auto save

my_tree.py

@@ -3,6 +3,7 @@ import random
 
 pen = turtle.Turtle()
 pen.color('sienna')
+pen.speed(0)
 # 画布大小
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
@@ -10,10 +11,11 @@ w.bgcolor('wheat')      # wheat小麦
 # 移动到起点
 pen.left(90)
 pen.up()
-pen.backward(150)    # 后退
+pen.backward(200)    # 后退
 pen.down()
 
 def tree(n):
+    
     if n >= 0:
         if n <= 12:
             color_list = ['snow','lightcoral']
@@ -28,7 +30,7 @@ def tree(n):
         pen.right(30*angle)
         length = 1.5 * random.random()
         tree(n-10*length)
-        pen.left(60*length)
+        pen.left(60*angle)
         tree(n-10*length)
         pen.right(30*angle)
         pen.up()
@@ -36,5 +38,5 @@ def tree(n):
         pen.down()
         
 
-tree(60)
+tree(75)
 turtle.done()