save project

diy1.py

@@ -4,11 +4,15 @@
 """
 """
 import turtle
 import turtle
 pen = turtle.Pen()
 pen = turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
 pen.speed(200)
 pen.speed(200)
-for i in range (1,350,3):
+colors=["red","yellow","blue","green"]
+for i in range (1,650,3):
+    pen.pencolor(colors[i%4])
     pen.left(91)
     pen.left(91)
     pen.forward(i)
     pen.forward(i)
-# 请创造师在下面接着创作
-# 隐藏画笔，保存画布
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()
+# 请创造师在下面接着创作
+# 隐藏画笔，保存画布
\ No newline at end of file