save project

my_tree.py

@@ -13,3 +13,18 @@ pen.backward(150)    # 后退
 pen.down()
 
 turtle.done()
+
+pen.forward(100)
+pen.right(30)
+pen.forward(50)
+pen.up()
+pen.backward(50)
+pen.done()
+pen.left(30)
+pen.forward(50)
+pen.up()
+pen.backward(50)
+pen.done()
+
+
+