How to Select Edge Ring interval


#1

hi,I have a problem that bothers me for a long time ,Now known
"
fn PolyRing =
(
try
(
for i in selection do (i.EditablePoly.SelectEdgeRing ())
) catch()
)
PolyRing()
"
this function can loop the selected line,but i don’t know how to modify the time interval of ring selection,