save project

my_tree.py

@@ -9,7 +9,7 @@ w.bgcolor('wheat')      # wheat小麦
 # 移动到起点
 pen.left(90)
 pen.up()
-pen.backward(250)    # 后退
+pen.backward(150)    # 后退
 pen.down()
 
 # pen.fd(100)
@@ -23,9 +23,9 @@ def tree(n):
     if n >= 50:
         pen.fd(n)
         pen.right(30)
-        tree(n-10)
+        tree(n-50)
         pen.left(60)
-        tree(n-10)
+        tree(n-50)
         pen.right(30)
         pen.up()
         pen.backward(n)
@@ -33,4 +33,3 @@ def tree(n):
         
 tree(100)
 turtle.done()
-pen.speed(0)