save project

my_tree.py

@@ -25,13 +25,6 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
-pen.forward(100)
-pen.right(30)
-pen.forward(50)
-pen.backward(50)
-pen.left(60)
-pen.forward(50)
-pen.backward(50)
-pen.right(30)
-pen.backward(100)
+tree(100)
+
 turtle.done()
\ No newline at end of file