save project

my_tree.py

@@ -12,4 +12,12 @@ pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
-turtle.done()
+
+pen.down()
+pen.forward(100)
+pen.right(30)
+pen.forward(50)
+pen.backward(50)
+pen.left(60)
+pen.forward(50)
+turtle.done()
\ No newline at end of file