save project

diy1.py

@@ -6,7 +6,7 @@ import turtle
 screen = turtle.Screen()
 pen = turtle.Pen()
 # 请创造师在下面接着创作
-screen.bgcolor(black)
+screen.bgcolor("black")
 colors = ["blue","green","write","red"]
 for i in range(1,300):
     pen.color(colors[i%4])