save project

diy1.py

 """
 """
 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()
 screen = turtle.Screen()
 screen = turtle.Screen()
+screen = turtle.bgcolor("black")
 # 请创造师在下面接着创作
 # 请创造师在下面接着创作
 colors=["red","orange","blue","green"]
 colors=["red","orange","blue","green"]
 for i in range(1,300):
 for i in range(1,300):