{}
# ā Mini Project 10 ā Banking Program š° (Function-Based)
# Demonstrates functions working together with a shared state variable.
balance = 0
def show_balance(bal):
print(f"\n š° Balance: ${bal:,.2f}")
def deposit():
amount = float(input(" Amount to deposit: $"))
if amount <= 0:
print(" ā Invalid amount.")
return 0
return amount
def withdraw(current_balance):
amount = float(input(" Amount to withdraw: $"))
if amount <= 0:
print(" ā Invalid amount.")
return 0
if amount > current_balance:
print(" ā Insufficient funds!")
return 0
return amount
while True:
print("\nāā MENU āāāāāāāāāāāāāāāāāāāāāā")
print(" 1. Show Balance")
print(" 2. Deposit")
print(" 3. Withdraw")
print(" 4. Exit")
choice = input(" Choose: ")
if choice == "1":
show_balance(balance)
elif choice == "2":
balance += deposit()
elif choice == "3":
balance -= withdraw(balance)
elif choice == "4":
show_balance(balance)
print(" Goodbye! š")
break
else:
print(" Invalid choice.")