hexchain

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<!-- /etc/fonts/conf.avail/51-noto-color-emoji.conf -->
<fontconfig>
    <selectfont>
        <acceptfont>
            <pattern>
                <patelt name="family"><string>Noto Color Emoji</string></patelt>
            </pattern>
        </acceptfont>

cryptowen

#!/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