save project

diy1.py

@@ -6,8 +6,12 @@ import turtle
 
 
 pen = turtle.Pen()
 pen = turtle.Pen()
 # 请创造师在下面接着创作
 # 请创造师在下面接着创作
+screen = turtle.Screen()
+screen.bgcolor("black")
 distance=1
 distance=1
-for i in range(0,100,1):
+colors["red","blue","yellow","green"]
+for i in range(0,100):
+    pen.pencolor(colors[i%4])
     pen.forward(distance)
     pen.forward(distance)
     distance+=1
     distance+=1
     pen.right(91)
     pen.right(91)