save project

my_tree.py

@@ -13,9 +13,11 @@ pen.backward(150)    # 后退
 pen.down()
 
 pen.down()
-pen.left(180)
 pen.forward(100)
 pen.right(30)
 pen.forward(50)
+pen.up
+pen.left(60)
+pen.forward(-50)
 
 turtle.done()