save project

my_tree.py

@@ -5,7 +5,7 @@ pen.color('sienna')
 # 画布大小
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
-pen.speed(99999999999999999999999999999999999999999999999999999999999999999999999999)
+pen.speed(999)
 # 移动到起点
 pen.left(90)
 pen.up()