save project

diy1.py

 import turtle
 import turtle
+screen=turtle.Screen() 
+screen.bgcolor("light green")
+pen1=turtle.Pen()
+pen1.penup()
+pen1.goto(100,-100)
+pen1.write("祝你丫生日快乐",font=("Time",30,"normal"))
+pen1.hideturtle()
 t=turtle.Pen()
 t=turtle.Pen()
+len=10
 t.pencolor("red")
 t.pencolor("red")
 t.fillcolor("red")
 t.fillcolor("red")
 t.pensize(5)
 t.pensize(5)
 t.begin_fill()
 t.begin_fill()
 t.left(45)
 t.left(45)
-t.forward(200)
-t.circle(100,180)
+t.forward(2*len)
+t.circle(len,180)
 t.right(90)
 t.right(90)
-t.circle(100,180)
-t.forward(200)
+t.circle(len,180)
+t.forward(2*len)
 t.end_fill()
 t.end_fill()
 turtle.done()
 turtle.done()