save project

diy1.py

@@ -4,16 +4,18 @@ a.penup()
 a.goto(-100,0)
 a.write('听我说谢谢你',font=('Tine',30,'normal'))
 
+len=50
 a1=turtle.Pen()
-a1.forward(100)
+a1.pencolor('red')
 a1.left(45)
-a1.forward(100)
-a1.circle(50,180)
+a1.forward(2*len)
+a1.circle(len,180)
 a1.right(90)
-a1.circle(50,180)
-a1.forward(100)
+a1.circle(len,180)
+a1.forward(2*len)
 
 s=turtle.Screen()
-s.bgcolor('pink')
+s.bgcolor('yellow')
 a.hideturtle()
-turtle.done()
\ No newline at end of file
+turtle.done()
+