增强等值线图

import matplotlib.pyplot as plt
import numpy as np
dx = 0.01; dy = 0.01
x = np.arange(-2.0,2.0,dx)
y = np.arange(-2.0,2.0,dy)
X,Y = np.meshgrid(x,y)
#def f(x,y):
# return(1-y**5 + x**5)*np.exp(-x**2-y**2)
C = plt.contour(X,Y,f(X,Y),8,colors='black')
plt.contourf(X,Y,f(X,Y),8,cmap=plt.cm.hot)
plt.clabel(C,inline=1,fontsize=10)
plt.colorbar()
plt.show()