function addtail (l, e) if l.next == nil then l.next = e return end addtail(l.next, e)endfunction plist (l) if not l then return end print(l, l.val, l.next) plist(l.next)endhead = {val = 0}e1 = {val = 1}e2 = {val = 2}print "element\t\t\tvalue\tnext"plist(head)print ""addtail(head, e2)plist(head)addtail(head, e1)print ""plist(head)
function addtail (l, e)
if l.next == nil then
l.next = e
return
end
addtail(l.next, e)
end
function plist (l)
if not l then return end
print(l, l.val, l.next)
plist(l.next)
end
head = {val = 0}
e1 = {val = 1}
e2 = {val = 2}
print "element\t\t\tvalue\tnext"
plist(head)
print ""
addtail(head, e2)
plist(head)
addtail(head, e1)
print ""
plist(head)