rt-thread/examples/module/ftk_app/ftk_demo/t6.xul

<?xml version="1.0" encoding="utf-8"?>
<window value="Radio button">
	<radio_group x="0" y="0" w="$ww" h="$wh/3">
	<radio_button  id="1" x="5" y="10" w="$ww/2" h="50" checked="1" value="Radio Option1" />
	<radio_button  id="3" x="5" y="60" w="$ww/2" h="50" checked="0" value="Radio Option2" />
	</radio_group>
	
	<radio_group x="0" y="$wh/3+5" w="$ww" h="$wh/3">
	<radio_button  id="1" x="5" y="10" w="$ww/2" h="50" checked="1" value="Radio Option1" />
	<radio_button  id="3" x="5" y="60" w="$ww/2" h="50" checked="0" value="Radio Option2" />
	</radio_group>

	<button id="99" x="5" y="3*$wh/4" w="$ww/2-5" h="50" value="Save" />
	<button id="100" x="$ww/2" y="3*$wh/4" w="$ww/2-5" h="50" value="Quit" />
</window>