auto save

my_tree.py

 import turtle
 
+def tree(n):
+    if n > 50:
+        pen.forward(n)
+        pen.
 pen = turtle.Turtle()
 pen.color('sienna')
 # 画布大小
@@ -11,5 +15,21 @@ pen.left(90)
 pen.up()
 pen.backward(150)    # 后退
 pen.down()
-
+'''
+pen.forward(100)
+pen.right(30)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+pen.left(60)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+pen.right(30)
+pen.penup()
+pen.backward(100)
+pen.pendown()
+'''
 turtle.done()