save project

diy1.py

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