save project

diy1.py

@@ -2,14 +2,15 @@
 #使用turtle模块画图
 #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
-
 pen = turtle.Pen()
+screeen=turtle.Screen()
+screeen.bgcolor("black")
+colors=["green","red","orange","yellow",]
 # 请创造师在下面接着创作
-
-for i in range(1,100):
+for i in range(1,300):
+    pen.pencolor(colors[i%4])
     pen.forward(i)
-  
-    pen.right(91)
+    pen.right(100)
 # 隐藏画笔，保存画布
 turtle.hideturtle()
 turtle.done()
\ No newline at end of file