save project

my_tree.py

@@ -2,6 +2,7 @@ import turtle
 
 pen = turtle.Turtle()
 pen.color('sienna')
+pen.speed(0)
 # 画布大小
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
@@ -10,10 +11,10 @@ def tree(n):
     if n>=10:
         pen.forward(n)
         pen.right(30)
-        tree(n-10)
+        tree(n-15)
 
         pen.left(60)
-        tree(n-10)
+        tree(n-15)
 
         pen.right(30)
         pen.up()
@@ -28,6 +29,6 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
-tree(120)
+tree(100)
 
 turtle.done()