17岁生日3棵树,以后每年过生日种树,并且每年都要比前一年多栽两棵树,那么多少岁可以种到或超过100棵树?程序如下,请补充完整: Private Sub Command1_Click () Dim age As Integer, tree As Integer, sum As Integer sum = 3 : tree = 3 : age = 17 Do age = + 1 tree = sum = sum + tree Loop Until sum Label1.Caption = Label1.Caption & age & ” 岁共种到了 ” & sum & ” 棵树 ” End sub