save project

my_tree.py

-import turtle
+import turtle 
 
 pen = turtle.Turtle()
 pen.color('sienna')
@@ -12,4 +12,16 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
+pen.forward(100)
+pen.right(30)
+pen.fd(50)
+pen.pu()
+pen.backward(50)
+pen.left(60)
+pen.pd()
+pen.fd(50)
+pen.pu()
+pen.backward(50)
+pen.left(150)
+pen.fd(100)
 turtle.done()