save project

my_tree.py

 import turtle
-
+import random
 pen = turtle.Turtle()
 pen.color('sienna')
 # 画布大小
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
-def tree(n):
+#snow lightcoral
     if n>50:
         pen.speed(100)
         pen.fd(n)
-
         pen.rt(30)
         tree(n-10)
         pen.left(60)