大学C#-试题-答案题库-程序设计-.NET-Framework-visual

大学C#_试题_答案题库_程序设计_.NET_Framework_visualD、LoadC、IntervalB、TabIndexD、IsMdiContainer（checked）IsSelected。Override。a)publicenumvar1{Mike=100,Nike=102,Jike}b)publicenumvar1{Mike=100,Nike,Jike}c)publicenumvar1{Mike=-1,Nike,Jike}d)publicenumvar1{Mike,Nike,Jike}10.int[][]myArray3=newint[3][]{newint[3]{5,6,2},newint[5]{6,9,7,8,3},newint[2]{3,2}};myArray3[2][2]的值是（d）。/doc/5d12532298.html,框架中，服务器/doc/5d12532298.html,中，在Web窗b)<%@RegisterTagPrefix="Space2"TagName="Mike"Src="myX.ascx"%>14.在/doc/5d12532298.html,中，对于Command对象的ExecuteNonQuery()方法和ExecuteReader()方法，a)insert、update、delete等操作的Sql语句主要用ExecuteNonQuery()方法来执行；b)ExecuteNonQuery()方法返回执行Sql语句所影响的行数。c)Select操作的Sql语句只能由ExecuteReader()方法来执行；d)ExecuteReader()方法返回一个DataReder对象；15.下列/doc/5d12532298.html,语句b)SqlConnectioncon1=newSqlConnection("DataSource=localhost;IntegratedSecurity=SSPI;InitialCatalog=myDB");17.在/doc/5d12532298.html,中执行一d)IsMdiContainer；treeView1=newtreeView1.Nodes.Add("根节点")返回的是一个a)TreeNode；publicinterfaceIFileintdelFile()d)代码voiddisFile();应该编写为voiddisFile(){}；/doc/5d12532298.html,中有/doc/5d12532298.html,,正确的代码为e){Reponse.Redirect("/doc/5d12532298.html,");}myButton_Click(object30.声明一个委托publicdelegateintmyCallBack(intx);则用该b)intreceive(intnum)；8.(入值在0和1000之间，则适用RequiredFieldValidator和/doc/5d12532298.html,中常用的对象有6/doc/5d12532298.html,我直接用sqlhelper了有connectioncommand还有参数/doc/5d12532298.html,的身份验证方式11/doc/5d12532298.html,身份验证最12进程简单理解为单个程序吧(按ctrl+alt+del)可以看到的.它至/doc/5d12532298.html,中读写XML的/doc/5d12532298.html,页面。了.当然要/doc/5d12532298.html,支持20直接在/doc/5d12532298.html,里面(3)列举/doc/5d12532298.html,中的五3.简述private、protected、public、internal修饰符的访问权Command、Connection、DataSet、DataSetCommand、DataReader。4.解1:selecttop10*fromAwhereidnotin(selecttop30idfromA)解2:selecttop10*fromAwhereid>(selectmax(id)from(selecttop30idfromA)asA)5.列举/doc/5d12532298.html,页面之5.1.使用QueryString,如....?id=1;response.Redirect()....stringbeingconverted.privatestringstr="Class1.str";privateinti=0;staticvoidStringConvert(stringstr){str="stringbeingconverted.";staticvoidStringConvert(Class1c){c.str="stringbeingconvertestaticvoidAdd(inti){i++;staticvoidAddWithRef(refinti){i++;staticvoidMain(){inti1=10;inti2=20;stringstr="str";AddWithRef(refi2);StringConvert(str);StringConvert(c);Console.WriteLine(i1);Console.WriteLine(i2);Console.WriteLine(c.i);Console.WriteLine(str);Console.WriteLine(c.str);publicabstractclassApublicA()Console.WriteLine('A');publicvirtualvoidFun()Console.WriteLine("A.Fun()");}Console.WriteLine('B');publicnewvoidFun()Console.WriteLine("B.Fun()");}publicstaticvoidMain()516publicvirtualvoidFun1(inti){Console.WriteLine(i);publicvoidFun2(Aa)publicoverridevoidFun1(inti)publicstaticvoidMain()Aa=newA();publicclassMainClasspublicstaticvoidMain()Console.WriteLine(Foo(30));publicstaticintFoo(inti)if(i<=0)return0;elseif(i>0&&i<=2)return1;elsereturnFoo(i-1)+Foo(i-2);写出if(i>0&&i<=2)return1;得5分。(C#语言)<2>从Mouse和Master中提取抽象（5分）publicinterfaceObserverpublicinterfaceSubjectpublicclassMouse:Observerprivatestringname;publicMouse(stringname,Subjectsubj)/doc/5d12532298.html,=name;subj.AimAt(this);publicvoidResponse()Console.WriteLine(name+"attempttoescape!");}publicclassMaster:ObserverpublicMaster(Subjectsubj)subj.AimAt(this);publicvoidResponse()Console.WriteLine("Hostwaken!");publicclassCat:SubjectprivateArrayListobservers;publicCat()this.observers=newArrayList();publicvoidAimAt(Observerobs)this.observers.Add(obs);publicvoidCry()Console.WriteLine("Catcryed!");foreach(Observerobsinthis.observers)staticvoidMain(string[]args)Catcat=newCat();Mousemouse1=newMouse("mouse1",cat);Mousemouse2=newMouse("mouse2",cat);Mastermaster=newMaster(cat);//---------------------------------------------------------------------------------------------publicdelegatevoidSubEventHandler();publicabstractclassSubjectpubliceventSubEventHandlerSubEvent;protectedvoidFireAway()if(this.SubEvent!=null)publicclassCat:SubjectpublicvoidCry()Console.WriteLine("catcryed.");publicabstractclassObserverpublicObserver(Subjectsub)sub.SubEvent+=newSubEventHandler(Response);publicabstractvoidResponse();publicclassMouse:Observerprivatestringname;publicMouse(stringname,Subjectsub):base(sub)/doc/5d12532298.html,=name;publicoverridevoidResponse()Console.WriteLine(name+"attempttoescape!");publicclassMaster:ObserverpublicMaster(Subjectsub):base(sub){}publicoverridevoidResponse()Console.WriteLine("hostwaken");staticvoidMain(string[]args)Catcat=newCat();Mousemouse1=newMouse("mouse1",cat);Mousemouse2=newMouse("mouse2",cat);Mastermaster=newMaster(cat);３、malloc和new的区别装)___?4.publicstaticconstintA=1;这段代码有错误么？是什么？5.floatf=-123.567F;inti=(int)f;9.在/doc/5d12532298.html,中所有的自publicvirtualvoidF(){Console.WriteLine("A.F");publicabstractoverridevoidF();//newpublicabstractvoiddufault;//wrongenumColor:byte{string[]ss=Enum.GetNames(typeof(Color));byte[]bb=Enum.GetValues(typeof(Color));inti=5;intj=5;if(Object.ReferenceEquals(i,j))Console.Write