save project

diy1.py

-"#urtle.Pen()
-# 请创造师在下面接着创作
-#distance=1
-for i in range(1,300):
+import turtle
+screen=turtle.Screen()
+screen.bgcolor("black")
+pen=turtle.Pen()
+colors=["red","orange","yellow","green"]
+for i in range(300):
+    pen.pencolor(colors[i%4])
     pen.forward(i)
     pen.forward(i)
    # distance+=1
    # distance+=1
     pen.right(91)
     pen.right(91)