save project

my_tree.py

@@ -15,7 +15,7 @@ pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
 pen.down()  
 pen.down()  
 
 
-turtle.done()
+
 def tree(n):
 def tree(n):
     if n>=0:
     if n>=0:
         pen.speed(0)
         pen.speed(0)