save project

diy1.py

@@ -5,10 +5,12 @@
 import turtle
 color=["green","red","orange","yellow"]
 pen = turtle.Pen()
+screen.bgcolor("black")
 # 请创造师在下面接着创作
 distance=1
 for i in range(300):
     pen.pencolor(color[i%4])
+
     pen.forward(i)
     distance+=1
     pen.right(91)