auto save

my_tree.py

+import turtle
+import time
+import random
+import pygame
+time1=time.time()
+pen = turtle.Turtle()
+
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+l=['snow','lightcoral']
+pen.speed(10000000000)
+a=l
+def aaa(n):
+    if n >=0:    
+        if n<=15:
+
+            pen.pensize(n)
+            pen.pencolor(random.choice(a))
+        else:
+            pen.pensize(n/10)
+            pen.color('sienna')
+        l=random.randint(5,15)
+        g=random.randint(15,20)
+        pen.forward(n)  
+        pen.right(g)
+        aaa(n-l)
+        pen.left(g*2)
+        aaa(n-l)
+        pen.right(g)
+        pen.up()
+        pen.backward(n)
+        pen.down()
+
+# 移动到起点
+pen.left(90)
+pen.up()
+pen.backward(450)    # 后退
+pen.down()
+aaa(80)
+time2=time.time()
+print(time2-time1)
+turtle.done()