save project

diy1.py

@@ -5,13 +5,12 @@
 import turtle
 pen = turtle.Pen()
 screen = turtle.Screen()
-screen = bgcolor("black")
+screen.bgcolor("black")
 colors=["red","blue","yellow","green"]
-pen.pencolor(colors[i%4])
 # 请创造师在下面接着创作
 for i in range(1,300):
+    pen.pencolor(colors[i%4])
     pen.forward(i)
-    pen.right(91)
-# 隐藏画笔，保存画布
+    pen.right(91)# 隐藏画笔，保存画布
 pen.hideturtle()
 turtle.done()
\ No newline at end of file