save project

diy1.py

@@ -2,20 +2,21 @@
 import turtle
 pen1=turtle.Pen()
 pen1.penup()
-pen1.goto(100,-100)
+pen1.goto(-40,-100)
 pen1.write("你好呀!",font=("Times",20,"normal"))
 pen1.hideturtle()
 screen=turtle.Screen()
 screen.bgcolor("gold")
 pen=turtle.Pen()
+len=100
 pen.pencolor("red")
 pen.pensize(5)
 pen.left(45)
-pen.forward(100)
-pen.circle(50,180)
+pen.forward(len*2)
+pen.circle(len,180)
 pen.right(90)
-pen.circle(50,180)
-pen.forward(100)
+pen.circle(len,180)
+pen.forward(len*2)
 pen.hideturtle()
 turtle.done()