save project

diy1.py

@@ -2,12 +2,13 @@
 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
-
+import turtle                                                    
 pen = turtle.Pen()
 pen.pendown()
-pen.speed(100000)
+pen.speed(100)
+color=["red","green","orange","yellow"]
 for i in range(1,1000):
+    pen.color(color[i%4])
     pen.forward(i)
     pen.right(91)
 pen.hideturtle()