怎么用Python画国家的国旗

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五星红旗

五星红旗是中华人民共和国的国旗，它是由四颗小的黄五角星环绕一颗大的黄五角星组成的，底色为红色，实现代码如下：

turtle.setup(600,400,0,0)turtle.bgcolor("red")turtle.fillcolor("yellow")turtle.color('yellow')turtle.speed(10)# 主星turtle.begin_fill()turtle.up()turtle.goto(-280,100)turtle.down()for i in range (5):    turtle.forward(150)    turtle.right(144)turtle.end_fill()# 副星turtle.begin_fill()turtle.up()turtle.goto(-100,180)turtle.setheading(305)turtle.down()for i in range (5):    turtle.forward(50)    turtle.left(144)turtle.end_fill()turtle.begin_fill()turtle.up()turtle.goto(-50,110)turtle.setheading(30)turtle.down()for i in range (5):    turtle.forward(50)    turtle.right(144)turtle.end_fill()turtle.begin_fill()turtle.up()turtle.goto(-40,50)turtle.setheading(5)turtle.down()for i in range (5):    turtle.forward(50)    turtle.right(144)turtle.end_fill()turtle.begin_fill()turtle.up()turtle.goto(-100,10)turtle.setheading(300)turtle.down()for i in range (5):    turtle.forward(50)    turtle.left(144)turtle.end_fill()turtle.hideturtle()turtle.done()

青天白日旗

青天白日旗是民国时期的国旗，旗面作蓝色以示青天，旗中置一射出叉光的白日图案，实现代码如下：

t.colormode(255)rcblue=(4,0,174)rcred=(254,0,0)def ol(r):    na = 15 / 180 * math.pi    ol=2*r*math.cos(na)    ol=int(round(ol))    return oldef loop(r):    t.fd(ol(r))    t.right(150)def main0(a,b):    t.color(rcred)    t.penup()    t.goto(-a/2,b/2)    t.pendown()    t.begin_fill()    t.goto(-a/2,-b/2)    t.goto(a/2,-b/2)    t.goto(a/2,b/2)    t.end_fill()    t.penup()    t.goto(-a/4,b/4)    t.pendown()def main1(a1,b1):    t.color('gray',rcblue)    t.penup()    t.right(90)    t.fd(b1/2)    t.left(90)    t.pendown()    t.begin_fill()    t.fd(a1/2)    t.left(90)    t.fd(b1)    t.left(90)    t.fd(a1)    t.left(90)    t.fd(b1)    t.left(90)    t.fd(a1/2)    t.end_fill()    t.penup()    t.goto(-a/4,b/4)    t.seth(0)    t.pendown()def main2(r):    t.pensize = 20    t.color('white', 'white')    t.penup()    t.fd(r)    t.right(180 - 30 / 2)    t.pendown()    t.begin_fill()    for i in range(12):        loop(r)    t.end_fill()    t.penup()    t.goto(-a/4,b/4)    t.seth(0)    t.pendown()def main3(r1,r2):    t.color(rcblue, rcblue)      t.begin_fill()    t.up()    t.right(90)    t.fd(r1)    t.left(90)    t.pd()    t.circle(r1)    t.end_fill()    t.penup()    t.goto(-a/4,b/4)    t.pendown()    t.color('white', 'white')    t.begin_fill()    t.pu()    t.right(90)    t.fd(r2)    t.left(90)    t.pd()    t.circle(r2)    t.end_fill()    t.penup()    t.goto(-a/4,b/4)    t.seth(0)    t.pendown()def main(a,b):    a1 = a / 2    b1 = b / 2    r = a1 / 4    r2 = a1 / 8    r1 = b1 * 17 / 80    main0(a,b)    main1(a1,b1)    main2(r)    main3(r1,r2)a=1020b=680t.setup(1100,700,100,0)

红底白十字旗

红底白十字旗是瑞士的国旗，与其他国家有点不同，瑞士的国旗形状是正方形的，代表了该国坚守中立的政策，实现代码如下：

def draw_crossshaped(aTurtle, width=0, height=0, color=None):    aTurtle = turtle.Turtle()    aTurtle.hideturtle()    aTurtle.penup()    aTurtle.goto(30, 50)    aTurtle.begin_fill()    aTurtle.fillcolor(color)    for i in range(4):        aTurtle.pendown()        aTurtle.fd(width)        aTurtle.rt(90)        aTurtle.fd(height)        aTurtle.rt(90)        aTurtle.fd(width)        aTurtle.lt(90)    aTurtle.end_fill()def draw_RQ(times=20.0):    width, height = 26 * times, 26 * times    window = turtle.Screen()    aTurtle = turtle.Turtle()    aTurtle.hideturtle()    aTurtle.speed(10)    aTurtle.penup()    aTurtle.goto(-width / 2, height / 2)    aTurtle.pendown()    aTurtle.begin_fill()    aTurtle.fillcolor('red')    aTurtle.fd(width)    aTurtle.right(90)    aTurtle.fd(height)    aTurtle.right(90)    aTurtle.fd(width)    aTurtle.right(90)    aTurtle.fd(height)    aTurtle.right(90)    aTurtle.end_fill()    draw_crossshaped(aTurtle, width=80, height=80, color='white')    window.exitonclick()

星条旗

星条旗是美国的国旗，由两部分组成，旗的左上方蓝底上排列着 50 颗白色的星，其余部分是 13 道红白相间的条子，实现代码如下：

# 画条纹def drawSquar():    turtle.color('black', 'red')    turtle.begin_fill()    for i in range(7):        turtle.forward(600)        turtle.left(90)        turtle.forward(350 / 13)        turtle.left(90)        turtle.forward(600)        turtle.right(90)        turtle.forward(350 / 13)        turtle.right(90)    turtle.end_fill()# 画左上角的小矩形def drawSmallsqure():    turtle.color('blue')    turtle.begin_fill()    turtle.left(90)    turtle.forward(350 / 2)    turtle.left(90)    turtle.forward(300)    turtle.left(90)    turtle.forward(350 * 7 / 13)    turtle.left(90)    turtle.forward(300)    turtle.end_fill()# 画左上角的星星def drawSrarts():    x = -10    y = 0    for k in range(4):        x = -15        for i in range(6):            turtle.goto(x, y)            turtle.color('white')            turtle.begin_fill()            for j in range(5):                turtle.left(144)                turtle.forward(20)            x -= 50            turtle.end_fill()        y += 350 / 13 * 2    x = -10    y = 350 / 13    for i in range(3):        x = -35        for j in range(5):            turtle.goto(x, y)            turtle.color('white')            turtle.begin_fill()            for k in range(5):                turtle.left(144)                turtle.forward(20)            x -= 50            turtle.end_fill()        y += 350 / 13 * 2turtle.setup(0.8, 0.8, -100, -100)turtle.speed(10)turtle.pu()turtle.forward(300)turtle.left(90)turtle.forward(350 / 2)turtle.left(90)drawSquar()turtle.home()drawSmallsqure()turtle.home()drawSrarts()turtle.hideturtle()turtle.done()

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