專案介紹

大家好呀，這是一份遲到的聖誕節Python專輯專案。
我們一起看看如何用Python做出超級炫酷的聖誕樹吧~

1.入門版本

height = 5
stars = 1
for i in range(height):
    print((' ' * (height - i)) + ('*' * stars))
    stars += 2
print((' ' * height) + '|')

2.進階版

import turtle
screen = turtle.Screen()
screen.setup(800,600)
circle = turtle.Turtle()
circle.shape('circle')
circle.color('red')
circle.speed('fastest')
circle.up()
square = turtle.Turtle()
square.shape('square')
square.color('green')
square.speed('fastest')
square.up()
circle.goto(0,280)
circle.stamp()
k = 0
for i in range(1, 17):
    y = 30*i
    for j in range(i-k):
        x = 30*j
        square.goto(x,-y+280)
        square.stamp()
        square.goto(-x,-y+280)
        square.stamp()
    if i % 4 == 0:
        x = 30*(j+1)
        circle.color('red')
        circle.goto(-x,-y+280)
        circle.stamp()
        circle.goto(x,-y+280)
        circle.stamp()
        k += 2
    if i % 4 == 3:
        x = 30*(j+1)
        circle.color('yellow')
        circle.goto(-x,-y+280)
        circle.stamp()
        circle.goto(x,-y+280)
        circle.stamp()
square.color('brown')
for i in range(17,20):
    y = 30*i
    for j in range(3):
        x = 30*j
        square.goto(x,-y+280)
        square.stamp()
        square.goto(-x,-y+280)
        square.stamp()
turtle.exitonclick()
 

3.高階版本

from turtle import *
import random
import time
n = 80.0
speed("fastest")
screensize(bg='seashell')
left(90)
forward(3*n)
color("orange", "yellow")
begin_fill()
left(126)
for i in range(5):
    forward(n/5)
    right(144)
    forward(n/5)
    left(72)
end_fill()
right(126)
color("dark green")
backward(n*4.8)
def tree(d, s):
    if d <= 0: return
    forward(s)
    tree(d-1, s*.8)
    right(120)
    tree(d-3, s*.5)
    right(120)
    tree(d-3, s*.5)
    right(120)
    backward(s)
tree(15, n)
backward(n/2)
for i in range(200):
    a = 200 - 400 * random.random()
    b = 10 - 20 * random.random()
    up()
    forward(b)
    left(90)
    forward(a)
    down()
    if random.randint(0, 1) == 0:
            color('tomato')
    else:
        color('wheat')
    circle(2)
    up()
    backward(a)
    right(90)
    backward(b)
time.sleep(60)
 

gif:

4.炫酷版本

import os
import sys
import platform
import random
import time
import numpy as np
class UI(object):
    def __init__(self):
        os_name = platform.uname()[0]
        self.IS_WIN = os_name == 'Windows'
        self.IS_MAC = os_name == 'Darwin'
        if self.IS_WIN:
            self.RED = 0x0C
            self.GREY = 0x07
            self.BLUE = 0x09
            self.CYAN = 0x0B
            self.LINK = 0x30
            self.BLACK = 0x0
            self.GREEN = 0x0A
            self.WHITE = 0x0F
            self.PURPLE = 0x0D
            self.YELLOW = 0x0E
        else:
            self.RED = '\033[1;31m'
            self.GREY = '\033[38m'
            self.BLUE = '\033[1;34m'
            self.CYAN = '\033[36m'
            self.LINK = '\033[0;36;4m'
            self.BLACK = '\033[0m'
            self.GREEN = '\033[32m'
            self.WHITE = '\033[37m'
            self.PURPLE = '\033[35m'
            self.YELLOW = '\033[33m'
        self.p = self.win_print if self.IS_WIN else self.os_print
    def clear(self):
        os.system('cls' if self.IS_WIN else 'clear')
        return self
    def win_reset(self, color):
        from ctypes import windll
        handler = windll.kernel32.GetStdHandle(-11)
        return windll.kernel32.SetConsoleTextAttribute(handler, color)
    def win_print(self, msg, color, enter=True):
        color = color or self.BLACK
        self.win_reset(color | color | color)
        sys.stdout.write(('%s\n' if enter else '%s') % msg)
        self.win_reset(self.RED | self.GREEN | self.BLUE)
        return self
    def os_print(self, msg, color, enter=True):
        color = color or self.BLACK
        sys.stdout.write(
            ('%s%s%s\n' if enter else '%s%s%s') % (color, msg, self.BLACK))
        return self
def tree(ui, level=3):
    a = [i for i in range(0, (level + 1) * 4, 2)]
    b = a[0:2]
    for i in range(2, len(a) - 2, 2):
        b.append(a[i])
        b.append(a[i + 1])
        b.append(a[i])
        b.append(a[i + 1])
    b.append(a[-2])
    b.append(a[-1])
    light = True
    while True:
        ui.clear()
        ui.p(u'\t聖誕節快樂!\n\t\t\t覃秉豐 2018', ui.RED)
        print
        light = not light
        lamp(ui, b, light)
        for i in range(2, len(b)):
            ui.p(
                '%s/' % (' ' * b[len(b) - i - 1]), ui.GREEN, enter=False)
            neon(ui, 2 * b[i] + 1)
            ui.p('\\', ui.GREEN, enter=True)
        time.sleep(0.2)
def neon(ui, space_len):
    colors = [ui.RED, ui.GREY, ui.BLUE, ui.CYAN, ui.YELLOW]
    for i in range(space_len):
        if random.randint(0, 16) == 5:
            ui.p('o', colors[random.randint(0, len(colors) - 1)], enter=False)
        else:
            ui.p(' ', ui.RED, enter=False)
def lamp(ui, tree_arr, light):
    colors = [ui.WHITE, ui.BLUE]
    if not light:
        colors.reverse()
    ui.p(' ' * (tree_arr[-1] + 1), ui.BLACK, enter=False)
    ui.p('|', colors[1])
    ui.p(' ' * tree_arr[-1], ui.BLACK, enter=False)
    ui.p('\\', colors[1], enter=False)

    ui.p('|', colors[0], enter=False)

    ui.p('/', colors[1])
    ui.p(' ' * tree_arr[-2], ui.BLACK, enter=False)
    ui.p('-', colors[0], enter=False)
    ui.p('-', colors[1], enter=False)
    ui.p('=', colors[0], enter=False)
    ui.p('O', colors[1], enter=False)
    ui.p('=', colors[0], enter=False)
    ui.p('-', colors[1], enter=False)
    ui.p('-', colors[0], enter=True)
    ui.p(' ' * tree_arr[-1], ui.BLACK, enter=False)
    ui.p('/', colors[1], enter=False)
    ui.p('|', colors[0], enter=False)
    ui.p('\\', colors[1])
    ui.p(' ' * tree_arr[-2], ui.BLACK, enter=False)
    ui.p('/  ', ui.GREEN, enter=False)
    ui.p('|', colors[1], enter=False)
    ui.p('  \\', ui.GREEN, enter=True)
def main():
    ui = UI()
    max_rows = 4
    tree(ui, max_rows)
if __name__ == '__main__':
    main()
 

在命令列執行可以看到動態效果：

作者介紹