除了对话界面，其他界面完成版
Signed-off-by: ycf <539513963@qq.com>
注册页面加验证了

Signed-off-by: 0Osummer <825549402@qq.com>
Merge branch 'summer' of git@github.com:Ideal2014/Ideal.git
Merge branch 'ycf' of git@github.com:Ideal2014/Ideal.git

Conflicts:
	BLL/OrderRecord.cs
	IDAL/ITeacher.cs
	Ideal.sln
	Model/DataClasses.dbml
	Model/DataClasses.dbml.layout
	Model/DataClasses.designer.cs
	Model/Properties/Settings.Designer.cs
	WebFrontEnd/Global.asax
	WebFrontEnd/Home/Home.aspx.cs
	WebFrontEnd/MasterPage.master
	WebFrontEnd/MasterPage.master.cs
	WebFrontEnd/Student/Login.aspx
	WebFrontEnd/Student/Login.aspx.cs
	WebFrontEnd/Student/login.html
	WebFrontEnd/Teacher/Teacher.aspx.cs
DataClasses
Merge branch 'zln' of git@github.com:Ideal2014/Ideal.git

Conflicts:
	BLL/Balance.cs
	IBLL/IBalance.cs
	IDAL/IBalance.cs
	SQLServerDAL/Balance.cs
	SQLServerDAL/Book.cs
	WebFrontEnd/Book/Book.aspx.cs
	WebFrontEnd/MasterPage.master
	WebFrontEnd/MasterPage.master.cs
	WebFrontEnd/Teacher/TeacherMemAcctClass.aspx.cs
	WebFrontEnd/Teacher/TeacherMemTeaChoose.aspx.cs
delete useless files
Signed-off-by: 齐宇 <11301127@bjtu.edu.cn>