save project

diy2.py

@@ -19,11 +19,16 @@ while True:
         print("密码错误")'''
 
 import turtle
-turtle.speed(20)
-turtle.pencolor("black")
+turtle.screensize(0,0,"black")
+colors=["red","orange","yellow","green"]
+turtle.speed(30)
 for i in range(0,300):
+    turtle.pencolor(colors[i%4])
     turtle.forward(i)
     turtle.right(91)
     turtle.hideturtle()
 turtle.done()
 
+
+
+