save project

diy1.py

@@ -5,12 +5,14 @@
 import turtle
 
 pen = turtle.Pen()
+sc = turtle.Screen()
+colors = ['red','orange','yellow','green']
+sc.bgcolor('black')
 # 请创造师在下面接着创作
 pen.speed(0)
-distance=1
-for i in range(300):
-    pen.forward(distance)
-    distance+=1
+for i in range(1,1000):
+    pen.forward(i)
+    pen.pencolor(colors[i%4])
     pen.right(91)
 # 隐藏画笔，保存画布
 pen.hideturtle()