auto save

diy1.py

@@ -16,6 +16,7 @@ for i in range(1,300):
     pen.pencolor(colors[i%4])
     pen.forward(distance)
     pen.right(91)
+    distance=distance+1
 # 隐藏画笔，保存画布
 pen.hideturtle()
 turtle.done()