Numpy函数介绍（1）————np.meshgrid

import numpy as np
import matplotlib.pyplot as plt

a1,a2 = np.meshgrid(np.arange(0,5,0.2),np.arange(0,5,0.2))
a1 = a1.reshape(25*25,-1)
a2 = a2.reshape(25*25,-1)
plt.figure()
plt.scatter(a1,a2)
plt.show()
print()

![请添加图片描述](https://img-blog.csdnimg.cn/2814f32cc91b4487a44cbbf3988bdc7b.png
![请添加图片描述](https://img-blog.csdnimg.cn/2814f32cc91b4487a44cbbf3988bdc7b.png