窗体中有3个命令按钮,分别命名为Commandl、Command2和Command3。当单击Commandl按钮时,Command2按
A.private sub Command1 Click() Command2.Visible—trueCommand3.Visible—false End Sub
B.private sub Commandl Click() Command2.Enable—trueCommand3.Enable=falseEnd Sub
C.private sub Command1 Click() Command2.Enable—trueCommand3.Visible—falseEnd Sub
D.private sub Command1 Click() Command2.Visible=trueCommand3.Enable—falseEnd Sub