save project

diy1.py

 import turtle
 import turtle
+
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+
 # pen=turtle.Pen()
 # pen=turtle.Pen()
 # pen.write("你好.",font=("Times",30,"normal"))
 # pen.write("你好.",font=("Times",30,"normal"))
 # pen.hideturtle()
 # pen.hideturtle()
 # turtle.done()
 # turtle.done()
-pen=turtle.Pen()
+
+
+pen1=turtle.Pen()
 pen1.pensize(5)
 pen1.pensize(5)
 pen1.pencolor("red")
 pen1.pencolor("red")
+len=60
 pen1.left(45)
 pen1.left(45)
-pen1.forward(100)
-pen1.circle(50,180)
+pen1.forward(2*len)
+pen1.circle(len,180)
 pen1.right(90)
 pen1.right(90)
-pen1.circle(50,180)
-pen1.forward(100)
+pen1.circle(len,180)
+pen1.forward(2*len)
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()