save project

diy1.py

@@ -6,14 +6,15 @@ screen.bgcolor("light blue")
 pen.penup()
 pen.goto(100,-100)
 pen.write("谢谢你给我的回信",font=("Times",30,"normal"))
+len=50
 pen1=turtle.Pen()
 pen1.pencolor("red")
 pen1.pensize(5)
 pen1.left(45)
-pen1.forward(100)
-pen1.circle(50,180)
+pen1.forward(2*len)
+pen1.circle(len,180)
 pen1.right(90)
-pen1.circle(50,180)
+pen1.circle(len,180)
 pen1.forward(100)
 pen1.hideturtle()
 turtle.done()