用python的turtle库画一个中国国旗

以下是使用Python的turtle库绘制中国国旗的代码：

import turtle

def draw_rectangle(x, y, width, height):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()
    turtle.begin_fill()
    for _ in range(2):
        turtle.forward(width)
        turtle.right(90)
        turtle.forward(height)
        turtle.right(90)
    turtle.end_fill()

def draw_star(x, y, radius):
    turtle.penup()
    turtle.goto(x, y)
    turtle.setheading(162)
    turtle.forward(radius)
    turtle.setheading(0)
    turtle.pendown()
    turtle.begin_fill()
    while True:
        turtle.forward(2 * radius * 0.382)
        turtle.right(144)
        if abs(turtle.pos() - (x, y)) < 1:
            break
    turtle.end_fill()

def draw_flag():
    turtle.speed(3)
    turtle.penup()
    turtle.goto(-250, 150)
    turtle.pendown()
    turtle.color("red")
    turtle.begin_fill()
    turtle.goto(-250, -150)
    turtle.goto(250, -150)
    turtle.goto(250, 150)
    turtle.goto(-250, 150)
    turtle.end_fill()

    turtle.color("yellow")
    positions = [(-180, 60), (-120, 0), (-180, -60)]
    for position in positions:
        draw_star(*position, 30)

    turtle.hideturtle()

if __name__ == "__main__":
    draw_flag()
    turtle.done()

运行以上代码，会绘制一个中国国旗。其中，draw_rectangle函数用于绘制矩形，draw_star函数用于绘制五角星，draw_flag函数用于绘制完整的国旗