save project

my_tree.py

@@ -12,4 +12,16 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
+pen.forward(100)
+pen.left(30)
+pen.forward(50)
+pen.right(180)
+pen.forward(50)
+pen.left(120)
+pen.forward(50)
+
+pen.left(180)
+pen.forward(50)
+pen.left(30)
+pen.forward(100)
 turtle.done()