[填空题] 设有代码如下,当双击窗体内的某个位置时,命令按钮Command1和命令按钮Command2的标题分别为11、 【9】 。 Private SubForm_Load() Command1. Caption = "1" Command2. Caption = "2" End Sub Private Sub Form_Click() Command1. Caption = "11" End Sub Private Sub Form_DblC1ick( ) Command2. caption = 22 End Sub