烟花代码编程python

烟花代码是一种基于 Python 编写的模拟烟花爆炸的程序，可以用来进行图形化的烟花效果展示。

具体的 Python 代码如下：

import random
import turtle

# 定义画布
canvas = turtle.Screen()
canvas.bgcolor("black")
canvas.title("Fireworks")

# 定义烟花粒子
class Particle(turtle.Turtle):
    def __init__(self, x, y, color):
        turtle.Turtle.__init__(self)
        self.penup()
        self.speed(0)
        self.color(color)
        self.goto(x, y)
        self.particles = []
        self.life = 20

    def move(self):
        self.life -= 1
        if self.life <= 0:
            self.delete()
        self.dy -= 0.2
        self.goto(self.xcor() + self.dx, self.ycor() + self.dy)
        if self.xcor() < -250 or self.xcor() > 250:
            self.dx *= -1
        if self.ycor() < -250:
            self.dy *= -0.8
            self.dx *= 0.9
            self.sety(-250)
        self.dy -= 0.2

    def delete(self):
        self.goto(1000, 1000)
        self.particles.remove(self)

# 定义烟花
class Firework():
    def __init__(self):
        self.particles = []
        self.color = ("red", "blue", "yellow", "white")[random.randint(0, 3)]
        for i in range(50):
            particle = Particle(0, -250, self.color)
            particle.penup()
            particle.speed(0)
            particle.goto(0, -250)
            particle.dy = random.randint(10, 30)
            particle.dx = random.randint(-10, 10)
            self.particles.append(particle)

    def explode(self):
        for particle in self.particles:
            particle.dy += random.randint(0, 20)
            particle.dx += random.randint(-10, 10)
            particle.life = random.randint(10, 40)
            particle.particles = self.particles
            particle.move()

# 定义主函数
def main():
    fireworks = []
    while True:
        if random.randint(0, 5) == 0:
            fireworks.append(Firework())
        for firework in fireworks:
            firework.explode()
            if not firework.particles:
                fireworks.remove(firework)
        turtle.update()

if __name__ == '__main__':
    main()

运行上述代码后，即可在画布中展示出烟花效果。