save project

diy1.py

@@ -2,10 +2,11 @@
 # 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
 import turtle
-
+colors=["red","orange","yellow","green"]
 pen=turtle.Pen()
 for i in range(1,301):
     pen.right(91)
     pen.forward(i)
+    pen.pencolor(colors[i%4])
 pen.hideturtle()
 pen.done()
\ No newline at end of file