Question

湾创建一个模拟简单储蓄账户模拟的程序。首先询问用户初始余额（必须至少100美元，少于400,000美元）。只要用户想继续允许他们进行存款和取款 - 不要透支！用户完成后，输出最终余额。（建议......使用类似的菜单： 1.存款 2.退出 3.退出）

balance = int(input("Enter initial balance: $ "))

while balance <= 100 or balance >= 400000:
    print ("Invalid Amount!")
    balance = int(input("Ener valid amount: $ "))

deposit = 0
withdraw = 0

if balance >= 100 and balance <= 400000:
    while ans != 3: 
        print("""
    1. Deposit
    2. Withdrawal
    3. Quit
    """)
ans = int(input("What would you like to do? Please enter the appropriate     number. "))
if ans == 1:
    deposit = int(input("\n How much would you like to deposit: $")
    balance = balance + deposit
elif ans == 2:
    withdraw = int(input("\n How much would you like to withdraw: $")
    if (balance - withdraw) < 0
        withdraw = int(input("\n Tried to withdraw too much! How much would  you like to withdraw: $")
        balance = balance - withdraw
elif ans == 3:
print("Your final balance is %d" %balance.)

Answer 1

您想错过前一行的)：

if ans == 1:
deposit = int(input("\n How much would you like to deposit: $"))

和另一个：

withdraw = int(input("\n How much would you like to withdraw: $"))

然后拖尾:：

if (balance - withdraw) < 0:

另一个)进一步：

    if (balance - withdraw) < 0
        withdraw = int(input("\n Tried to withdraw too much! How much would  you like to withdraw: $"))

，然后是%之后的空格（并摆脱.）：

print("Your final balance is %d" % balance)

Answer 2

你错过了一个＆＃39;）＆＃39;在第16行。

语法错误，无法找出原因（第17行）

2 个答案: