save project

diy1.py

@@ -5,9 +5,12 @@
 import turtle
 import turtle
 
 
 pen = turtle.Pen()
 pen = turtle.Pen()
+screen = turtle.Screen()
+screen.bgcolor("black")
 # 请创造师在下面接着创作
 # 请创造师在下面接着创作
-
-for i in range(3,700):
+co = ["red","green","yellow","orange"]
+for i in range(1,700):
+    pen.pencolor(co[1%4])
     pen.forward(i)
     pen.forward(i)
 
 
     pen.right(121)
     pen.right(121)