Merry Christmas 圣诞树html+css+js，c++，python实现
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html+css+js
repo：https://github.com/anvaka/atree
The tree is built of two spirals. These 11 lines of code render one line on spiral. It includes 3d projection and background shadow. Almost the same as this wiki image:
·
充分诠释数学的简洁之美。
repo：https://github.com/hakimel/DOM-Tree
C++
编译命令
g++-9 -O2 tree.cpp -std=c++17 -pthread && ./a.out xtree.txt
# g++-7已经启用，改为g++-9
sudo apt-get install g++-9
// Copyright (c) 2018 Antony Polukhin.
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// TODO:
// * clean up the mess in code
// * clean up after the cleanup
// * add falling snow or glowing stars
// * more modes for lamps
#include python
在终端运行：
python terminal_tree.py
import argparse
import os
import random
import time
BALL = '⏺'
COLOR = {
'blue': '\033[94m',
'yellow': '\033[93m',
'cyan': '\033[96m',
'green': '\033[92m',
'magenta': '\033[95m',
'white': '\033[97m',
'red': '\033[91m'
}
STAR = '★'
def random_change_char(string, value):
indexes = random.sample(range(0, len(string)), value)
string = list(string)
for idx in indexes:
if string[idx] != ' ' and string[idx] == '_':
string[idx] = BALL
return ''.join(string)
def tree(height=13, screen_width=80):
star = (STAR, 3*STAR)
if height % 2 != 0:
height += 1
body = ['/_\\', '/_\_\\']
trunk = '[___]'
begin = '/'
end = '\\'
pattern = '_/'
j = 5
for i in range(7, height + 1, 2):
middle = pattern + (i - j) * pattern
line = ''.join([begin, middle[:-1], end])
body.append(line)
middle = middle.replace('/', '\\')
line = ''.join([begin, middle[:-1], end])
body.append(line)
j += 1
return [line.center(screen_width) for line in (*star, *body, trunk)]
def balls(tree):
for idx, _ in enumerate(tree[:-3], 2):
tree[idx] = random_change_char(tree[idx], len(tree[idx])//8)
return tree
def colored_stars_balls(tree):
for idx, _ in enumerate(tree):
string = list(tree[idx])
for pos, _ in enumerate(string):
if string[pos] == STAR:
string[pos] = ''.join([COLOR['yellow'], STAR, '\033[0m'])
elif string[pos] == BALL:
string[pos] = ''.join([random.choice(list(COLOR.values())), BALL, '\033[0m'])
tree[idx] = ''.join(string)
return tree
def cli():
parser = argparse.ArgumentParser(prog="Python Christmas Tree by Chico Lucio from Ciencia Programada",
epilog="Ctrl-C interrupts the Christmas :-(")
parser.add_argument('-s', '--size', default=13, type=int,
help="Tree height. If even it will be subtracted 1. If less than 7, considered 5. Default: 13")
parser.add_argument('-w', '--width', default=80, type=int,
help="Screen width. Used to center the tree. Default: 80")
parser.add_argument('-t', '--terminal', action='store_true',
help="Uses the terminal size to center the tree. -s and -w will be ignored")
args = parser.parse_args()
if args.terminal:
screen_width, height = os.get_terminal_size()
height -= 2
else:
height = args.size
screen_width = args.width
while True:
try:
time.sleep(random.uniform(.1, 1))
os.system('cls' if os.name == 'nt' else 'clear')
print('\n'.join(colored_stars_balls(balls(tree(height, screen_width)))))
except KeyboardInterrupt:
os.system('cls' if os.name == 'nt' else 'clear')
print(f"\n{'Merry Christmas!!':^{screen_width}}", end='\n\n')
break
if __name__ == '__main__':
cli()