save project

diy1.py

@@ -3,15 +3,16 @@
 每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效果
 """
 import turtle
-
-
+screen=turtle.Screen()
+screen.bgcolor("blak")
 pen = turtle.Pen()
-
+pen.speed(999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999)
 #在下面接着创作
-distance=1
-for i in range(300):
- 
-    pen.forward(distance)
+colors=["red","orange","yellow","green"]
+
+for i in range(1,800):    
+    pen.forward(i)
+    pen.pencolor(colors[i%4])
     pen.right(91)
 # 隐藏画笔，保存画布
 pen.hideturtle()