auto save

diy1.py

@@ -2,10 +2,18 @@
 使用turtle模块画图
 每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效果
 """
-import turtle
+from turtle import *
+bgcolor("black")
+color=["red","yellow","orange","blue"]
+a = 1
+speed(0)
+for i in range(1000):
+    pencolor(color[i%4])
+    fd(a)
+    a += 1
+    left(91)
+done()
 
-pen = turtle.Pen()
-screen = turtle.Screen()