本文实例讲述了python开发之thread实现布朗运动的方法。分享给大家供大家参考，具体如下：
这里我将给大家介绍有关python中thread来实现布朗运动的一个例子
下面是运行效果：
代码部分：
# brownian motion -- an example of a multi-threaded tkinter program.from tkinter import *import randomimport threadingimport timeimport sys#画布大小width = 400height = 300sigma = 10buzz = 2radius = 2lambda = 10fill = 'red'stop = 0 # set when main loop exitsdef particle(canvas): r = radius x = random.gauss(width/2.0, sigma) y = random.gauss(height/2.0, sigma) p = canvas.create_oval(x-r, y-r, x+r, y+r, fill=fill) while not stop: dx = random.gauss(0, buzz) dy = random.gauss(0, buzz) dt = random.expovariate(lambda) try: canvas.move(p, dx, dy) except tclerror: break time.sleep(dt)def main(): global stop root = tk() canvas = canvas(root, width=width, height=height) canvas.pack(fill='both', expand=1) #粒子数目 np = 30 if sys.argv[1:]: np = int(sys.argv[1]) for i in range(np): t = threading.thread(target=particle, args=(canvas,)) t.start() try: root.mainloop() finally: stop = 1main()
希望本文所述对大家python程序设计有所帮助。