def main():
if v.login():
o = Operation()
while True:
choice = input("请选择需要办理的业务:")
if choice == "1": # 开户
o.register()
elif choice == "2": # 查询
o.query()
elif choice == "3": # 还款
o.repay_money()
elif choice == "4": # 贷款
o.get_money()
elif choice == "5": # 转账
o.trans_money()
elif choice == "6": # 改密
o.change_pwd()
elif choice == "7": # 锁卡
o.lock()
elif choice == "8": # 解卡
o.unlock()
elif choice == "9": # 补卡
o.new_card()
elif choice == "0": # 退出
o.save()
break
