1:在软件生命周期中,下列哪个说法是不准确的?
A.软件生命周期分为计划、开发和运行三个阶段
B.在计划阶段要进行问题焉醛和需求分析
C.在开发后期要进行编写代码和软件测试
D.在运行阶段主要是进行软件维护
2:public static void Main(string[] args){int i = 2000;object o = i;i = 2001;int j =(int) o;Console.WriteLine("i={0},o={1}, j={2}",i,o,j);}
A.i=2001,o=2000,j=2000
B.i=2001,o=2001,,j=2001
C.i=2000,o=2001,,j=2000
D.i=2001,o=2000,j=2001
3:在C#中利用Socket进行网络通信编程的一般步骤是:建立Socket侦听、( )、利用Socket接收和发送数据。
A.建立Socket连接
B.获得端口号
C.获得IP地址
D.获得主机名
4:设有变量说明语句int a=1,b=0;则执行以下程序段的输出结果为( )。
switch (a){case 1:switch (b){case 0:printf("0");break;case 1:printf("1");break;}case 2:printf("2");break;}printf(" ");
A.0
B.02
C.012
D.有语法错误
5:声明一个委托public delegate int myCallBack(int x); 则用该委托产生的回调方法的原型应该是
A.void myCallBack(int x)
B.int receive(int num)
C.string receive(int x)
D.不确定的
6:关于ASP.NET中的代码隐藏文件的描述正确的是:
A.Web窗体页的程序的逻辑由代码组成,这些代码的创建用于与窗体交互。编程逻辑唯一与用户界面不同的文件中。该文件称作为“代码隐藏”文件,如果用C#创建,该文件
B.项目中所有Web窗体页的代码隐藏文件都被编译成.EXE文件
C.项目中所有的Web窗体页的代码隐藏文件都被编译成项目动态链接库(.dll)文件
D.以上都不正确
7:如果设treeView1=new TreeView(),TreeNode node=new TreeNode("根结点" ),则treeView1.Nodes.Add(node)返回的是一个( )类型的值。
A.TreeNode
B.int
C.string
D.TreeView
8:以下的C程序代码片段运行后C和d的值分别是多少
Int a =1,b =2;Int c,d;c =(a&b)&&a;d =(a&&b)&a;
A.0,0
B.0,1
C.1,0
D.1,1
9:What compiler switch creates an xml file from the xml comments in the files in an assembly?
A./text
B./doc
C./xml
D./help
10:Which of the following operations can you NOT perform on an ADO.NET DataSet?
A.A DataSet can be synchronised with a RecordSet.
B.A DataSet can be synchronised with the database.
C.A DataSet can be converted to XML.
D.You can infer the schema from a DataSet
11:In Object Oriented Programming, how would you describe encapsulation?
A.The conversion of one type of object to another.
B.The runtime resolution of method calls.
C.The exposition of data.
D.The separation of interface and implementation.
12:如下程序的运行结果是:public abstract class A{public A(){Console.WriteLine(''A'');}public virtual void Fun(){Console.WriteLine("A.Fun()");}}public class B: A{public B(){Console.WriteLine(''B'');}public new void Fun(){Console.WriteLine("B.Fun()");}public static void Main(){A a = new B();a.Fun();}}
A.A B A.Fun()
B.A B B.Fun()
C.B A A.Fun()
D.B A B.Fun()
13:Which of these string definitions will Pvent escaping on backslashes in C#?
A.string s = #”n Test string”;
B.string s = “’n Test string”;
C.string s = @”n Test string”;
D.string s = “n Test string”;
14:假定a和b为int型变量,则执行下述语句组后,b的值为a=1;b=10;do{b-=a;a++;} while (b--<0);
A.9
B.-2
C.-1
D.8
15:abstract class BaseClass{public virtual void MethodA(){Console.WriteLine("BaseClass");}public virtual void MethodB(){}}class Class1: BaseClass{public void MethodA(){Console.WriteLine("Class1");}public override void MethodB(){}}class Class2: Class1{new public void MethodB(){}}class MainClass{public static void Main(string[] args){Class2 o = new Class2();o.MethodA();}}请问,此程序输出结果是:
A.BaseClass
B.BassClass Class1
C.Class1
D.Class1 BassClass
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