auto save

diy1.py

 import turtle
 len=50
 screen=turtle.Screen()
-screen.bgcolor("blue")
+screen.bgcolor("orange")
 pen=turtle.Pen()
 pen.penup()
 pen.goto(100,-100)
 pen.write("妈妈，\n谢谢你。\n张榕瑞",font=("Times",20,"normal"))
 pen.hideturtle()
 pen1=turtle.Pen()
-pen1.pensize(5)
-pen1.pencolor("red")
+pen1.pensize(0.001)
+pen1.pencolor("green")
 pen1.left(45)
 pen1.forward(2*len)
 pen1.circle(len,180)