turtle库绘制五星红旗

turtle库是Python中一个强大的绘图库，可以用来创建各种图形和动画。下面是使用turtle库绘制五星红旗的步骤：

1. 导入turtle库：

   import turtle

2. 创建画布和画笔：

   screen = turtle.Screen()
   pen = turtle.Turtle()

3. 设置画笔的颜色和速度：

   pen.color("red")
   pen.speed(5)

4. 绘制红旗背景：

   pen.begin_fill()
   pen.goto(-300, 200)
   pen.forward(600)
   pen.right(90)
   pen.forward(400)
   pen.right(90)
   pen.forward(600)
   pen.right(90)
   pen.forward(400)
   pen.end_fill()

5. 绘制大五角星：

   pen.penup()
   pen.goto(-220, 120)
   pen.pendown()
   pen.begin_fill()
   for _ in range(5):
       pen.forward(80)
       pen.right(144)
   pen.end_fill()

6. 绘制四个小五角星：

   positions = [(-140, 160), (-100, 120), (-100, 60), (-140, 20)]
   for position in positions:
       pen.penup()
       pen.goto(position)
       pen.pendown()
       pen.begin_fill()
       for _ in range(5):
           pen.forward(30)
           pen.right(144)
       pen.end_fill()

7. 隐藏画笔并显示绘制结果：

   pen.hideturtle()
   turtle.done()

这样就完成了使用turtle库绘制五星红旗的过程。