save project

diy1.py

@@ -2,14 +2,17 @@
 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
 pen.write("你好\荣.",font=("Times",30,"normal"))
 pen.write("你好\荣.",font=("Times",30,"normal"))
+screen=turtle.Screen()
+screen.bgcolor('light blue')
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()
 pen.pensize(5)
 pen.pensize(5)
 pen.pencolor("red")
 pen.pencolor("red")
 pen.left(45)
 pen.left(45)
-pen.forward(100)
-pen.circle(50,180)
+len=50
+pen.forward(2*len)
+pen.circle(len,180)
 pen.right(90)
 pen.right(90)
-pen.circle(50,180)
-pen.forward(100)
+pen.circle(len,180)
+pen.forward(2*len)
 turtle.done()
 turtle.done()
\ No newline at end of file