save project

1.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("blue")
 pen.write("爸爸妈妈：\n我学会了用turtle写字\npython真好玩",font=("times",20,"normal"))
 pen.write("爸爸妈妈：\n我学会了用turtle写字\npython真好玩",font=("times",20,"normal"))
 pen.hideturtle()
 pen.hideturtle()
+len=60
 
 
 pen.pensize(10)
 pen.pensize(10)
 pen.pencolor("red")
 pen.pencolor("red")
 
 
 pen.left(45)
 pen.left(45)
-pen.forward(100)
-pen.circle(50,180)
+pen.forward(len*2)
+pen.circle(30,180)
 pen.right(90)
 pen.right(90)
-pen.circle(50,180)
-pen.forward(100)
+pen.circle(30,180)
+pen.forward(len*2)
 turtle.done
 turtle.done
\ No newline at end of file