save project

diy1.py

@@ -7,11 +7,11 @@ import turtle
 pen = turtle.Pen()
 color=["green","red","orange","yellow"]
 screen=turtle.Screen()
-screen.bgcolor()
+screen.bgcolor("black")
 # 请创造师在下面接着创
 for i in range(1,300):
     pen.forward(i)
-    pen.color()
+    pen.pencolor(color[i%4])
     pen.right(91)
 # 隐藏画笔，保存画布
 pen.hideturtle()