出现问题：'int' object is not callable
check acc avaible:select * from account where accid=1601
check acc avaible:select * from account where accid=1602
has_enough_money:select * from account where accid=1601 and money>200
reduce_money:update account set money=money-200 where accid=1601
出现问题：'int' object is not callable
