save project

diy1.py

-"""
-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
 p = turtle.Pen()
-p.pencolor("yellow")
-p.fillcolor("red")
-p.speed(1000)
-p.begin_fill()
-
-for i in range(1,100,500,1000):
-    p.fd(d)
-    
+p.speed(0)
+s=turtle.Screen()
+s.bgcolor("black")
+color=["red","orange","blue","green"]
+for i in range(550):
+    p.fd(i)   
     p.right(91)
-pen.hideturtle()
+    p.pencolor(color[i%4])
+p.hideturtle()
 turtle.done()
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