save project

diy1.py

@@ -3,8 +3,10 @@
 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
+colur=["red","green","orange","yellow" ]
 pen=turtle.Pen()
 pen=turtle.Pen()
 for i in range (1,300):
 for i in range (1,300):
+    pen.pencolor(colur[i%4])
     pen.forward(i)
     pen.forward(i)
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()