用Python绘制青天白日旗和青天白日满地红旗，,青天白日旗:impo

用Python绘制青天白日旗和青天白日满地红旗，,青天白日旗:impo

青天白日旗:

import turtle as timport matht.colormode(255)rcblue=(4,0,174)def ol(r,n):    na = 15 / 180 * math.pi    ol=2*r*math.cos(na)    ol=int(round(ol))    return oldef loop(r,n):    t.fd(ol(r,n))    t.right(150)def main1(a,b):    t.color(‘gray‘,rcblue)    t.penup()    t.right(90)    t.fd(b/2)    t.left(90)    t.pendown()    t.begin_fill()    t.fd(a/2)    t.left(90)    t.fd(b)    t.left(90)    t.fd(a)    t.left(90)    t.fd(b)    t.left(90)    t.fd(a/2)    t.end_fill()    t.penup()    t.goto(0,0)    t.seth(0)    t.pendown()def main2(r,n):    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,n)    t.end_fill()    t.penup()    t.goto(0,0)    t.seth(0)    t.pendown()def main3(r1,r2):    t.color(rcblue, rcblue)  # t.color(),not t.pencolor()    t.begin_fill()    t.up()    t.right(90)    t.fd(r1)    t.left(90)    t.pd()    t.circle(r1)    t.goto(0, 0)    t.end_fill()    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(0, 0)    t.seth(0)    t.pendown()def main():    r=a/4    n=8    r2=a/8    r1=b*17/80    main1(a,b)    main2(r,n)    main3(r1,r2)a=1020b=680t.setup(1000,700,100,0)main()t.done()

旗图:

青天白日满地红旗的核心还是绘制青天白日旗,需要注意坐标:

import turtle as timport matht.colormode(255)rcblue=(4,0,174)rcred=(254,0,0)def ol(r,n):    na = 15 / 180 * math.pi    ol=2*r*math.cos(na)    ol=int(round(ol))    return oldef loop(r,n):    t.fd(ol(r,n))    t.right(150)def main0(a,b):  #没有循环和复杂角度操作的时候用goto比较快    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,n):    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,n)    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.color(),not t.pencolor()    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    n = 8    r2 = a1 / 8    r1 = b1 * 17 / 80    main0(a,b)    main1(a1,b1)    main2(r,n)    main3(r1,r2)a=1020b=680t.setup(1100,700,100,0)main(a,b)t.done()

旗图:

用Python绘制青天白日旗和青天白日满地红旗