save project

diy1.py

@@ -10,12 +10,13 @@ pen.hideturtle()
 pensb = turtle.Pen()
 pensb.pencolor("red")
 pensb.pensize(5)
-len=60
+len=screen.textinput("提示","你要画多大")
+rove = int(len)
 pensb.left(45)
-pensb.forward(2*len)
-pensb.circle(len,180)
+pensb.forward(2*rove)
+pensb.circle(rove,180)
 pensb.right(90)
-pensb.circle(len,180)
-pensb.forward(2*len)
+pensb.circle(rove,180)
+pensb.forward(2*rove)
 pensb.hideturtle()
 turtle.done()