成功信息网www.020chenggong.com这里是我的毕业设计，用c#编写——学校图书馆管理系统。全部仿真测试过，毕业论文获得优秀，分享给大家。1.登陆界面主要代码：publicpartialclassLoginForm:Form{publicstaticstringuacc;publicstaticstringupsw;publicstaticstringuname;publicstaticstringusex;publicstaticstringupart;publicstaticstringuright;publicLoginForm(){InitializeComponent();}privatevoidloginbtn_Click(objectsender,EventArgse){if(this.useracctxt.Text.Trim()==""&&this.pswtxt.Text==""){MessageBox.Show("请输入您的用户名和密码！","提示！");return;}try{stringsql;sql="select*fromtb_userwhereuacc='"+this.useracctxt.Text+"'andupsw='"+this.pswtxt.Text+"'www.feipin100.com";OleDbDataReaderdr=DBHelp.OleReader(sql);dr.Read();if(dr.HasRows){uacc=this.useracctxt.Text;upsw=this.pswtxt.Text;uname=dr["uname"].ToString();usex=dr["usex"].ToString();upart=dr["upart"].ToString();uright=dr["uright"].ToString();MainFormaf=newMainForm(this);this.Hide();this.useracctxt.Clear();this.pswtxt.Clear();af.Show();}else{MessageBox.Show("账号或密码错误！","提示！");this.useracctxt.Clear();this.pswtxt.Clear();this.useracctxt.Focus();}}catch(Exception){MessageBox.Show("数据库无法连接！","警告！");}}privatevoidcancelbtn_Click(objectsender,EventArgse){Application.Exit();}privatevoidLoginForm_Closing(objectsender,FormClosingEventArgse){Application.Exit();}}2.主界面（图较小，自己可以拉大点）主要代码就不写了，很简单。3.权限设置主要代码：publicpartialclassRightSet:Form{publicRightSet(){InitializeComponent();}privatevoidRightSet_Load(objectsender,EventArgse){this.rightbox.SelectedIndex=0;//this.treeright.ExpandAll();Fill();}privatevoidokbtn_Click(objectsender,EventArgse){if(this.txtnum.Text==string.Empty){MessageBox.Show("请输入最大借阅图书数量！","提示！");return;}if(this.txtday.Text==string.Empty){MessageBox.Show("请输入最大借阅图书时间！","提示！");return;}if(this.txtcost.Text==string.Empty){MessageBox.Show("请输入借书押金金额！","提示！");return;}if(this.txtfine.Text==string.Empty){MessageBox.Show("请输入超期罚款金额！","提示！");return;}if(this.txttim.Text==string.Empty){MessageBox.Show("请输入图书遗失罚款倍数