import matplotlib.pyplot as plt
import numpy as np#导入需要的包
data=np.random.multivariate_normal([0,1],[[1,0],[0,1]],200)#准备数据，二维正态分布plt.rcParams["axes.unicode_minus"]=False#正确显示负号
fig=plt.figure(figsize=(8,8))
ax=fig.add_subplot(111)
ss=20*data[:,0]**2+20*data[:,1]**2
ax.scatter(data[:,0],data[:,1],c=data[:,0]**2+data[:,1]**2,s=ss,alpha=0.7,cmap="magma")#散点图ax.grid(linewidth=0.5,color="black",alpha=0.1)
ax.set_axisbelow(True)#plt.show()