save project

diy1.py

@@ -11,7 +11,9 @@ pen1.fillcolor("red")
 pen1.begin_fill()
 pen1.pencolor("yellow")
 pen1.setheading(45)
-len = 100
+screen = turtle.Screen()
+len = screen.textinput("输入：",len)
+len = int(len)
 pen1.forward(2 * len)
 pen1.circle(len,180)
 pen1.right(90)