窗体上有三个文本框Text1、Text2和Text3以及一个命令按钮Command1，设文本框Text1中内容为 12，文本框Text2中内容为34。下面程序的执行结果为______。Private Sub Command1_ Cilick() Text3.Text = Str＄(Val(Text1.Text)) + Val(Text2.Text) Print val(Text3,Text)End Sub

A．12

B．34

C．46

D．1234

[单选题]（27）窗体上有两个文本框Text1、Text2以及一个命令按钮Commandl,编写下列程序： Dim y As Integer Private Sub Command1_Click() Dim x As Integer x=2 Text1Text=p2(p1(x),y) Text2Text=p1(x) End Sub Private Function pl(x As Integer) As Integer x=x+y:y=x+y pl=x+y End Function Private Fun

[单选题]（30）窗体上有两个文本框Text1、Text2以及一个命令按钮Commandl,编写下列程序： Dim y As Integer Private Sub Commandl_Click() Dim x As Integerx=2 Text1.Text=p2(pl(x),y) Text2.Text=p2(x) End Sub Private Function p2(x As Integer,y As Integer) x=x+y：y=x+y pl=x+y End Function Private

[单选题]窗体上有两个文本框Text1、Text2以及一个命令按钮Command1，编写下列程序：D．im y As IntegerPrivate Sub Command1_Click()D．im x As Integerx=2Text1.Text=p2(p1(x),y)Text2.Text=p1(x)E．nd SubPrivate Function p1(x As Integer)As Integerx=x+y:y=x+yp1=x+yE．nd FunctionPrivate Function p2(x

[单选题]窗体上有两个文本框Text1、Text2以及一个命令按钮Command1，编写下列程序： Dim y As IntegerPrivate Sub Command1_Click()Dim x As Integer x=2 Text1.Text=p2(p1(x), y) Text2.Text=pi(x)End SubPrivate Function p1(x As Integer) As Integer x=x+y:y=x+y p1=x+yEnd FunctionPrivate Function p

[单选题]在窗体中建立三个文本框，名称分别为text1、text2和text3，还有一个名称为label1的标签，一个名称为command1的命令按钮，编写如下代码：Private Sub Command1_Click( )D．im x!, y!, z!, t!x = Text1y = Text2z = Text3If x< y Thent = xx = yy = tE．nd IfIf y< z Thent = yy = zz = tIf x< y Thent = xx = yy = tE．nd IfE．

[单选题]在窗体中建立了三个文本框，名称分别为text1、text2和text3，编写以下程序段：PrivateSubText2_LostFocus()D．imiAsIntegerIfIsNumeric(Text2)ThenText3.Text="正确!!"E．lseText2.Text=""Text2.SetFocusText3.Text="错误,再输入!!"E．ndIfE．ndSub当在text2中输入字符串"abcd"后

[单选题]在窗体上画3个标签、3个文本框（名称分别为Text1、Text2和Text3）和1个命令按钮（名称为Command1），外观如图所示。编写如下程序：Private Sub Form_Load（）Text1.Text=""Text2.Text=""Text3.Text=""E．nd SubPrivate Sub Command1_Click（）x=Val（Text1.Text）y=Val（Text2.Text）Text3.Text=f（x，y）E．nd SubF．unction f（B

[单选题]在窗体上画3个标签、3个文本框(名称分别为Text1、Text2和Text3)和1个命令按钮(名称为Command1)，外观如图所示。编写如下程序 Private Sub Form. Load() Text1.Text=" " Text2.Text=" " Text3.Text=" " End Sub Private Sub Command1 Click() x=Val(Text1.Text) y=Val(Text2.Text) Text3.Text=f(x,y) End Sub F

[单选题]在窗体上画3个标签、3个文本框(名称分别为Text1、Text2和Text3)和1个命令按钮 (名称为Command1)，外观如下图所示。编写如下程序： Private Sub Form_Load() Text1.Text="" Text2.Text="" Text3.Text="" End Sub Private Sub Commandl_Click() x=Val(Text1.Text) y=Val(Text2.TextA．4B．6C．8D．12

[单选题]窗体上有Text1、Text2两个文本框及一个命令按钮Command1,编写下列程序D．im y As IntegerPrivate Sub Command1_Click()D．im x As Integerx=2Text1.Text=Fun2(Funl(x),y)Text2.Text=Funl(x)E．nd SubPrivate Function Funl(x As Integer) As Integerx=x+y ∶y=x+yF．unl=x+yE．nd FunctionPrivate Fun