save project

diy1.py

@@ -6,11 +6,14 @@ import turtle
 
 pen = turtle.Pen()
 # 请创造师在下面接着创作
-distance=1
+screen=turtle.Screen()
+screen.bgcolor("black")
+a=["red","orange","yellow","green"]
 for i in range(300):
+    pen.pencolor(a[i%4])
     pen.forward(i)
     
-    pen.right(47)
+    pen.right(91)
 # 隐藏画笔，保存画布
 pen.hideturtle()
 turtle.done()
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