在线考试系统

实现学生考试，查看成绩，老师查看学生成绩，对试题添删查，管理员对用户管理

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Model;
using DAL;

namespace BLL
{
    public class ClassBiz
    {
          public static ClassInfo GetClassById（string ClassId）
        {
            return ClassAccess.GetClassById（ClassId）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-10-30 13:40  Exam\
     文件      159873  2015-10-22 09:23  Exam\200772783351_01.jpg
     目录           0  2015-10-23 08:05  Exam\BLL\
     目录           0  2015-10-27 09:59  Exam\BLL1\
     目录           0  2015-10-27 09:58  Exam\BLL1\bin\
     目录           0  2015-10-27 09:58  Exam\BLL1\bin\Debug\
     文件        2713  2015-10-27 10:14  Exam\BLL1\BLL1.csproj
     文件         156  2015-10-27 09:58  Exam\BLL1\Class1.cs
     目录           0  2015-10-27 09:58  Exam\BLL1\obj\
     目录           0  2015-10-27 10:13  Exam\BLL1\obj\Debug\
     文件           0  2015-10-27 10:13  Exam\BLL1\obj\Debug\build.force
     文件       12381  2015-10-27 10:13  Exam\BLL1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件           0  2015-10-27 09:58  Exam\BLL1\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
     文件           0  2015-10-27 09:58  Exam\BLL1\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
     文件           0  2015-10-27 09:58  Exam\BLL1\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
     目录           0  2015-10-27 09:58  Exam\BLL1\obj\Debug\TempPE\
     目录           0  2015-10-27 09:58  Exam\BLL1\Properties\
     文件        1050  2015-10-27 09:58  Exam\BLL1\Properties\AssemblyInfo.cs
     文件         625  2015-10-27 09:58  Exam\BLL1\ScoreBiz.cs
     文件         649  2015-10-27 09:58  Exam\BLL1\Tb_adminBLL.cs
     文件         474  2015-10-27 09:58  Exam\BLL1\Tb_classBLL.cs
     文件        1469  2015-10-27 09:59  Exam\BLL1\Tb_studentBLL.cs
     文件        1241  2015-10-27 09:59  Exam\BLL1\Tb_subjectBLL.cs
     文件        1350  2015-10-27 09:59  Exam\BLL1\Tb_teacherBLL.cs
     文件        1134  2015-10-27 09:59  Exam\BLL1\TestManager.cs
     目录           0  2015-10-23 08:05  Exam\BLL\bin\
     目录           0  2015-10-30 14:49  Exam\BLL\bin\Debug\
     文件        7680  2015-10-30 14:49  Exam\BLL\bin\Debug\BLL.dll
     文件       32256  2015-10-30 14:49  Exam\BLL\bin\Debug\BLL.pdb
     文件       24576  2015-10-30 14:49  Exam\BLL\bin\Debug\DAL.dll
     文件       52736  2015-10-30 14:49  Exam\BLL\bin\Debug\DAL.pdb
............此处省略375个文件信息