个人帐簿管理系统记录某人每月的全部收入及各项开支情况，包括食品消费，房租，子女教育费用，水电费，医疗费，储蓄等。

进入系统后可以输入和修改某月的收支情况，可以对每月的开支从小到大进行排序，

可以根据输入的月份查询每月的收支情况。基本要求如下：

1)建立一个文件，包括某人5个月的收支情况，能对文件中的信息进行扩充（追加），修改和删除；

2)完成对每月的开支排序，以及完成系统查询功能。

3)可以自己扩充系统功能-Personal account management system records a person s monthly income and all expenses, including food consumption, rent, children s education, utilities, medical expenses, savings and so on.

Enter the system can enter and modify a month s revenue and expenditure, you can spend small to large monthly to sort,

Monthly revenue and expenditure can be inquired according to the input month. The basic requirements are as follows:

1) the establishment of a document, including a person 5 months of revenue and expenditure, the information in the document to expand (additional), modify and delete

2) to complete the monthly spending sort, and complete the system query.

3) can expand their own system functions