save project

diy1.py

 """
 使用turtle模块画图
-每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效果
+每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效      
 """
-import turtle
 
-pen = turtle.Pen()
-# 请创造师在下面接着创作
-distance=1
-for i in range(300):
-    pen.forward(distance)
-    distance+=1
-    pen.right(121)
-# 隐藏画笔，保存画布
-pen.hideturtle()
-turtle.done()
\ No newline at end of file
+import turtle
+p=turtle.Pen()
+s=turtle.Screen()
+s.bgcolor("black")
+p.speed(20)
+cs=["blue","white","yellow","red"]  
+for i in range(1,700):
+    p.pencolor(cs[i%4])
+    p.forward(i)
+    p.right(91)
+p.hideturtle()
+turtle.done() 
+  
\ No newline at end of file