Private Sub Form_Click()x = InputBox("较小的数")y = InputBox("较大的数")For a = x To yFor i = 2 To Sqr(a)r = a Mod iIf r = 0 ThenExit ForEnd IfNext iIf i > Sqr(a) ThenText1 = Text1 + Str(a)s = s + aEnd IfNext aText2 = Val(s)End Sub