save project

diy1.py

@@ -6,11 +6,13 @@ import turtle
 d=1
 pen = turtle.Pen()
 # 请创造师在下面接着创作
+
 for i in range(1,300):
     pen.forward(d)
     pen.right(91)
     d+=1
-
+    colors=["green","blue","red","yellow"]
+    pen.pencolor(colors[i%4])
 # 隐藏画笔，保存画布
 pen.hideturtle()
 turtle.done()
\ No newline at end of file