# 动态matplotlib图像

matplotlib有个官方教程提供多种方式的动态图像展示：[animation](https://matplotlib.org/gallery/index.html#animation)；

这里[官方API](https://matplotlib.org/gallery/animation/animation_demo.html#sphx-glr-gallery-animation-animation-demo-py)的例子，就是不断的清除图像画布，然后不断的重画，个人感觉这种方式简单粗暴好用，因此简单的展示用这个就好了，这里给出了一个常见的绘制散点图的动态例子：

```python
import numpy as np
import matplotlib.pyplot as plt


def draw_func():
    # 需要绘制的图形
    X = np.random.rand(100)
    Y = np.random.rand(100)
    plt.scatter(X, Y)


# 调用，不需要plt.show()
for _ in range(100000):
    plt.cla()#清除
    draw_func()#绘制
    plt.pause(0.001)#显示间隔0.001s
```


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