有安全需求的选题系统

完整的小型选课系统网站开发源码，实现了： 1：数据库密码为加密存储 2：访问控制：不同类型的user，其权限由usertype规定 3：建立视图用了安全读取数据库中的数据： create view tb_userview as select usernc,usertype,userpwd from tb_user create view tb_userncview as select id,truename,usertype,titleid,usernc,userpwd from tb_user create view tb_leavewordview as select * from tb_

 属性            大小     日期    时间   名称
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     目录           0  2017-09-28 03:22  leaveword\
     文件         174  2016-12-21 18:26  leaveword\.buildpath
     文件         511  2016-12-21 18:26  leaveword\.project
     目录           0  2017-09-27 10:48  leaveword\.settings\
     文件          81  2016-12-21 17:59  leaveword\.settings\org.eclipse.php.core.prefs
     文件         258  2016-12-23 19:26  leaveword\bottom.php
     文件         363  2017-09-27 22:38  leaveword\cant.php
     文件         620  2017-09-28 02:31  leaveword\chkuserlogin.php
     文件         689  2017-09-27 12:39  leaveword\code.php
     文件         140  2017-09-27 11:40  leaveword\conn.php
     目录           0  2017-09-27 10:48  leaveword\css\
     文件        1460  2007-10-12 10:40  leaveword\css\style.css
     目录           0  2017-09-27 10:48  leaveword\data\
     目录           0  2017-09-27 10:48  leaveword\data\db_messagebook\
     文件          65  2007-10-12 11:04  leaveword\data\db_messagebook\db.opt
     文件         528  2007-10-30 10:52  leaveword\data\db_messagebook\tb_leaveword.MYD
     文件        2048  2007-10-30 10:52  leaveword\data\db_messagebook\tb_leaveword.MYI
     文件        8700  2007-10-12 11:06  leaveword\data\db_messagebook\tb_leaveword.frm
     文件         804  2007-10-15 14:14  leaveword\data\db_messagebook\tb_user.MYD
     文件        2048  2007-10-15 14:42  leaveword\data\db_messagebook\tb_user.MYI
     文件        8944  2007-10-15 14:14  leaveword\data\db_messagebook\tb_user.frm
     文件         262  2017-09-27 21:04  leaveword\deleteleaveword.php
     文件        2967  2017-09-28 02:42  leaveword\editleaveword.php
     目录           0  2017-09-27 10:48  leaveword\images\
     文件       46080  2011-08-04 16:53  leaveword\images\Thumbs.db
     文件       33900  2016-12-25 16:00  leaveword\images\banner.jpg
     文件         159  2007-10-12 11:00  leaveword\images\biao.gif
     文件         775  2011-04-29 16:33  leaveword\images\bottom.gif
     文件         186  2007-10-12 10:13  leaveword\images\dh_back.gif
     文件         276  2011-04-29 16:39  leaveword\images\dh_back_1.gif
     目录           0  2017-09-27 10:48  leaveword\images\face\
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