设在窗体上有个文本框,然后编写如下的事件过程。 Private Sub Text1_KeyDown(KeyCode As Integef,Shift As Integer) Const Alt=4 ConstKey_F2=H71 altdown%=(Shift And Alt)>0 f2down%=(KeyCode=Key_F2) If altdown% And f2down% Then Text1.Text= "BBBBB" End If End Sub 上述程序运行后,如果按[Shift+F12],则在文本框中显示得是A.Alt+nB.BBBBBC.随机出几个数D.文本框平均内容无变化

设在窗体上有个文本框,然后编写如下的事件过程。 Private Sub Text1_KeyDown(KeyCode As Integef,Shift As Integer) Const Alt=4 ConstKey_F2=&H71 altdown%=(Shift And Alt)>0 f2down%=(KeyCode=Key_F2) If altdown% And f2down% Then Text1.Text= "BBBBB" End If End Sub 上述程序运行后,如果按[Shift+F12],则在文本框中显示得是

A.Alt+n

B.BBBBB

C.随机出几个数

D.文本框平均内容无变化


相关考题:

在窗体上画1个文本框,其名称为Text1,然后编写如下过程:Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer)Print Chr(KeyCode)End SubPrivate Sub Text1_KeyUp(KeyCode As Integer,Shift As Integer)Print Chr(KeyCode+2)End Sub程序运行后,把焦点移到文本框中,此时如果敲击“A”键,则输出结果为。A.AAB.ABC.ACD.AD

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设窗体上有一个名为Text1的文本框,并编写如下程序: Private Sub Form_Load() Show Text1.Text=" " Text1.SetFocus End Sub Private Sub Form_MouseUp(Button As Integer, Shift As Integer,X As Single,Y As Single) Print“程序设计” End Sub Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer) Print "Visual Basic"; End Sub 程序运行后,如果在文本框中输入字母“a”,然后单击窗体,则在窗本上显示的内容是A.Visual BasicB.程序设计C.Visual Basic程序设计D.a程序设计

设在窗体上有个文本框,然后编写如下的事件过程:Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer)Const Alt=4Const Key_F2=H71altdown%=(Shift And Alt)>0f2down%=(KeyCode=Key_F2)If altdown% And f2down% ThenText1.Text="BBBBB"End IfEnd Sub上述程序运行后,如果按“Shift+F2”组合键,则在文本框中显示的是A.Alt+F2B.BBBBBC.随机出几个数D.文本框内容无变化

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设窗体上有一个名为Text1的文本框,并编写如下程序: Private Sub Form_Load() Show Text1.Text="" Text1.SetFocus End Sub Private Sub Form_MouseUp(Button As Integer,Shift As Integer,X As Single,Y As Single) Print"程序设计" End Sub Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer) Print"Visual Basic"; End Sub 程序运行后,如果在文本框中输入字母“a”,然后单击窗体,则在窗体上显示的内容是______。A. Visual BasicB.程序设计C.Visual Basic程序设计D.a程序设计

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把窗体的KeyPreview属性设置为True,然后编写如下过程: Private Sub Form_KeyDown(KeyCode As Integer,Shift As Integer) Print Chr(KeyCode) End Sub Private Sub Form_KeyUp(KeyCode As Integer,Shift As Integer) Print Chr(KeyCode+2) End Sub 程序运行后,如果按“A”键,则输出结果为 ______。A.A AB.A BC.A CD.A D

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把窗体的Key Preview属性设置为True,然后编写如下过程: Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer) Print Chr(KeyCode) End Sub Private Sub Form_KeyUp(KeyVode As Integer, ShiftAs Integer) Print Chr(KeyCode+2) End Sub 程序运行后,如果按“A”键,则输出结果______。A.AB.AC.AD.A A B C D

设在窗体上有一个文本框,然后编写如下的事件过程: Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Intcger) Const Alt=4 Const Key_f2=H71 altdown%=(Shift And Alt) > 0 f2down% And f2down% Then If altdown% And f2down% Then Text ="abl" End If Ead Sub 程序运行后,清除文本框中原有内容,如果按Shift+F2键,则在文本框中显示的是A.Alt+F2B.ablC.随机出儿个数D.不发生变化

在窗体上画一个名称为Text1的文本框,并编写如下程序: Private Sub Form Load( ) Show Text1.Text="" Text1.SetFocus End Sub Pfivate Sub Form_MouseUp(BuHon As Integer,Shift As Integer,X As Single,Y As Single) Print“程序设计” End Sub Private Sub Text1_KeyDown(KeyCode As Integer,shift As Integer) Print"Visua1 Basic"; End Sub 程序运行后,如果按“A”键,然后单击窗体,则在窗体上显示的内容是A.VisualBasicB.程序设计C.A程序设计D.Visual Basic程序设计

设在窗体上有个文本框,然后编写如下的事件过程Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)Const Alt=4Const Key_F2=H71altdown%=(Shift And Alt) 0f2down%=(KeyCode=Key_F2)If altdown% And f2down% ThenText1.Text="BBBBB"End IfEnd Sub上述程序运行后,如果按【Shift+F2】,则在文本框中显示得是A.Alt+F2B.BBBBBC.随机出几个数D.文本框平均内容无变化

把窗体的KeyPreview属性设置为True,然后编写如下过程: Private SubForm_KeyDown(KeyCode As Integer,Shift As Integer) PrintChr (KeyCode) End Sub Private Sub Form_KeyUp(KeyCode As Integer, Shift As Integer) PrintChr(KeyCode+2) End Sub 程序运行后,如果按“A”键,则输出结果为 ______。A.A AB.A BC.A CD.A D

在窗体中添加两个文本框,其名称分别为Text1和Text2;两个标签,其名称分别为Label1和Label2。编写程序,使得程序运行后,在文本框Text2中输入小写字母,能转换为比此字母的ASCII码小4的大写字母,结果显示在文本框Text1中。如输入“efg”,则输出的结果为“ABC”,能够实现上述功能的程序是A.Private Sub Form. Load() Show Text1.Text=" " Text2.Text=" " Text2.SetFocus End Sub Private Sub Text2_KeyDown(KeyCode As Integer,Shift As Integer) Text1.Text=Chr(KeyCode-4) End SubB.Private Sub Form_Load() Show Text1.Text=" " Text2.Text=" " Text2.SetFocus End Sub Private Sub Text2_KeyDown(KeyCode As Integer,Shift As Integer) Text1.Text=Text1.Text+Chr(KeyCode-4) End SubC.Private Sub Form_Load() Show Text1.Text=" " Text2.Text=" " Text2.SetFocus End Sub Private Sub Text2_Click(KeyCode As Integer,Shift As Integer) Text1.Text=Text1.Text+Chr(KeyCOde-4) End SubD.Private Sub Form_Load() Show Text1.Text=" " Text2.Text=" " Text2.SetFocus End Sub Private Sub Text2_Click(KeyCode As Integer,Shift As Integer) Text1.Text=Chr(KeyCode-4) End Sub

下列程序执行后,在Ctrl和Alt这两个键都被按下的同时,再在文本框中输入“a”,输出结果为 Prirate Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer) If Shift > 0 And KeyCode >= Asc("A")Then Print KeyCode + Shift End If End SubA.65B.71C.0D.出错

将窗体的KeyPreview属性设置为True,然后编写如下过程: Private Sub Form. KeyDown(KeyCode As Integer,Shift As Integer) Print Chr(KeyCode) End Sub Private Sub Form_KeyUp(KeyCode As Integer,Shift As Integer) Print Chr(KeyCode+2) End Sub 程序运行后,如果按“A”键,则输出的结果为A.A AB.A BC.A CD.A D

在窗体上画一个名称为Text1的文本框,要求文本框只能接收大写字母的输入。以下能实现该操作的事件过程是( )。A.Private Sub Text1_KeyPress(KeyAscii As Integer) If KeyAscii 65 Or KeyAscii 90 Then MsgBox "请输入大写字母" KeyAscii = 0 End If End SubB.Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer) If KeyCode 65 Or KeyCode 90 Then MsgBox "请输入大写字母" KeyCode = 0 End If End SubC.Private Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) If Asc(Text1.Text) 65 Or Asc(Text1.Text) 90 Then MsgBox "请输入大写字母" End If End SubD.Private Sub Text1_Change() If Asc(Text1.Text) 64 And Asc(Text1.Text) 91 Then MsgBox "请输入大写字母" End If End Sub