本程序将用户信息设计成一个类，使用对象模拟对 象数据库，将用户信息保存到数据文件中。并实现打开 文件，保存文本，添加&删除用户信息等功能。 在运行的过程中，用户须先填上自己的姓名、性别 ，然后选择自己所在省份、城市。点击“Add”按钮， 该用户信息即可添加进面板左边的文本区，点击 “Delete”时，可删除该用户的信息，点击“Open”可 打开一个文件，点“Prior”可将该用户信息上移一行， “Next”下移一行，“First”上移至文本区第一行， “Last”信息下移至最后一行,“Save”保存左边的文 件为一个文本文档。-user information designed as a category, the use of object oriented database, user information stored data files. Open the document and to achieve and preserve the text, add users to delete information capabilities. In the course of operation, users must fill in their names, sex, which then choose their own provinces, cities. Click on the "Add" button, the user can add the information into the text of the left panel, click on "Delete", the deletion of the user's information, click on "Open" can open a file, click on "Prior" user information may be on his shift, "Next" his depression "First" shifted to the first line of text area, "Last" Information moved to the last line, "Save" to preserve the documents le