
    return

def add(records):
    records = input('Add an expense or income record with description and amount:\n').split()
    global rec
    rec = records[0]
    global amt
    amt = records[1]
    global initial_money
    initial_money += int(amt)
    
def view(initial_money, records):
    print("Here's your expense and income records:") 
    print("Description          Amount")
    print("-------------------  ------")
    print('{name:<20s} {number:<6s}'.format(name = rec,number = amt))
    print('Now you have {} dollars.'.format(initial_money))

while True:
    command = input('\nWhat do you want to do (add / view / delete / exit)? ') 
    if command == 'add':
        records = add(records)
    elif command == 'view':
        view(initial_money, records)

我想要的输出：

-------------------  ------
tomato               -50
salary               100
Now you have 150 dollars.   

---

您需要在插入的记录列表中创建记录。当前，每次调用add时都会覆盖它

在主循环之外创建一个数组

在主循环中，将调用的结果推送到视图函数的数组中

然后需要在数组上循环以查看所有结果

---

另外，为了获得额外的好处，停止在add函数中使用global，这被认为是一种不好的形式

您需要在插入的记录列表中创建记录。当前，每次调用add时都会覆盖它

在主循环之外创建一个数组

在主循环中，将调用的结果推送到视图函数的数组中

然后需要在数组上循环以查看所有结果

---

还有一点值得注意的是，不要在add函数中使用global，它被认为是糟糕的形式

我将使用字典来保存它们：

initial_money = int(input('How much money do you have? ')) 

mr = {}

def records():
    return

def add(records):
    records = input('Add an expense or income record with description and amount:\n').split()
    global rec
    rec = records[0]
    global amt
    amt = records[1]
    global mr
    global initial_money
    mr[rec] = int(amt)
    initial_money += mr[rec]
    
    
def view(initial_money, records):
    print("Here's your expense and income records:") 
    print("Description          Amount")
    print("-------------------  ------")
    for r,a in mr.items():
      print('{name:<20s} {number:<6s}'.format(name = r,number = str(a)))

    print('Now you have {} dollars.'.format(initial_money))

while True:
    command = input('\nWhat do you want to do (add / view / delete / exit)? ') 
    if command == 'add':
        records = add(records)
    elif command == 'view':
        view(initial_money, records)

---

我将使用字典来保存它们：

initial_money = int(input('How much money do you have? ')) 

mr = {}

def records():
    return

def add(records):
    records = input('Add an expense or income record with description and amount:\n').split()
    global rec
    rec = records[0]
    global amt
    amt = records[1]
    global mr
    global initial_money
    mr[rec] = int(amt)
    initial_money += mr[rec]
    
    
def view(initial_money, records):
    print("Here's your expense and income records:") 
    print("Description          Amount")
    print("-------------------  ------")
    for r,a in mr.items():
      print('{name:<20s} {number:<6s}'.format(name = r,number = str(a)))

    print('Now you have {} dollars.'.format(initial_money))

while True:
    command = input('\nWhat do you want to do (add / view / delete / exit)? ') 
    if command == 'add':
        records = add(records)
    elif command == 'view':
        view(initial_money, records)

---

哦，真的，所以我应该删除全局和使用循环。哦，真的，所以我应该删除全局和使用循环。这解决了我的问题，但总金额似乎不正确。哦，现在是真的。谢谢！它解决了我的问题，但总的钱似乎不正确。哦，现在是真的。谢谢！

How much money do you have? 100         

What do you want to do (add / view / delete / exit)? add
Add an expense or income record with description and amount:
tomato -50

What do you want to do (add / view / delete / exit)? add
Add an expense or income record with description and amount:
salary 100

What do you want to do (add / view / delete / exit)? view
Here's your expense and income records:
Description          Amount
-------------------  ------
tomato               -50   
salary               100   
Now you have 150 dollars.