? <mx:Grid>???
?????? <mx:GridRow verticalAlign="middle" horizontalAlign="left">
??? ??? ??? <mx:GridItem verticalAlign="bottom" horizontalAlign="left">
??? ??? ??? ??? 列一
??? ??? ??? </mx:GridItem>
??????????? <mx:GridItem verticalAlign="bottom" horizontalAlign="left">
??? ??? ??? ??? 列二
??? ??? ??? </mx:GridItem>??? ???
??????? </mx:GridRow>
?????? <mx:GridRow verticalAlign="middle" horizontalAlign="left">
??? ??? ??? <mx:GridItem verticalAlign="bottom" horizontalAlign="left">
??? ??? ??? ??? 列一
??? ??? ??? </mx:GridItem>
??????????? <mx:GridItem verticalAlign="bottom" horizontalAlign="left">
??? ??? ??? ??? 列二
??? ??? ??? </mx:GridItem>??? ???
??????? </mx:GridRow>
??? </mx:Grid>