怎么用Python畫加納國旗

#?python6.6

成都地區(qū)優(yōu)秀IDC服務(wù)器托管提供商(創(chuàng)新互聯(lián)建站).為客戶提供專業(yè)的資陽主機(jī)托管,四川各地服務(wù)器托管,資陽主機(jī)托管、多線服務(wù)器托管.托管咨詢專線：13518219792

import?turtle

def?test():

#?加納共和國國旗呈長方形，長與寬之比為3∶2。

#?自上而下由紅、黃、綠三個(gè)平行相等的橫長方形組成，黃色部分中間是一顆黑色五角星。

flag_h?=?300

flag_w?=?450

star_h?=?flag_h/3

turtle.pensize(2)

turtle.speed(5)

turtle.hideturtle()

def?draw_rectangle(color):

turtle.pencolor(color)

turtle.fillcolor(color)

turtle.pendown()

turtle.begin_fill()

turtle.forward(flag_w)

turtle.right(90)

turtle.forward(star_h)

turtle.right(90)

turtle.forward(flag_w)

turtle.right(90)

turtle.forward(star_h)

turtle.end_fill()

turtle.penup()

turtle.back(star_h)

turtle.right(90)

turtle.penup()

turtle.goto(-flag_w?/?2,?flag_h?/?2)

draw_rectangle("red")

draw_rectangle("yellow")

draw_rectangle("green")

#?五角星

turtle.penup()

turtle.goto(0,?star_h/2)

turtle.pencolor("black")

turtle.fillcolor("black")

turtle.right(90-18)

turtle.pendown()

turtle.begin_fill()

for?i?in?range(5):

turtle.forward(star_h)

turtle.right(180-36)

turtle.end_fill()

turtle.done()

if?__name__?==?"__main__":

test()

如何用Python畫澳大利亞國旗

把整個(gè)國旗換成直角坐標(biāo)系。

在Python中繪制標(biāo)準(zhǔn)國旗并不簡單，我們采用的方法在數(shù)學(xué)上稱為解析法。把整個(gè)國旗換成直角坐標(biāo)系，中心坐標(biāo)為（0，0）。每個(gè)小格邊長20，則國旗左上角坐標(biāo)為(-300，200)、國旗長600，高400。Turtle是小海龜繪圖庫，Math是數(shù)學(xué)庫，要用到里面的三角函數(shù)和反三角函數(shù)，以及圓周率pi值。

Python是一種解釋型、面向?qū)ο?、?dòng)態(tài)數(shù)據(jù)類型的高級(jí)程序設(shè)計(jì)語言。 Python于1989年底發(fā)明，第一個(gè)公開發(fā)行版發(fā)行于1991年。

急求！這是一個(gè)用python畫國旗的程序，請求大神解釋一下每一步是干嘛的

import turtle //導(dǎo)入模塊

import time

import os

def draw_square(org_x, org_y, x, y): //定義紅旗繪制函數(shù)

turtle.setpos(org_x, org_y) //定義畫筆初始位置

turtle.color('red', 'red') //顏色

turtle.begin_fill() //開始繪制

turtle.fd(x) //繪制偏轉(zhuǎn)方向和角度

turtle.lt(90)

turtle.fd(y)

turtle.lt(90)

turtle.fd(x)

turtle.lt(90)

turtle.fd(y)

turtle.end_fill() //繪制結(jié)束

def draw_star(center_x, center_y, radius): //定義星星繪制函數(shù)

print(center_x, center_y) //顯示位置

turtle.pencolor('black') //畫筆軌跡顏色

turtle.setpos(center_x, center_y) //中心點(diǎn)位置

pt1 = turtle.pos() //偏轉(zhuǎn)角度計(jì)算

turtle.circle(-radius, 360 / 5)

pt2 = turtle.pos()

turtle.circle(-radius, 360 / 5)

pt3 = turtle.pos()

turtle.circle(-radius, 360 / 5)

pt4 = turtle.pos()

turtle.circle(-radius, 360 / 5)

pt5 = turtle.pos()

turtle.color('yellow', 'yellow') //星星顏色

turtle.begin_fill() //開是繪制

turtle.goto(pt3)

turtle.goto(pt1)

turtle.goto(pt4)

turtle.goto(pt2)

turtle.goto(pt5)

turtle.end_fill() //繪制結(jié)束

print(turtle.pos())

turtle.pu() //隱藏畫筆軌跡

draw_square(-320, -260, 660, 440) //繪制紅旗

star_part_x = -320 //自定義星星大小等屬性

star_part_y = -260 + 440

star_part_s = 660 / 30

center_x, center_y = star_part_x + star_part_s * 5, star_part_y - star_part_s * 5 //計(jì)算星星中心點(diǎn)位置

turtle.setpos(center_x, center_y)

turtle.lt(90)

draw_star(star_part_x + star_part_s * 5, star_part_y - star_part_s * 2, star_part_s * 3) //繪制星星

turtle.goto(star_part_x + star_part_s * 10, star_part_y - star_part_s * 2) //同上

turtle.lt(round(turtle.towards(center_x, center_y)) - turtle.heading())

turtle.fd(star_part_s)

turtle.rt(90)

draw_star(turtle.xcor(), turtle.ycor(), star_part_s)

turtle.goto(star_part_x + star_part_s * 12, star_part_y - star_part_s * 4)

turtle.lt(round(turtle.towards(center_x, center_y)) - turtle.heading())

turtle.fd(star_part_s)

turtle.rt(90)

draw_star(turtle.xcor(), turtle.ycor(), star_part_s)

turtle.goto(star_part_x + star_part_s * 12, star_part_y - star_part_s * 7)

turtle.lt(round(turtle.towards(center_x, center_y)) - turtle.heading())

turtle.fd(star_part_s)

turtle.rt(90)

draw_star(turtle.xcor(), turtle.ycor(), star_part_s)

turtle.goto(star_part_x + star_part_s * 10, star_part_y - star_part_s * 9)

turtle.lt(round(turtle.towards(center_x, center_y)) - turtle.heading())

turtle.fd(star_part_s)

turtle.rt(90)

draw_star(turtle.xcor(), turtle.ycor(), star_part_s)

turtle.ht()

time.sleep(5) //設(shè)置掛起時(shí)間

os._exit(1)