save project

diy1.py

@@ -6,10 +6,10 @@ import turtle
 
 pen = turtle.Pen()
 screen=turtle.Screen()
-screen=bgcolor("gray")
+screen.bgcolor("gray")
 colors=["red","orange","yellow","green"]
 for i in range(1,300):
-    pen.pencolor(color[i%4])
+    pen.pencolor(colors[i%4])
     pen.forward(i)
     pen.right(91)
 # 隐藏画笔，保存画布