独特风格的计算机二级VB试题与答案

独特风格的计算机二级VB试题与答案姓名：____________________

一、单项选择题（每题2分，共10题）

1.在VisualBasic中，以下哪个函数可以用来获取当前日期？

A.Now()

B.Today()

C.Date()

D.Time()

2.以下哪个属性可以用来设置窗体的标题栏文本？

A.Caption

B.Title

C.Name

D.Text

3.在VB中，以下哪个控件可以用来显示文本信息？

A.TextBox

B.Label

C.Button

D.ListBox

4.以下哪个事件会在用户点击按钮时触发？

A.Load

B.Click

C.DoubleClick

D.KeyPress

5.在VB中，以下哪个语句可以用来清除一个数组中的所有元素？

A.Clear

B.Erase

C.Dim

D.ReDim

6.以下哪个关键字可以用来定义一个常量？

A.Const

B.Dim

C.Static

D.Private

7.在VB中，以下哪个方法可以用来读取文件内容？

A.Read

B.Write

C.Open

D.Close

8.以下哪个属性可以用来设置文本框中的文本内容？

A.Text

B.Value

C.Caption

D.Name

9.在VB中，以下哪个关键字可以用来定义一个过程？

A.Function

B.Sub

C.Get

D.Set

10.以下哪个函数可以用来获取当前时间？

A.Now()

B.Today()

C.Time()

D.Date()

二、填空题（每题2分，共5题）

1.在VB中，声明一个整型变量的语法是：____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________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二、多项选择题（每题3分，共10题）

1.在VB中，以下哪些属性可以用来控制文本框的显示方式？

A.Visible

B.Enabled

C.Locked

D.BackColor

2.以下哪些事件会在窗体加载时触发？

A.Load

B.Unload

C.Initialize

D.Activate

3.在VB中，以下哪些控件可以用来显示图形？

A.PictureBox

B.ImageList

C.Listbox

D.Label

4.以下哪些关键字可以用来定义一个数组？

A.Dim

B.Static

C.Redim

D.Private

5.在VB中，以下哪些函数可以用来进行数学运算？

A.Abs

B.Sqr

C.Log

D.Exp

6.以下哪些方法可以用来在窗体上绘制图形？

A.Circle

B.Line

C.Rectangle

D.PSet

7.在VB中，以下哪些关键字可以用来定义一个过程？

A.Function

B.Sub

C.Get

D.Set

8.以下哪些属性可以用来设置控件的字体？

A.Font

B.FontName

C.FontSize

D.FontWeight

9.在VB中，以下哪些函数可以用来处理字符串？

A.Len

B.Left

C.Right

D.Mid

10.以下哪些关键字可以用来定义一个模块？

A.Module

B.Class

C.Interface

D.Structure

三、判断题（每题2分，共10题）

1.在VB中，变量的作用域只限于声明它的模块内部。（）

2.在VB中，所有的数组都必须在使用之前进行初始化。（）

3.在VB中，可以使用Dim语句定义一个静态数组。（）

4.在VB中，事件过程可以没有返回值。（）

5.在VB中，所有的窗体都继承自Form类。（）

6.在VB中，可以通过设置控件的Visible属性为False来隐藏控件。（）

7.在VB中，可以使用PSet方法在PictureBox控件中绘制点。（）

8.在VB中，可以使用Label控件来显示图形。（）

9.在VB中，所有的字符串函数都是不区分大小写的。（）

10.在VB中，可以通过设置控件的Enable属性为False来禁用控件。（）

四、简答题（每题5分，共6题）

1.简述在VB中如何声明一个一维数组，并说明如何使用数组的下标访问数组元素。

2.解释在VB中什么是事件驱动编程，并举例说明事件驱动的程序流程。

3.描述在VB中如何创建一个子程序（Sub），并说明子程序与函数（Function）的主要区别。

4.解释在VB中如何使用循环结构进行重复操作，并举例说明For循环和Do循环的用法。

5.简述在VB中如何使用文件操作函数进行文件读写操作，包括打开文件、读取文件内容、写入文件内容和关闭文件的基本步骤。

6.描述在VB中如何使用数据库控件（如ADO控件）连接到数据库，并执行基本的查询和更新操作。

试卷答案如下

一、单项选择题

1.A

解析思路：Now()函数返回当前日期和时间，Today()返回当前日期，Date()返回系统日期，Time()返回系统时间。

2.A

解析思路：Caption属性设置窗体的标题栏文本，Title属性不适用于窗体，Name属性设置控件的名称，Text属性设置文本框的内容。

3.B

解析思路：TextBox控件用于输入和显示文本，Label控件用于显示文本信息，Button控件用于响应用户点击，ListBox控件用于显示列表。

4.B

解析思路：Click事件在用户点击按钮时触发，Load事件在窗体加载时触发，DoubleClick事件在用户双击控件时触发，KeyPress事件在用户按下键盘按键时触发。

5.B

解析思路：Erase语句清除数组中的所有元素，Clear方法用于清除对象的内容，Dim语句用于声明变量，ReDim语句用于重新定义数组的大小。

6.A

解析思路：Const关键字用于定义常量，Dim关键字用