GPT答：

7i24.cn

代码示例如下：

acctInfo = {
 "name": "John Smith",
 "num": "1234567890",
 "cash": 10000
}

def deposit(amt):
 acctInfo['cash'] += amt
 print("成功存入：" + str(amt))
  
def withdraw (amt):
 if amt > acctInfo['cash']:
   print("账户余额不足")
 else:
   acctInfo['cash'] -= amt
   print("成功取出：" + str(amt))
  
  
def balance():
 print("账户姓名：" + acctInfo['name'])
 print("账号：" + acctInfo['num'])
 print("账户余额：" + str(acctInfo['cash']))
 
 
balance()
deposit(1000)
withdraw(10000)
balance()