save project

my_tree.py

@@ -20,9 +20,10 @@ def tree(n):
         tree(n-10)
         tree(n-10)
         pen.right(30)
         pen.right(30)
         pen.up()
         pen.up()
-        pen.backward()
+        pen.backward(n)
         pen.down()
         pen.down()
 
 
+tree(100)
 
 
 
 
 turtle.done()
 turtle.done()