问题
单项选择题
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_Load0
Text1.Text=""
Text2.Text=""
End Sub
Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer)
S2=S2&Chr(KeyCode)
End Sub
Private Sub Text1_KeyPress(KeyAscii As Integer)
S1=S1 & Chr(KeyAscii)
End Sub
Private Sub Command1_Click()
Text1.Text=S2
Text2.Text=S1
S1=""
S2=""
End Sub
程序运行后,在Text1中输入“abc”,然后单击命令按钮,在文本框Text1和Text2中显示的内容分别为( )。
A.abc和ABC
B.abc和abc
C.ABC和abc
D.ABC和ABC
答案
参考答案:C