save project

diy1.py

-9"""
+"""
 使用turtle模块画图
 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，查看效果
 """
 """
 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
+colors=["grey","green","red","brown"]
 for i in range(1,300):
 for i in range(1,300):
-    pen.forward(1)
+    pen.forward(i)
+    pen.pencolor(colors[i%4])
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()