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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