save project

diy1.py

@@ -3,14 +3,13 @@
 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
 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
 import turtle
-
+screen=turtle.Screen()
+screen.bgcolor("black")
 pen = turtle.Pen()
 pen = turtle.Pen()
-# 请创造师在下面接着创作
-distance=1
-for i in range(800):
-    pen.forward(distance)
-    distance+=1
+colors=["red","black","blue","black"]
+for i in range(1,300):
+    pen.color(colors[i%4])
+    pen.forward(i)
     pen.right(91)
     pen.right(91)
-# 隐藏画笔，保存画布
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()
\ No newline at end of file