源代码自动生成构造函数后文示例将全部省略

usingusingSystem.Windows.Forms;namespaceTestEnum{publicpartialclassTestEnum:{//VisualStudioNet自动生成的构造函数，后文示例将全部省略publicTestEnum(){}enumMyEnum{a=101,b,c,d=201,e,f};//枚举privatevoidTestEnum_Load(objectsender,EventArgs{MyEnumx=MyEnum.f; MyEnumy=(MyEnum)202;stringresultxresult+=(int)x; result+="\n枚举数y代表枚举元素"+y;lblShow.Text=}}}usingusingSystem.Windows.Forms;namespaceTestStru{publicpartialclassTestStru:{struct //结构{//结构型的数据成publicintno;publicstringname;publiccharsex;publicintscore;//结构型的方法成publicstring{stringresultresult+="\n学号："+no; result+="\n："+name;result+="\n："+sex;resultnscore;return }privatevoidTestEnum_Load(objectsender,EventArgs{Student s.no=101;s.sex='男';s.score540;lblShow.Text=s.Answer(); lblShow.Text\n\n"+DateTime.Now;显}}}usingSystem;classTestConstant{staticvoidMain(string[]{ }}usingSystem;classTestVariable{staticvoidMain(string[]{inta=12,b=15,c,d,c=a+d=a-e=a*b;Console.Wriine("c={0}\td={1}\te={2}",c,d,e);}}usingusingSystem.Windows.Forms;namespaceTestVariable{publicpartialclassTestOperator:{privatevoidTestVariable_Load(objectsender,EventArgs{inti=5,j=5,p,p=(i++)+(i++)+q=(++j)+(++j)+stringt= lblShow.Text=i+t+j+t+p+t+}}}usingusingnamespace{publicpartialclassTestOperator:{privatevoidTestVariable_Load(objectsender,EventArgs{inta,b=5;charc1='A';a=c1; floatx=3;x lblShow.Text="a="+a; lblShow.Text\nxx;为字符串}}}usingusingSystem.Windows.Forms;namespaceTestVariable{publicpartialclassTestOperator:{privatevoidTestVariable_Load(objectsender,EventArgs{inti=25,j=12;boolk;stringresulti!=j的值为iresult"\ni!=j&&i>=j的值为ij&&iresult"\ni!=j&&i>=j+20+(ij&&ij20);result+="\nk=i!=j&&i>=j的值为"+(i!=j&&i>=j);lblShow.Text=result;}}}usingusingSystem.Windows.Forms;namespaceTestInterface{publicpartialclassTestInterface:{interface //接{string}classStudent:IStudent//类，以实现接{publicintno;publicstringname;publicstring{stringresultresult+="\n学号："+no;result+="\n："+name;returnresult;}}privatevoidbtnOk_Click(objectsender,EventArgs{Studenta=newStudent(); a.no=Convert.ToInt32(txtStuID.Text);=txtName.Text;lblShow.Text=a.Answer();}}}usingSystem;classoWorld{public {return"你好！我是强，。}publicstring{return"Hi!IamJackson,a}}class{delegatestring //委staticvoidMain(string[]{oWorldo=new MyDelegateh=newMyDelegate( );//创建委托对象并指向一个方法 h=newMyDelegate(o.oEN);}}2-10】usingSystem;classTestArray{staticvoidMain(string[]{int[] //数x=newint[5]{1,5,3,2,4}; y=newint[5];Array.Copy(x,y, //将数组x的5个元素到数组yConsole.Wriine("成功地从数组x到数组y，数组y各元素值如下：");for(inti=0;i<y.Length;i++){Console.Write("{0}\t",} for(inti=0;i<x.Length;i++){Console.Write("{0}\t",}}}usingusingSystem.Windows.Forms;usingSystem.Text;namespaceTestString{publicpartialclassTestString:{privatevoidTestString_Load(objectsender,EventArgs{string StringBuildersb=newStringBuilder();//创建可变字符串对象 sb.Insert(1,"京奥 s=sb.ToString(); s=s.Insert(s.Length,"2008");lblShow.Texts}}}usingusingSystem.Windows.Forms;namespaceTestIf{publicpartialclassTestInterface:{privatevoidbtnOk_Click(objectsender,EventArgs{charcConvert.ToChar(txtChar.Text);if{if{lblShow.Text母。}elseif{lblShow.Text}{lblShow.Text}}{lblShow.Text。}}}}2-13】usingSystem;classTestSwitch{staticvoid{Console.Wriine("服装类别：1=休闲装2=西装3=皮衣");Console.Write("请选择类别：");strings=intn=Convert.ToInt16(s); intt,cost=0; switch(n){cases=t=Convert.ToInt16(s);cost=t*150;case2:s=Console.ReadLine();t=Convert.ToInt16(s);cost=t*300;case3:s=t=Convert.ToInt16(s);cost=t*600;Console.Wriine("无效选择，请输入1、2或3！");}if(cost!={Console.Wriine("应付款{0}元.",}Console.Wriine("谢谢您的惠顾}}usingusingSystem.Windows.Forms;namespaceTestWhile{publicpartialclassTestWhile:{public //VisualStudio.Net自动{}privatevoidTestWhile_Load(objectsender,EventArgs{int } }}}usingSystem;classTestDoWhile{staticvoid{charc;intn=0;{cif(c>='A'&&c<='Z'||c>='a'&&c<={}}while(c!=Console.Wriine("该行中英文字母的个数为：{0}",}}usingusingSystem.Windows.Forms;namespaceTestFor{publicpartialclassTestFor:{public{}

privatevoidTestWhile_Load(objectsender,EventArgs{inti;intlongs1,s1=t=1; s2=100000; for(i=2;i<=30;i++){tt* s1s1 s2s2 }s1=s1/100; MessageBox.Show("百万富翁给陌生人"+s1+"元。\n陌生人给百万富翁"+s2+"元。}}}usingSystem;classTestForeach{staticvoid{string[]names=newstring[5];for(inti=0;i<names.Length;i++){}Console.Wriine("已输入的如下，请核对：");foreach(stringnameinnames){Console.Write("{0}\t",}}}usingSystem;classTestForeach{staticvoid{inti,j,for(i0;i7; {for(j6i;j0;j {Console.Write("}fork0;k2*i1;k++)//k表示在第i行的第k{}}}}2-21】usingSystem;classTestGoto{staticvoid{charfor(int {if(c=='*')break; }}}usingSystem;classTestContinue{staticvoid{charch_old,ch_new;{ch_new=(char)Console.Read();if(ch_new==ch_old)}}usingSystem;publicclass{publicstringName;publicintAge;publicstringAnswer(){returnstring.Format("：{0}，：{1}岁。}}class{staticvoid{p=new(); //并创建对p.Name=""; p.Age=25;Strings=p.Answer(); }}usingSystem;classCircle{privateconstfloatpi=3.14F,x0=0,y0=0;privatefloatr;privatefloatx,publicfloatR{{}{}}

returnif(value<0)r=0;r=publicfloatL{{}}}

return2*pi*class{staticvoid{Circlec=newCircle();c.RConvert.ToSingle(Console.ReadLine(段r中floatl=c.L;Console.Wriine("圆的周长为}}usingSystem;classCircle{privateconstfloatpi=3.14F,x0=0,y0=0;privatefloatr;publicfloatR{{}{}}

returnif(value<0)r=0;r=publicdoublePointDistance(floatx,floaty){if(x>R||y>R)returnPointpnewPoint(x, return }classPoint{privatefloatX;privatefloatpublicPoint(floatx,float{}publicdoubleDistance(){return}}}classTestClassMember{staticvoid{Circlec=newCircle();c.R=floatxConvert.ToSingle(Console.ReadLine());floatyfloatd=(float)c.PointDistance(x,y);if(d!=0&&d<=c.R)Console.Wriine("该点离圆心的距离为：{0}",}}

Console.Wriine("该点不是圆面上的点。usingSystem;classSwaper{publicvoidSwap(intx,int {inttemp;temp=x;x=y;y=Console.Wriine("交换之后：{0}，{1}",x,}}class{staticvoid {Swapers=newSwaper(); inta=Convert.ToInt32(Console.ReadLine());intb=Convert.ToInt32(Console.ReadLine()); Console.Wriine("交换之前：{0}，{1}",a,b);}}usingSystem;classSwaper{publicvoidSwap(refintx,refint //被调用方，其中x和y是型形{Console.Wriine("形参的值未交换：{0}，{1}",x,y);inttemp;temp=x;x=y;y=Console.Wriine("形参的值已交换：{0}，{1}",x,}}class{staticvoid {Swapers=newSwaper(); intaConvert.ToInt32(Console.ReadLine());intbs.Swap(refa,refb); Console.Wriine("实参的值已交换：{0}，{1}",a,b);}}usingSystem;classyzer{publicvoidSplitPath(stringpath,outstringdir,outstring{intfor(i=path.Length;i>=0;i--){charc=path[i-if(c=='\\'||c==':')}dir=path.Substring(0,i-1);filename=}}class{staticvoid {yzera=newyzer(); stringpath=Console.ReadLine();stringdir,a.SplitPath(path,outdir,outfile); ：{0}\n文件名：{1}",dir,file);}}usingSystem;classMaxer{publicintMax1(int[]numbers){intk=for(inti=0;i<numbers.Length;{}return}publicintMax2(paramsint[]numbers){intk=for(inti=0;i<numbers.Length;{}return}}class{staticvoid{Maxerm=newMaxer(); int[]anewint4,7,1,3,2,8,6,5intmax=m.Max1(a); 法得最大数为：{0}",max);max=m.Max2(4,7,1,3,2,8,6,5); Console.Wriine("使用第二种方法得最大数为：{0}",max);}}usingSystem;classMaxer{publicintMax(paramsint[]{intk=for(inti=0;i<datas.Length;{}return}publicdoubleMax(paramsdouble[]{intk=for(inti=0;i<datas.Length;{if(datas[k]<datas[i])k=i;}return}publicstringMax(paramsstring[]{intk=for(inti=0;i<datas.Length;{if(datas[k].Length<datas[i].Length)k=i;}return}}class{staticvoid{Maxerm=newintimax=m.Max(4,7,1,3,2,8,6,5);Console.Wriine("最大的整数为：{0}",imax);doublefmaxm.Max(4.5,7.8,1.32.9,8.4,5.5);Console.Wriine("最大的浮点数为：{0}",fmax);stringsmaxm.Max("Areyou","goingtoScarborough","Fair");Console.Wriine("最长的字符串为：{0}",smax);}}usingSystem;classPark{publicreadonlystringname;publicreadonlystringaddress;publicdecimalprice;publicPark(stringname,stringaddress,decimal{=name;this.address=address;this.price=price;}}class{staticvoid{}

Parkp=newPark("胜利公园","市蜀都大道100号",20);="新华公园"; p.price=Console.Wriine("{0}，地址：{1}，门票价格：{2}元。",,}3-10】usingSystem;classPark{publicreadonlystringname;publicreadonlystringaddress;publicdecimalprice; publicPark(stringname,stringaddress,decimal{=name;this.address=address;this.price=price;}//析构函{}}class{staticvoid{Parkp=newPark("胜利公园","市蜀都大道100号",20);Console.Wriine("该对象的数据有：{0}，{1}，{2}。",,p.address,p.price);}}using//表示的枚举型publicenumGenderpublicclass{privatestaticintmales;privatestaticintfemales;publicstringName;publicGenderSex;publicintAge;public(stringname,Gendersex,int{Name=Sex=Age=ifsexGender.男)ifsexGender.女}publicstaticint{return}//返回人publicstaticint{return}}class{staticvoid{[]ps=newps[0]=new("",Gender.男,ps[1]=new("",Gender.女,ps[2]=new("",Gender.女,ps[3]=new("",Gender.男,ps[4]=new("钱沿",Gender.男,Console.Wriine("人数：{0}",.NumberFemales());Console.Wriine("学生如下：");foreach(pin{Console.Write("{0}\t",}}}3-12】usingSystem;classTest{publicint //非静态字staticpublicint //静态字publicvoidSetValue(intx,int{this.x=Test.y= //不能使用this来静态字段}}class{staticvoid{Testt=newTest();t.SetValue(1,1);Console.Wri Console.Wriine("{0},{1}",t.x,Test.y);tnewConsole.Wriine("{0},{1}",t.x,}}3-13】usingSystem;classTest{publicintx;staticpublicinty;publicTest(intx){this.x=}staticTest(){y=}}class{staticvoid{Testt=newTest(1); Console.Wriine("{0},{1}",t.x,t=newTest(0); Console.Wriine("{0},{1}",t.x,Test.y);}}usingpublicclass//这是一个基{publicstringName; publicchar public(stringname,char{Name=Sex=}publicstring{returnstring.Format("：{0}，：{1}。",Name,}}publicclassStudent://这是一个派生{publicstringSchool; privateint publicStudent(stringname,charsex,stringschool,intscore):base(name,{School=Score=}publicfloat {return}}class{staticvoid{Students=newStudent("",'男',"电子学院",480); Console.Wriine("学校：{0}，考试成绩：{1}",s.School,s.Examine());}}usingpublicclass//这是一个基{publicstringName; publicchar public(stringname,char{Name=Sex=}//虚拟方法成publicvirtualstring{returnstring.Format("：{0}，：{1}。",Name,}}publicclassStudent://这是一个派生{publicstringSchool; publicintScore; publicStudent(stringname,charsex,stringschool,intscore):base(name,{School=Score=}publicoverridestring{returnstring.Format("：{0}，：{1}\n学校：{2}，成绩：{3}分。",Name,Sex,School,Score);}}publicclassWorker://这是一个派生{publicstringDepartment; publicfloat publicWorker(stringname,charsex,stringdepart,float:base(name,{Department=depart;Salary=salary;}publicoverridestring{returnstring.Format("：{0}，：{1}\n部门：{2}，薪水：{3}元。",Name,Sex,Department,Salary);}}class{staticvoid{Students=newStudent("",'男',"电子学院",480);Workerw=newWorker("",'男',"生产车间",1500);}}using class {privatestring publicShape(strings){Id=}publicstring {{}{}}

returnm_id=属性 double{}publicoverridestringToString(){returnIdstring.Format("{0:F2}",}}publicclassSquare {privateint publicSquare(intside,string:{m_side=}publicoverridedoubleArea{{}}}

returnm_side*class{staticvoid{SquaresnewSquare(5,方形");stringresult=s.ToString();}}usingSystem;interface //属性成stringStudentID{get;set;}stringName{get;set;}charSex{get;set;}//方法成newstring}interface //属性成stringSchoolName{get;set;}stringAddress{get;set;}//方法成string}publicclassStudent {privatestringstudentID;//学号privatestringname;privatecharsex; privatestringschoolName;//学校privatestringaddress;//校址#regionIStudent成员publicstringStudentID{{return}{studentID=}}publicstring{{returnname}{name=}}publicchar{{return}{sex=}}stringIStudent.Answer(){stringsStudentID;s+="："+Name;s+="："+Sex.ToString();returns;}#regionISchoolpublicstringSchoolName{{returnschoolName}{schoolName=}}publicstring{{return}{address=}}stringISchool.Answer(){stringsn学校SchoolName;s+="校址："+Address;return}publicStudent(stringid,stringname,char{StudentID=Name=Sex=SchoolName="";Address="";}publicStudent(stringid,stringname,charsex,stringschool,string{StudentID=Name=Sex=SchoolName=Address=}}class{staticvoid{Student[]s=news[0]=new ","",'男stringresult(IStudent)s[0]).Answer();//先强制类型转换，再调用方法s[1]newStudent("20008050301",女"电子学院","高新西区百叶路result((IStudent)s[1]).Answer();//强制类型转换，再调用方法resultISchool)s[1]).Answer();//强制类型转换，再调用方法Console.Wriine("学生乙：\n{0}",result);}}using //.NetFramework类namespace //自定义名空{publicclass {publicvoid{}}}using namespaceLfq. //自定义名空{publicclass {staticvoid Customercnew}}}usingpublicdelegateintCaculate(intx,inty);//委publicclass //{publicCaculatehandler;//这是一个委托型的字publicintProduct(intx,int{returnx*}publicintAverage(intx,int{return(x+y)/}}publicclass{staticvoid{inta=5,b=CaculateOfNumbercn=newCaculateOfNumber(); cn.handler=newCaculate(cn.Product); cn.handler=newCaculate(cn.Average);Console.Wriine("{0}与{1}的平均值为{2}",a,b,//使用方法来初始化委托型字cn.handlerdelegate(intx,inty)returnint)Math.Pow(x,yConsole.Wriine("{0}的{1}次方值为{2}",a,b,cn.handler(a,b));}}usingpublicdelegatePoint(inti);//委托，返回第i个人员publicdelegateintPosition(Students); publicclass //这是一个基类{publicstringname;publiccharsex;public(stringname,char{=name;this.sex=sex;}}publicclassStudent://这是一个派生{publicstringpublicStudent(stringname,charsex,string{this.school=}}publicclass {private[]p=newpublicthis[int //索引{{}}

if(i<0||i>=p.Length)p[0]=value;elsep[i]=value;publicget(int {if(i<0||i>=p.Length)returnp[0];elsereturnp[i];}publicintgetPos( {intk=-1; for(inti=0;i<p.Length;i++){if(==p[i].name&&per.sex=={k=i;}}return}}publicclass {privateStudent[]p=newpublicStudentthis[int //索引{{}}

if(i<0||i>=p.Length)p[0]=value;elsep[i]=value;publicStudentgetStudent(int {if(i<0||i>=p.Length)returnp[0];elsereturnp[i];}publicintgetPos(Student {intk=-1; for(inti=0;i<p.Length;i++){if(==p[i].name&&per.sex==p[i].sex&&per.school=={k=i;}}return}}publicclass{staticvoid{Studentss=newStudents();s[0]=newStudent("",'男',"电子学院s[1]=newStudent("",'男',"东软学院s[2]=newStudent("",'女',"电子学院s[3]=new ",'女',"电 学院s[4]=newStudent("梅岭",'男',"东软学院//创建返回值为型的委托对象并指定Students集合的getStudent方法Pointpoint=newPoint(s.getStudent);for(inti=0;i<5;{a=point(i); Console.Wriine("：{0}\t：{1}。",,a.sex);}sp=news();p[0]=new("",'女p[1]=new("",'女p[2]=new("",'男p[3]=new("",'男p[4]=new("",'男//创建参数为Student的委托对象，并指定Perons集合的getPosPositionpos=newPosition(p.getPos);intk=pos(newStudent("",'男',"电子学院"));//逆变委托方法调用Console.Wriine("该生是第{0}个学生。",k+1);}}usingpublicdelegatevoidCaculate(intx,inty);//委publicclass //{publicCaculatehandler;//这是一个委托型的字publicvoidProduct(intx,int{Console.Wriine("{0}与{1}的乘积为{2}",x,y,x*}publicvoidAverage(intx,int{Console.Wriine("{0}与{1}的平均值为{2}",x,y,(x+y)/}publicvoidPow(intx,int{Console.Wriine("{0}的{1}次方值为{2}",x,y,(int)Math.Pow(x,}}publicclass{staticvoid{inta=5,b=CaculateOfNumbercnnew cn.handler=newCaculate(cn.Product);cn.handlernewCaculate(cn.Average);cn.handler+=newCaculate(cn.Pow);//调用上面指定的方cn.handler(a,}}usingusingSystem.Collections;classStudent{publicstringName;publiccharSex;publicStudentstringname,char {Name=Sex=}publicstring{return"："+Name+"："+}}publicclass{staticvoid{Hashtableh=newHashtable(); Studentp=newStudent("",'男');h.Add("甲",p); p=newStudent("",'女');h.Addp=newStudent("",'男h.AddICollectionc=h.Values; IEnumeratorie=c.GetEnumerator(); while(ie.MoveNext()) {strings=((Student)ie.Current).Answer();}}}usingclass {privatelong[]arr=new //一个私有数组成publiclongthis[int //索引{{}{}}

if(index<0||index>=100)returnarr[0];returnif(index<0||index>=100)arr[0]=value;arr[index]=publiclongPow(intxint {return(long)Math.Pow(x,}}publicclass{staticvoid{Zz=new for(inti=0;i<100; 个数字的次{z[i]z.Pow(i+1, }for(inti=0;i<100;i++){Console.Write("{0}\tz[i]);引器逐个输出数组元素的}}}usingpublicinterface{stringthis[intindex]{get;set;}//索引string //方}publicclassAddress {privatestring[]addr=newpublicstringthis[int {{}{}}

if(index<0||index>=5)returnaddr[0];elsereturnaddr[index];if(index<0||index>=5)addr[0]=value;elseaddr[index]=value;;publicstring {stringsaddr[0省";s+=addr[1]+"市";saddr[2]街saddr[3]号saddr[4]单元";returns;}}publicclass{publicstringpublicAddressAddr=newpublicStudent(paramsstring[] //构造函{Name=for(inti=0;i<info.Length-1;i+{Addr[i]=}}publicstring {strings="："+Name+"\n";s+="地址："+Addr.getAddress();returns;}}publicclass{staticvoid{Studentstud=newStudent("余果","","","羊市","120","4-9-1");stud=newStudent("","山西","大同","大禹","210","1-2-8");}}usingpublicclass//这是一个基{publicstring publiccharSex; publicstring public(stringname,charsex,string{Name=Sex=Department=}}publicclassStudent://这是一个派生{publicStudent(stringname,charsex,string{}publicstring{stringresult="："+Name;result+="\t："+Sex;resulttDepartment;returnresult;}}publicclassTeacher://这是一个派生{publicTeacher(stringname,charsex,string{}}//一个泛型类，能容纳5个人的信publicclass whereT://T为类型参{private s=newpublicTthis[int{{}{}}

if(index<0||index>=5)return elsereturn if(index<0||index>=5) s[0]=value; s[index]=value;publicintCount{{int {if(this[i]==null)}return}}publicstringgetInfo(int{stringresult="："+this[index].Name;result+="\t："+this[index].Sex;resulttthis[index].Department;returnresult;}}publicclass{staticvoid{s<Student>s=news<Student>();s[0]=newStudent("",'男',"计08-04班s[1]=newStudent("",'男',"信08-01班s[2]=newStudent("",'女',"经08-02班");for(inti=0;i<s.Count;{stringresults[i].getInfo();//调用Student对象的成员方法}s<Teacher>t=news<Teacher>();t[0]=newTeacher("强",'男',"计算机网络教研室t[1]newTeacher(男',"数据库教研室");for(inti=0;i<t.Count;{stringresult=t.getInfo(i); }}}usingusingSystem.Collections;classStudent {publicstringname;publiccharsex;publicStudent(stringname,char{=name;this.sex=sex;}}//新生事件参数classStudentEventArgs:{privateStudentpublicStudentEventArgs(Student {someone=}publicStudent {get{returnsomeone;}}class {privateArrayListlist;//列表，用来保存本班已报到的学生信//新生报到的委托类publicdelegatevoidStudentHandler(ObjectsenderStudentEventArgse);publiceventStudentHandleronNewStudent;//新生事件publicGrades(){list=new}//新生s在班级上登记报publicvoidAdd(Student{}publicvoid{Studentfor(inti=0;i<list.Count;{s=StudentEventArgsenewStudentEventArgs(s);//创建事件参数if(onNewStudent!=null&&s!=null) }}}class {privateint privateArrayList //列表，保存已的学生信public {students=list=new}//索引publicStudentthis[int{{}}

if(index<0||index>=list.Count)return(Student)list[0];return//属性，返回全校学生人publicint{get{return}//事件函数，将学生s到学校花名册privatevoidAdd_NewStudent(Objectsender,StudentEventArgs{if(e.student!={ }}//一个订阅新生事件的方publicvoidAddStudents(Grades{g.onNewStudent+=new}}publicclass{staticvoid{Gradesg=newGrades(); SchoolschoolnewSchool();Students=newStudent("",'男');s=newStudent("",'男');snewStudentschool.AddStudents(g);//订阅事件 //以班级为单位进行学生，时发布事for(inti=0;i<school.Count;i++){Console.Wriine("：{0}\t：{1}",school[i].name,}}}privatevoidbtnYes_Click(objectsender,EventArgs{stringuserName=txtName.Text;stringpassword=txtPwd.Text;if(userName=="admin"&&password=={}{}}

MessageBox.Show(MessageBoxButtons.OK,MessageBox.Show("您输入的用户名或错误！","登录失败",MessageBoxButtons.OK,MessageBoxIcon.Exclamation);privatevoidbtnCancel_Click(objectsender,EventArgs{txtName.Text="";txtPwd.Text="";}privatevoidStudentMsgFrm_Load(objectsender,EventArgs{rdoMale.Checkedtrue;//默认学生姓别为cboDept.SelectedIndex0;//初始选择组合框中的第一项("计算机系}privatevoidcboDept_SelectedIndexChanged(objectsender,EventArgs{switch{case"计算系case"微电子技术系":case"电子信息工程系":case"经济与管理工程系":case"图形艺术系": }lstSpec.SelectedIndex=}privatevoidbtnYes_Click(objectsender,EventArgs{stringsex="";elsesex=rdoFemale.Text;stringdept=cboDept.SelectedItem.ToString();stringspec=lstSpec.SelectedItem.ToString();stringhobby="";if(checkBox1.Checked)hobby+=if(checkBox2.Checked)hobby+="、"+checkBox2.Text;ifcheckBox3.Checkedhobby、checkBox3.Text;ifcheckBox4.Checkedhobby、checkBox4.Text;ifcheckBox5.Checkedhobby、checkBox5.Text;if(checkBox6.Checked)hobby、stringstudentMessage="您的是:"+txtName.Text+"\n为:"++"\n您是"+dept+"系"+spec+"专业的学生\n您的是:"+hobby;MessageBox.Show(studentMessage,MessageBoxButtons.OK,}privatevoidbtnClose_Click(objectsender,EventArgs{}publicpartialclassCourseMsgFrm:{stringcourseName;stringcourseClass;stringrequired;intintprelectionCredit;intExperimentCredit;public{}}privatevoidbtnNext_Click(objectsender,EventArgs{if(txtName.Text==""||cboClass.SelectedIndex<||(rdoRequired.Checked==false&&rdoElective.Checked=={}{

MessageBox.Show("输入信息不完整！","信息不完整",MessageBoxButtons.OKMessageBoxIcon.Exclamation);tabControl1.SelectedTabtabPage2;//显示“确认信息”选项}}privatevoidtabControl1_SelectedIndexChanged(objectsender,EventArgs{if(tabControl1.SelectedIndex=={if(txtName.Text==""||cboClass.SelectedIndex<||(rdoRequired.Checked==false&&rdoElective.Checked=={MessageBox.Show("输入信息不完整！","信息不完整",MessageBoxButtons.OKMessageBoxIcon.Exclamation);tabControl1.SelectedTab=}{courseName=courseClass=cboClass.SelectedItem.ToString();requiredrdoRequired.Checked必修credit=(int)nudCredit.Value;prelectionCredit=(int)nudPrelection.Value;ExperimentCredit=(int)nudExp.Value;stringmessageString.Format("课程名:{0}\n课程类别:{1}\n课程性质:{2}\n学分:{3}\n理论学时:{4}\n实验学时:{5}",courseName,courseClass,required,credit,prelectionCredit,ExperimentCredit);richTextBox1.Text=}}}privatevoidbtnYes_Click(objectsender,EventArgs{}publicpartialclassForm2:{publicstringmessage;publicForm2(){}privatevoidForm2_Load(objectsender,EventArgs{label1.Text=}privatevoidbutton1_Click(objectsender,EventArgs{}}privatevoidbutton1_Click(objectsender,EventArgs{Form2frmnewForm2();//新建一个窗体对象frm.message="这是一个模态框！";}privatevoidbutton2_Click(objectsender,EventArgs{Form2frm=newForm2();//新建一个窗体对象frm.message="这是一个非模态框！";frm.Show();//Show方法用于打开一个非模态框}privatevoid字体FToolStripItem_Click(objectsender,EventArgs{fontDialog1.Font=if(fontDialog1.ShowDialog()=={richTextBox1.Font=}}privatevoid颜色CToolStripItem_Click(objectsender,EventArgs{colorDialog1.Color=if(colorDialog1.ShowDialog()=={richTextBox1.ForeColor=}}privatevoidtsmNewStudent_Click(objectsender,EventArgs{StudentMsgFrmstudentMsgFrmnewStudentMsgFrmstudentMsgFrm.MdiParent=this;//指定当前窗体为MDI父窗体tssMsg.TextstudentMsgFrm.Text}privatevoidtsmNewCourse_Click(objectsender,EventArgs{CourseMsgFrmcourseMsgFrmnewCourseMsgFrmcourseMsgFrm.MdiParent=this;//指定当前窗体为MDI父窗体tssMsg.TextcourseMsgFrm.Text;//状态栏中显示操作内}privatevoidtsmAbout_Click(objectsender,EventArgs{AboutFormaboutForm=newAboutForm();//创建窗体对象tssMsg.Text=aboutForm.Text;//状态栏中显示操作内容}privatevoidbtnAdd_Click(objectsender,EventArgs{StreamWriterswnewStreamWriter(@"d:\C#程序设计\abc.txt",true);}privatevoidbtnShow_Click(objectsender,EventArgs{StreamReadersrnewStreamReader(@"d:\C#程序设计\abc.txt");txtResult.Text=sr.ReadToEnd();;}privatevoidbtnAdd_Click(objectsender,EventArgs{FileStreamfsnewFileStream(@"d:\C#程序设计FileMode.Append,FileAccess.Write);BinaryWriterbw=newBinaryWriter(fs);}privatevoidbtnShow_Click(objectsender,EventArgs{FileStreamfsnewFileStream(@"d:\C#程序设计FileMode.Open,FileAccess.Read);BinaryReaderbr=newBinaryReader(fs);fs.Position=while(fs.Position!={strings_no=br.ReadString();stringname=br.ReadString();stringdepart=br.ReadString();stringresult=String.Format("{0}\t{1}\t{2}",s_no,name,depart);}}usingclass {publicstringstudent_no;publicstringname;publicstringdepartment;publicstudent(strings_no,stringname,stringdepart)函{this.student_no=s_no;=name;this.department=depart;}}publicclass {privateStudent[]list=newpublicStudentthis[int //索引{{if(index0||index 围{return}{return}}{if(!(index<0||index>={}}using

list[index]=}usingSystem.Runtime.Serialization.Formatters.Binary;publicpartialclassfrmDemo:Form{privateStudentListlist=newStudentList(); privateinti=0; privatevoidbtnAdd_Click(objectsender,EventArgse){StudentstudentnewStudent(txtNo.Text,txtName.Text,txtDepart.Text);list[i]=student;//把学生添加到列表中}privatevoidbtnSave_Click(objectsender,EventArgs{stringfile@"d:\C#程序设计BinaryFormatterbf=newBinaryFormatter(); bf.Serialize(stream,list); }privatevoidbtnShow_Click(objectsender,EventArgs{stringfile@"d:\C#程序设计Streamstream=newFileStream(file,FileMode.Open,FileAccess.Read);BinaryFormatterbf=newBinaryFormatter(); StudentListstudentsStudentList)bf.Deserialize(stream);intk=while(students[k] {strings_no=students[k].student_no;stringname=students[k].name;stringdepart=stringresult=String.Format("{0}\t{1}\t{2}",s_no,name,depart);}}}using usingSystem.Drawing;usingusingSystem.Windows.Forms;usingSystem.IO;usingnamespace{publicpartialclassfrmDemo:{public{}

privatevoidbtnOpen_Click(objectsender,EventArgs{ }privatevoidopenFileDialog1_FileOk(objectsender,CancelEventArgs{txtFile.Text=openFileDialog1.FileName; Streamstream=openFileDialog1.OpenFile(); BinaryFormatterbf=newBinaryFormatter(); StudentListstudentsStudentList)bf.Deserialize(stream);//把流反序列化intk=0;while(students[k] {strings_no=students[k].student_no;stringname=students[k].name;stringdepart=stringresult=String.Format("{0}\t{1}\t{2}",s_no,name,depart);}}}}publicpartialclassfrmDemo:{privateStudentListlist=new //一个学生列privateinti privatevoidbtnAdd_Click(objectsender,EventArgs{StudentstudentnewStudent(txtNo.Text,txtName.Text,txtDepart.Text);list[i]=student;//把学生添加到列表中}privatevoidbtnSave_Click(objectsender,EventArgs{}privatevoidsaveFileDialog1_FileOk(objectsender,CancelEventArgs{Streamstream=BinaryFormatterbfnewBinaryFormatter();//创建序列化对象bf.Serialize(stream,list);//把学生列表序列化并写入流lblShow.TextlblShow.Text}}privatevoidbtnBrowse_Click(objectsender,EventArgs{DialogResultresult=if(result==DialogResult.OK)txtPostion.Text=folder.SelectedPath;}privatevoidbtnOk_Click(objectsender,EventArgs{stringpath=string.Format(@"{0}\{1}.txt",txtPostion.Text,txtName.Text);Streamstream=newFileStream(path,FileMode.OpenOrCreate,FileAccess.Write);StreamWritersw=newStreamWriter(stream);}privatevoidbtnCancel_Click(objectsender,EventArgs{}usingusingSystem.Collections.Generic;usingSystem.Text;namespace{publicclassMyException:{publicMyException(){publicMyException(stringstr1):base(str1){publicMyException(stringstr1,Exceptione):base(str1,e){}class{staticvoidMain(string[]{ thrownewMyException("这是一个自定义的异常}}usingusingSystem.Collections.Generic;usingSystem.Text;usingnamespace{class{staticvoidMain(string[]{StreamWriterstr=null;{str=newStreamWriter(newFileStream("D:\dou.txt",}catch(FileNotFoundException{Console.Wriine("filenot}catch(Exception{Console.Wri} {Console.Wriine("excutefinally");}}}}usingSystem.Threading;namespaceConsoleApplication1{class{publicvoidTask()//定义了一个简单任{Console.Wriine("Thisisa}staticvoidMain(string[]{FirstThreadft=newThreadt1newThread(newThreadStart(ft.Taskt1.Start();//启动线程}}}usingusingSystem.Collections.Generic;usingSystem.Text;usingSystem.Threading;namespaceConsoleApplication1{class{publicstaticThreadsleeper;public