save project

my_tree.py

@@ -13,3 +13,12 @@ pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
 turtle.done()
 turtle.done()
+
+pen.left(90)
+pen.up()
+pen.backward(150)
+pen.down()
+
+
+
+