在窗体上画一个命令按钮Command1和两个文本框，名称分别为Text 1和 Text 2 Text 2。编写如下两个事件过程： Dim str As String, strl As String Private Sub form_load() TextText = " " TextText = " " TextEnabled = False TextEnabled = False End Sub Private Sub Form. KeyPress(KeyAscii As Integer) str= str&Chr(KeyAscii) End Sub Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer) str1 = strl&Chr(KeyCode) End Sub Private Sub Command1_Click() TextText =str TextText = str1 str= " " str1= " " End Sub 当在设计阶段把窗体KeyPreview属性设置为True时，程序运行过程中，在键盘上输入小写字母abc，然后单击命令按钮，则文本框Text1中显示的内容为 ______ 。

A．abc

B．不显示任何信息

C．ABC

D．出错

[单选题]在窗体上画一个命令按钮和两个文本框，其名称分别为Command1、Text1和Text2，然后编写如下程序： Dim S1 As String,S2 As String Private Sub Form_Load() Text1.Text＝"" Text2.Text＝"" End Sub Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer) S2=S2 & Chr(Keycode) End Sub Priva

[单选题]在窗体上画一个命令按钮和两个文本框，其名称分别为Command1、Text1和Text2，在属性窗V1中把窗体的KeyPreview属性设置为True，然后编写如下程序：D．im S1 As String，S2 As StringPrivate Sub Form_Load()Text1．Text=””Text2．Text=””TeXt1．Enabled=FalseText2．Enabled=FalseE．nd SubPrivate Sub Form_KeyDown(KeyCode As Inte

[单选题]在窗体上画一个命令按钮Command1和两个文本框，名称分别为Text1和Text2。编写如下两个事件过程：D．im Str1 As String，str2 As StringPrivate Sub form_load()Text1.Text=""Text2.Text=""Text1.Enabled=FalseText2.Enabled=FalseE．nd SubPrivate Sub Form_KeyPress(KeyAscii As Integer)str1=str1 & C

[单选题]在窗体上画一个命令按钮command1和两个文本框,名称分别为Text1和Text2。编写如下两个事件过程:D．im Str1 As String, str2 As StringPrivate Sub form_load()Text1.Text=""Text2.Text=""Text1.Enabled=FalseText2.Enabled=FalseE．nd SubPrivate Sub Form.str1=str1& Chr(KeyAscii)E．nd SubPrivate S

[试题]在窗体上画一个命令按钮和一个文本框，其名称分别为 Command1 和 Text1 ，然后编写如下事件过程：Private Sub Command1_Click（）D．im inData As StringText1.Text=" "Open "d:|| ML ） ||Myfile txt" for ________ As #1D．o While ________Input # 1,inDataText1.Text=Text1.Text+inDataLoopC．lose #1E．nd S

[单选题]（ 29 ）在窗体上画一个命令按钮和两个文本框，其名称分别为 Command1 、 Text1 和 Text2 ，然后编写如下程序：D．im S1 As String, S2 As StringPrivate Sub Form_Load()Text1.Text = ""Text2.Text = ""E．nd SubPrivate Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)S2 = S2 & Chr(KeyCode

[单选题]在窗体上画一个命令按钮和一个文本框，名称分别为Command1和Text1，然后编写如下程序：Private Sub Command1_Click（）a=InputBox（“请输入日期（1~31）”）t=”旅游景点：” _& IIf （ a > 0 And a <= 10,”长城”,””） _& IIf （ a >10 And a <= 20,”故宫”,””） _& IIf （ a > 20 And a <= 31,”颐和园”,””）T

[单选题]在窗体上画一个命令按钮和一个文本框(名称分别为Command1和Text1)，并把窗体的KeyPreview属性设置为True，然后编写如下代码：Dim SaveAll As StringPrivate Sub Form_ Load () Show Text1.Text=" " Text1.SetFocusEnd SubPrivate Sub Command1_ Click() Text1. Text=LCase(SaveAll)+SaveAllEnd SubPrivate Sub Form

[单选题]在窗体上画一个命令按钮和一个文本框,名称分别为Command1和Text1,然后编写如下程序:Private Sub Command1_Click()a=InputBox("请输入日期 (1~31)")t="旅游景点:"& IIf(a>0 And a<=10, "长城","") &IIf(a>10 And a<=20, "故宫","") & IIf(a>20 And a<=31, "颐和园","")Tex

[单选题]在窗体上画一个命令按钮和一个文本框，名称分别为Command1和Text1，然后编写如下程序：Private Sub Command1_Click()a=InputBox("请输入日期(1～31)")t="旅游景点：" &IIf(a＞0 And a＜=10，"长城"，"") & _IIf(a＞10 And a＜=20，"故宫"，"") & IIf(a＞20 And a＜=31，"颐和园"，"")Text1.Text=tE．nd Sub程序运