源代码如下（遇上篇烟花代码几乎一样，参数值稍微不一样）：
# -*- coding: utf-8 -*-
# Nola import tkinter as tk
from PIL import Image, ImageTk
from time import time, sleep
from random import choice, uniform,randint
from math import sin, cos, radians # # 初始化tkinter 创建根部件 必须在创建其他部件之前创建 且只有一个
# root = tk.Tk()
# # Label部件
# w = tk.Label(root, text="Hello Tkinter!")
# # pack告诉tkinter调整窗口大小适应所用的小部件
# w.pack()
# root.mainloop()
# 模拟重力
GRAVITY = 0.05
colors = ['red', 'blue', 'pink', 'white', 'green', 'orange', 'purple', 'seagreen', 'indigo', 'cornflowerblue'] class Part(object):
"""
particles 类
粒子在空中随机生成，变成一个圈，下坠，消失
"""
def __init__(self, cv, idx, total, explosion_speed, x=0., y=0., vx=0., vy=0., size=2., color='red', lifespan=2, **kwargs):
"""
:param cv: 画布
:param idx: 粒子的id
:param total: 总数
:param explosion_speed: 粒子初始速度
:param x: 粒子的横坐标
:param y: 粒子的纵坐标
:param vx: 粒子在x轴上的变化速度
:param vy: 粒子在y轴上的变化速度
:param size: 大小
:param color: 颜色
:param lifespan: 最高存在时长
:param kwargs:
"""
self.id = idx
self.x = x
self.y = y
self.initial_speed = explosion_speed
self.vx = vx
self.vy = vy
self.total = total
self.age = 0
self.color = color
self.cv = cv
self.cid = self.cv.create_oval(
x - size, y - size, x + size,
y + size, fill=self.color
)
self.lifespan = lifespan def update(self, dt):
"""
粒子运动函数，膨胀
:param dt:
:return:
"""
self.age += dt
if self.alive() and self.expand():
move_x = cos(radians(self.id*360 / self.total)) * self.initial_speed
move_y = sin(radians(self.id*360 / self.total)) * self.initial_speed
# self.vy = move_y / (float(dt)*1000)
self.cv.move(self.cid, move_x, move_y)
self.vx = move_x / (float(dt) * 1000) # 以*落体坠落
elif self.alive():
move_x = cos(radians(self.id*360 / self.total))
self.cv.move(self.cid, self.vx + move_x, self.vy + GRAVITY*dt)
self.vy += GRAVITY * dt # 移除超过最高时长的粒子
elif self.cid is not None:
self.cv.delete(self.cid)
self.cid = None def alive(self):
"""
检查粒子是否在最高存在时长内
:return: bool
"""
return self.age <= 1.2 def expand(self):
"""
定义膨胀效果时间帧
:return: bool
"""
return self.age <= self.lifespan def simulate(cv):
"""
循环调用保持不停
:param cv: 画布
:return:
"""
numb_explode = randint(6, 10)
wait_time = randint(10, 100)
explode_points = []
t = time()
# 为所有模拟烟花绽放的全部粒子创建一个列表
for point in range(numb_explode):
objects = []
x_cordi = randint(50, 550)
y_cordi = randint(50, 150)
speed = uniform(0.5, 1.5)
size = uniform(1, 3) # 随机生成一个0.5-3之间的实数
color = choice(colors)
explosion_speed = uniform(0.2, 1)
total_particals = randint(5, 50)
for i in range(1, total_particals):
r = Part(cv, idx=1, total=total_particals, explosion_speed=explosion_speed, x=x_cordi, y=y_cordi,
vx=speed, vy=speed ,color=color, size=size, lifespan=uniform(0.6,1.75))
objects.append(r)
explode_points.append(objects) # 设置每个粒子没0.01秒更新状态 生命周期1.8秒 1.6秒存活（1.2秒绽放，0.4秒坠落，0.2秒移除）
total_time = .0
# 在1.8秒时间帧内保持更新
while total_time < 1.8:
sleep(0.01)
tnew = time()
t, dt = tnew, tnew - t
for point in explode_points:
for item in point:
item.update(dt)
cv.update()
total_time += dt
# 循环调用
root.after(wait_time, simulate, cv) def close(*ignore):
"""
退出程序，关闭窗口
:param ignore:
:return:
"""
global root
root.quit() if __name__ == '__main__':
# 初始化tkinter 创建根部件
root = tk.Tk() cv = tk.Canvas(root, height=400, width=600)
# 绘制一个黑色背景
cv.create_rectangle(0, 0, 600, 600, fill='black')
# 使用背景图片
# image = Image.open('./image.png')
# photo = ImageTk.PhotoImage(image)
# cv.create_image(0, 0, image=photo, anchor='nw')
cv.pack() root.protocol('WM_DELETE_WINDOW', close)
# 1秒后开始条约simulate()
root.after(100, simulate, cv)
root.mainloop()