自学教程：教你用Python matplotlib库制作简单的动画

import matplotlib.animation as madef update(number):    pass# 每隔30毫秒,执行一次updatema.FuncAnimation(    mp.gcf(),   # 作用域当前窗体    update,     # 更新函数的函数名    interval=30 # 每隔30毫秒,执行一次update)  

"""简单动画1. 随机生成100个气泡.2. 每个气泡拥有四个属性: position, size, growth, color3. 把每个气泡绘制到窗口中.4. 开启动画,在update函数中更新每个气泡的属性并重新绘制"""import numpy as npimport matplotlib.pyplot as mpimport matplotlib.animation as man = 100balls = np.zeros(n, dtype=[		('position', float, 2), # 位置属性		('size', float, 1),     # 大小属性		('growth', float, 1),   # 生长速度		('color', float, 4)])   # 颜色属性# 初始化每个泡泡# uniform: 从0到1取随机数,填充n行2列的数组balls['position']=np.random.uniform(0,1,(n,2))balls['size']=np.random.uniform(50,70,n)balls['growth']=np.random.uniform(10,20,n)balls['color']=np.random.uniform(0,1,(n,4))# 绘制100个泡泡mp.figure('Bubble', facecolor='lightgray')mp.title('Bubble', fontsize=18)mp.xticks([])mp.yticks([])sc = mp.scatter(balls['position'][:,0], 	       balls['position'][:,1],	       balls['size'], 	       color=balls['color'])# 启动动画def update(number):	balls['size'] += balls['growth']	# 让某个泡泡破裂,从头开始执行	boom_i = number % n	balls[boom_i]['size'] = 60	balls[boom_i]['position']= /			np.random.uniform(0, 1, (1, 2))	# 重新设置属性	sc.set_sizes(balls['size'])	sc.set_offsets(balls['position'])anim = ma.FuncAnimation(	mp.gcf(), update, interval=30)mp.show()

"""模拟心电图"""import numpy as npimport matplotlib.pyplot as mpimport matplotlib.animation as mamp.figure('Signal', facecolor='lightgray')mp.title('Signal', fontsize=16)mp.xlim(0, 10)mp.ylim(-3, 3)mp.grid(linestyle=':')pl = mp.plot([],[], color='dodgerblue',		label='Signal')[0]# 启动动画def update(data):	t, v = data	x, y = pl.get_data()  #x y: ndarray数组	x = np.append(x, t)	y = np.append(y, v)	# 重新绘制图像	pl.set_data(x, y)	# 移动坐标轴	if x[-1]>5:		mp.xlim(x[-1]-5, x[-1]+5)x = 0def generator():	global x	y = np.sin(2 * np.pi * x) * /		np.exp(np.sin(0.2 * np.pi * x))	yield (x, y)	x += 0.05anim = ma.FuncAnimation(mp.gcf(), 	update, generator, interval=30)mp.show()