A.命令按鈕、標(biāo)簽 B.窗體、命令按鈕 C.文本框、窗體 D.標(biāo)簽、文本框
A.Dim As String xuehao B.Dim xuehao As String C.Dim String As xuehao D.Const xuehao As String
A. B. C. D.