auto save

diy1.py

@@ -3,20 +3,19 @@ import turtle
 screen=turtle.Screen()
 screen.bgcolor("light blue")
 len=screen.textinput("100","100")
-len=int(len)
 pen=turtle.Pen()
 pen.write("你好\nSB.",font=("Times",30,"normal"))
 pen.hideturtle()
-len=60
+len=50       
 pen.penup()
 pen.goto(100,100)
 pen.pendown()
 pen.pensize(5)
 pen.pencolor("red")
 pen.left(45)
-pen.forward(2*len)
+pen.forward(len*2)
 pen.circle(len,180)
 pen.right(90)
 pen.circle(len,180)
-pen.forward(2*len)
+pen.forward(len*2)
 turtle.done()