auto save

diy1.py

@@ -6,7 +6,8 @@ pen.goto(100,0)
 pen.write("你好~ ~",font=("Times",30,"normal"))
 pen.hideturtle()
 pen1=turtle.Pen()
-len=40
+len=screen.
+len=45
 pen1.pencolor("red")
 pen1.pensize(5)
 pen1.left(45)
@@ -18,4 +19,4 @@ pen1.forward(2*len)
 pen1.hideturtle()
 screen=turtle.Screen()
 screen.bgcolor("light pink")
-turtle.done()
+turtle.done()
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