python国旗函数 python编程画国旗代码

如何用python turtle画奥运五环

1 import turtle #导入turtle模块

2 turtle.color("blue") #定义颜色

3 turtle.penup() #penup和pendown()设置画笔抬起或放下时是否绘制直线

4 turtle.goto(-110,-25) #初始位置以中心坐标为(0,0)

5 turtle.pendown()

6 turtle.circle(45) #绘制圆的半径

7

8 turtle.color("black")

9 turtle.penup()

10 turtle.goto(0,-25)

11 turtle.pendown()

12 turtle.circle(45)

13

14 turtle.color("red")

15 turtle.penup()

16 turtle.goto(110,-25)

17 turtle.pendown()

18 turtle.circle(45)

19

20 turtle.color("yellow")

21 turtle.penup()

22 turtle.goto(-55,-75)

23 turtle.pendown()

24 turtle.circle(45)

25

26 turtle.color("green")

27 turtle.penup()

28 turtle.goto(55,-75)

29 turtle.pendown()

30 turtle.circle(45)

相关问答

Q1: 如何用Python画澳大利亚国旗

把整个国旗换成直角坐标系。

在Python中绘制标准国旗并不简单，我们采用的方法在数学上称为解析法。把整个国旗换成直角坐标系，中心坐标为（0，0）。每个小格边长20，则国旗左上角坐标为(-300，200)、国旗长600，高400。Turtle是小海龟绘图库，Math是数学库，要用到里面的三角函数和反三角函数，以及圆周率pi值。

Python是一种解释型、面向对象、动态数据类型的高级程序设计语言。 Python于1989年底发明，第一个公开发行版发行于1991年。

Q2: 请问一下网友老铁们 美国国旗用python怎么做呀 求其代码 谢谢拉

参考下五星红旗

code#!/usr/bin/env python

# -*- coding: utf-8 –*-

''' 对于turtle类的一些封装方法，包括画正多边形，正多角形和五星红旗。'''

__author__ = 'Hu Wenchao'

import turtle

import math

def draw_polygon(aTurtle, size=50, n=3):

''' 绘制正多边形

args:

aTurtle: turtle对象实例

size: int类型，正多边形的边长

n: int类型，是几边形

'''

for i in xrange(n):

aTurtle.forward(size)

aTurtle.left(360.0/n)

def draw_n_angle(aTurtle, size=50, num=5, color=None):

''' 绘制正n角形，默认为黄色

args:

aTurtle: turtle对象实例

size: int类型，正多角形的边长

n: int类型，是几角形

color: str， 图形颜色，默认不填色

'''

if color:

aTurtle.begin_fill()

aTurtle.fillcolor(color)

for i in xrange(num):

aTurtle.forward(size)

aTurtle.left(360.0/num)

aTurtle.forward(size)

aTurtle.right(2*360.0/num)

if color:

aTurtle.end_fill()

def draw_5_angle(aTurtle=None, start_pos=(0,0), end_pos=(0,10), radius=100, color=None):

''' 根据起始位置、结束位置和外接圆半径画五角星

args:

aTurtle: turtle对象实例

start_pos: int的二元tuple，要画的五角星的外接圆圆心

end_pos: int的二元tuple，圆心指向的位置坐标点

radius: 五角星外接圆半径

color: str， 图形颜色，默认不填色

'''

aTurtle = aTurtle or turtle.Turtle()

size = radius * math.sin(math.pi/5)/math.sin(math.pi*2/5)

aTurtle.left(math.degrees(math.atan2(end_pos[1]-start_pos[1], end_pos[0]-start_pos[0])))

aTurtle.penup()

aTurtle.goto(start_pos)

aTurtle.fd(radius)

aTurtle.pendown()

aTurtle.right(math.degrees(math.pi*9/10))

draw_n_angle(aTurtle, size, 5, color)

def draw_5_star_flag(times=20.0):

''' 绘制五星红旗

args:

times: 五星红旗的规格为30*20， times为倍数，默认大小为10倍， 即300*200

'''

width, height = 30*times, 20*times

# 初始化屏幕和海龟

window = turtle.Screen()

aTurtle = turtle.Turtle()

aTurtle.hideturtle()

aTurtle.speed(10)

# 画红旗

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()

# 画大星星

draw_5_angle(aTurtle, start_pos=(-10*times, 5*times), end_pos=(-10*times, 8*times), radius=3*times, color='yellow')

# 画四个小星星

stars_start_pos = [(-5, 8), (-3, 6), (-3, 3), (-5, 1)]

for pos in stars_start_pos:

draw_5_angle(aTurtle, start_pos=(pos[0]*times, pos[1]*times), end_pos=(-10*times, 5*times), radius=1*times, color='yellow')

# 点击关闭窗口

window.exitonclick()

if __name__ == '__main__':

draw_5_star_flag()

/code

Q3: 急求！这是一个用python画国旗的程序，请求大神解释一下每一步是干嘛的

import turtle //导入模块

import time

import os

def draw_square(org_x, org_y, x, y): //定义红旗绘制函数

turtle.setpos(org_x, org_y) //定义画笔初始位置

turtle.color('red', 'red') //颜色

turtle.begin_fill() //开始绘制

turtle.fd(x) //绘制偏转方向和角度

turtle.lt(90)

turtle.fd(y)

turtle.lt(90)

turtle.fd(x)

turtle.lt(90)

turtle.fd(y)

turtle.end_fill() //绘制结束

def draw_star(center_x, center_y, radius): //定义星星绘制函数

print(center_x, center_y) //显示位置

turtle.pencolor('black') //画笔轨迹颜色

turtle.setpos(center_x, center_y) //中心点位置

pt1 = turtle.pos() //偏转角度计算

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') //星星颜色

turtle.begin_fill() //开是绘制

turtle.goto(pt3)

turtle.goto(pt1)

turtle.goto(pt4)

turtle.goto(pt2)

turtle.goto(pt5)

turtle.end_fill() //绘制结束

print(turtle.pos())

turtle.pu() //隐藏画笔轨迹

draw_square(-320, -260, 660, 440) //绘制红旗

star_part_x = -320 //自定义星星大小等属性

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 //计算星星中心点位置

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) //绘制星星

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) //设置挂起时间

os._exit(1)

Q4: 怎么用Python画加纳国旗

# python6.6

import turtle

def test():

    # 加纳共和国国旗呈长方形，长与宽之比为3∶2。

    # 自上而下由红、黄、绿三个平行相等的横长方形组成，黄色部分中间是一颗黑色五角星。

    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()

Q5: 如何用Python绘画日本国旗

使用Python自己的绘图工具即可，turtle。

# encoding:utf-8

# python3.6

import turtle

def draw_japan_flag():

    # 日本国旗为“太阳旗”，呈长方形，长与宽之比为3∶2。 旗面为白色，正中有一轮红日。

    # 红日半径

    r = 150

    # 画布尺寸（宽，高）

    turtle.screensize(900, 600)

    # 设置显示窗口像素

    turtle.setup(width=900, height=600)

    # 移动画笔起点

    turtle.penup()

    turtle.goto(0, -r)

    turtle.pendown()

    # 设置画笔属性

    turtle.pensize(5)

    turtle.pencolor("red")

    turtle.fillcolor("red")

    # 绘制速度，1~10个不同速度等级，小于1或者大于10立即绘制

    turtle.speed(0)

    # 开始绘制红日

    turtle.begin_fill()

    turtle.circle(r)

    turtle.end_fill()

    turtle.mainloop()

    

   

if __name__ == "__main__":

    draw_japan_flag()