用python海龟绘制五星红旗(怎么用python海龟画五角星)
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
如何用海龟画图画一面五星红旗？
代码如下
import turtle as t
t.speed(10)
t.pensize(1)
t.fillcolor('red')
t.pencolor('black')
t.shape(name='classic')
t.tracer(True)
#旗布
print('1.旗布')
t.penup()
t.left(135)
t.fd(350)
t.right(135)
t.pendown()
t.begin_fill()
for i in range(2):
t.fd(500)
t.right(90)
t.fd(350)
t.right(90)
t.end_fill()
#就位
t.fd(417)
t.penup()
t.right(90)
t.fd(30)
t.left(18)
t.pendown()
#星1*大
print('2.大五角星')
t.fillcolor('yellow')
t.begin_fill()
for j in range(5):
t.fd(40)
t.left(72)
t.fd(40)
t.right(144)
t.end_fill()
#星2*小1
print('3.小五角星，一')
t.right(108)
t.penup()
t.fd(85)
t.left(90)
t.fd(10)
t.pendown()
t.left(18)
t.begin_fill()
for j in range(5):
t.fd(10)
t.left(72)
t.fd(10)
t.right(144)
t.end_fill()
t.right(18)
#星3*小2
print('4.小五角星，二')
t.penup()
t.fd(50)
t.left(90)
t.fd(10)
t.right(90)
t.pendown()
t.left(18)
t.begin_fill()
for j in range(5):
t.fd(10)
t.left(72)
t.fd(10)
t.right(144)
t.end_fill()
t.right(18)
#星4*小3
print('5.小五角星，三')
t.penup()
t.fd(50)
t.left(90)
t.fd(30) #左右位置
t.right(90)
t.pendown()
t.left(18)
t.begin_fill()
for j in range(5):
t.fd(10)
t.left(72)
t.fd(10)
t.right(144)
t.end_fill()
t.right(18)
#星5*小4
print('6.小五角星，四')
t.penup()
t.fd(15)
t.left(90)
t.fd(55) #左右位置
t.right(90)
t.pendown()
t.left(18)
t.begin_fill()
for j in range(5):
t.fd(10)
t.left(72)
t.fd(10)
t.right(144)
t.end_fill()
t.right(18)
t.shape(name='blank')
print('_行程结束_')
t.done()
如何用python的turtle画五角星
turtle.seth(angle):只改变海龟的行进方向（角度按逆时针），但不行进，angle为绝对度数
求一段python中用class方法绘制国旗的代码！记得不是常见的海龟做法！这个星期给我再加送财富点！
from?matplotlib?import?patches,?pyplot?as?plt
from?math?import?sin,?cos,?pi
fig?=?plt.figure(figsize=(6,?4))
ax?=?fig.add_subplot(111)
def?star(coord,?size,?rotate):
pts?=?[(size?*?sin(i?*?4?*?pi?/?5?+?rotate)?+?coord[0],?size?*?cos(i?*?4?*?pi?/?5?+?rotate)?+?coord[1])?for?i?in?range(5)]
return?patches.Polygon(pts,?fc='yellow',?ec='yellow')
ax.add_patch(patches.Rectangle([0,?-2],?3,?2,?fc='red',?ec='red'))
ax.add_patch(star((0.5,?-0.5),?0.3,?0.0))
ax.add_patch(star((1.0,?-0.2),?0.07,?0.3))
ax.add_patch(star((1.2,?-0.4),?0.07,?0.9))
ax.add_patch(star((1.2,?-0.7),?0.07,?0.0))
ax.add_patch(star((1.0,?-0.9),?0.07,?0.3))
ax.set_axis_off()
plt.axis('scaled')
plt.show()
import?turtle??
import?time??
import?os??
#??
def??draw_square(org_x,?org_y,?x,?y):??
????turtle.setpos(org_x,?org_y)??#?to?left?and?bottom?connor??
????turtle.color('red',?'red')??
????turtle.begin_fill()??
????turtle.fd(x)??
????turtle.lt(90)??
????turtle.fd(y)??
????turtle.lt(90)??
????turtle.fd(x)??
????#print(turtle.pos())??
????turtle.lt(90)??
????turtle.fd(y)??
????turtle.end_fill()??
??
def?draw_star(center_x,?center_y,?radius):??
????print(center_x,?center_y)??
????turtle.pencolor('black')??
????turtle.setpos(center_x,?center_y)??
????pt1?=?turtle.pos()??
????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')??
????turtle.begin_fill()??
????turtle.goto(pt3)??
????turtle.goto(pt1)??
????turtle.goto(pt4)??
????turtle.goto(pt2)??
????turtle.goto(pt5)??
????turtle.end_fill()??
print(turtle.pos())??
??
turtle.pu()??
draw_square(-320,?-260,?660,?440)??
star_part_x?=?-320??
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??
turtle.setpos(center_x,?center_y)??#?big?star?center??
turtle.lt(90)??
draw_star(star_part_x?+?star_part_s?*?5,?star_part_y?-?star_part_s?*?2,?star_part_s?*?3)??
??
#?draw?1st?small?star??
turtle.goto(star_part_x?+?star_part_s?*?10,?star_part_y?-?star_part_s?*?2)????#?go?to?1st?small?star?center??
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)??
??
#?draw?2nd?small?star??
turtle.goto(star_part_x?+?star_part_s?*?12,?star_part_y?-?star_part_s?*?4)????#?go?to?1st?small?star?center??
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)??
??
#?draw?3rd?small?star??
turtle.goto(star_part_x?+?star_part_s?*?12,?star_part_y?-?star_part_s?*?7)????#?go?to?1st?small?star?center??
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)??
??
#?draw?4th?small?star??
turtle.goto(star_part_x?+?star_part_s?*?10,?star_part_y?-?star_part_s?*?9)????#?go?to?1st?small?star?center??
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)??
os._exit(1)
两个版本，仅供参考