单击按钮,在窗体标题栏中显示"第一次作业",正确的代码为 。
A.
Private Sub Command1_Click() Form1.Caption = "第一次作业" End Sub
B.
Private Sub Form_Click() Form1.Caption = "第一次作业" End Sub
C.
Private Sub Command1_Click() Form1.Text = "第一次作业" End Sub
D.
Private Sub Command1_Click() Command1.Caption = "第一次作业" End Sub