auto save

my_tree.py

 import turtle
-
+import random
 pen = turtle.Turtle()
 pen.color('sienna')
 # 画布大小
@@ -13,16 +13,15 @@ pen.backward(150)    # 后退
 pen.down()
 pen.pensize(5)
 def s(n):
-  if n>=50:
-        pen.forward(n)
-        pen.right(30)
-        s(n-10)
-        pen.up()
-        pen.left(60)
-        s(n-10)
-        pen.right(30)
-        pen.backward(n)
-        pen.down()
+  if n>=0:
+      if n<=12:
+          list=['snow','lightcoral']
+          color=random.choice(list)
+          pen.color(color)
+          pen.pensize(n/3)
+      else:
+          
+
 s(100)
 
 turtle.done()