save project

my_tree.py

-import turtle
+from turtle import *
+import random
 
-pen = turtle.Turtle()
-pen.color('sienna')
+color('sienna')
 # 画布大小
-w = turtle.Screen()
+w = Screen()
 w.bgcolor('wheat')      # wheat小麦
 
 # 移动到起点
-pen.left(90)
-pen.up()
-pen.backward(150)    # 后退
-pen.down()
+left(90)
+up()
+backward(150)    # 后退
+down()
 
-turtle.done()
+def tree(n):
+    if n>=0:
+        fd(n)
+        q = random.rand(0,30)
+        rt()
+        tree(n-10)
+        lt(60)
+        tree(n-10)
+        right(30)
+        up()
+        bk(n)
+        down()
+tree(60)
+done()