save project

diy1.py

@@ -6,7 +6,7 @@ import turtle
 pen = turtle.Pen()
 screen=turtle.Screen()
 # 请创造师在下面接着创作
-screen.bgcolor("grey")
+screen.bgcolor("black")
 colors=["red","orange","yellow","green"]
 for i in range(1,300):
     pen.color(colors[i%4])