save project

diy1.py

@@ -5,9 +5,13 @@
 import turtle
 
 pen = turtle.Pen()
+s = turtle.Screen()
+s.bgcolor("black")
 # 请创造师在下面接着创作
 pen.speed(0)
+colors = ["red","green","orange","yellow"]
 for i in range(1,300):
+    pen.pencolor(colors[i%4])
     pen.forward(i)
     pen.right(91)
 # 隐藏画笔，保存画布