auto save

bug.py

 import turtle 
 #背景颜色
 screen=turtle.Screen()
-screen.bgcolor("light blue")
+screen.bgcolor("black")
 #写字
 pen=turtle.Pen()
 pen.penup()
@@ -10,7 +10,7 @@ pen.write("Hi，诺依~\n用python写电子贺卡真是太有趣啦~\n我也喜
 pen.hideturtle()
 #画爱心
 pen1=turtle.Pen()
-pen1.pencolor("red")
+pen1.pencolor("green")
 pen1.pensize(5)
 len=screen.textinput("提示","爱心多大")
 lovesize=int(len)