save project

diy1.py

@@ -5,10 +5,12 @@
 import turtle
 
 pen = turtle.Pen()
-# 请创造师在下面接着创作
-pen.speed(100)
-pen.color("green")
+screen=turtle.Screen()
+screen.bgcolor("black")
+color=['red','blue','cyan','yellow']
+pen.speed(200)
 for i in range(1,10000,):
+    pen.pencolor(color[i%4])
     pen.forward(i)
     pen.right(91)
 # 隐藏画笔，保存画布