save project

xkd.py/zddd.py

 import turtle
 import turtle
 pen = turtle.Pen()
 pen = turtle.Pen()
-pen.pencolor("red")
-for i in range(1,100):
-    pen.forward(i)
-    pen.right(91)
-for i in range(99,200):
-    pen.pencolor("blue")    
-    pen.forward(i)
-    pen.right(91)
-for i in range(199,300):
-    pen.pencolor("yelllow")    
+scree=turtle.Screen()
+scree.bgcolor("black")
+color=["red","white","yellow","pink"]
+for i in range(1,300):
+    pen.pencolor(color[i%4])
     pen.forward(i)
     pen.forward(i)
     pen.right(91)          
     pen.right(91)          
 pen.hideturtle()
 pen.hideturtle()