save project

diy1.py

@@ -6,6 +6,8 @@ import turtle
 
 pen = turtle.Pen()
 # 请创造师在下面接着创作
+screen=turtle.Screen()
+screen.bgcolor("black")
 colors=["red","orange","yellow","green"]
 for i in range(1,300):
     pen.forward(i)