# 绘画
# 中国国旗
# 转载请标明出处！！


import turtle
import time


def draw__stars(tur, step, x, y, arg):
 """
 绘制五角星
 :param tur: turtle object
 :param step: 五角星一条边的长度
 :param x: 开始绘制五角星的起点x坐标
 :param y: 开始绘制五角星的起点y坐标
 :param arg:
 :return:
 """
 tur.pencolor('yellow')
 tur.fillcolor('yellow')
 tur.up()
 tur.goto(x, y)
 tur.begin_fill()
 tur.down()
 tur.right(arg)
 tur.forward(step)
 tur.right(144)
 tur.forward(step)
 tur.right(144)
 tur.forward(step)
 tur.right(144)
 tur.forward(step)
 tur.right(144)
 tur.forward(step)
 tur.right(144)
 tur.end_fill()


def draw__flag(tur, wide, height):
 """
 绘制国旗的长方形形状
 :param tur: turtle object
 :param wide: the width of the flag
 :param height: the height of the flag
 :return: None
 """
 tur.pencolor('red')
 tur.fillcolor('red')
 tur.goto(- wide / 2, height / 2)
 tur.begin_fill()
 tur.forward(wide)
 tur.right(90)
 tur.forward(height)
 tur.right(90)
 tur.forward(wide)
 tur.right(90)
 tur.forward(height)
 tur.end_fill()


if __name__ == '__main__':
 """
 main 函数
 """
 # tur = turtle.Turtle()
 turtle.screensize(canvwidth=3000, canvheight=2000, bg=None)
 # 绘制star的turtle对象
 tur_star = turtle.Turtle()
 # 绘制flag的turtle对象
 tur_flag = turtle.Turtle()
 tur_flag.speed(3)
 tur_star.speed(3)
 # 隐藏turtle对象
 tur_star.hideturtle()
 tur_flag.hideturtle()
 # 间隔3秒，可以没有，这个是我调试时加上去的
 time.sleep(3)
 # 绘制长方形
 draw__flag(tur_flag, 630, 420)
 # 绘制五角星，在合适的位置进行绘制五角星
 # 调用五次函数绘制五颗五角星
 draw__stars(tur_star, step=60, x=-280, y=155, arg=0)
 draw__stars(tur_star, step=25, x=-182, y=177, arg=- 25)
 draw__stars(tur_star, step=25, x=-175, y=125, arg=41)
 draw__stars(tur_star, step=25, x=-208, y=79, arg=23)
 draw__stars(tur_star, step=25, x=-265, y=75, arg=48)
 # 使画面锁定
 turtle.done()