在Matplotlib中，有没有办法在两个从未接触的垂直函数之间进行着色？

fill_between(x, y1, y2, where=None, interpolate=False, **kwargs)

import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(0, 10, 100)
y1 = np.sin(x)
y2 = np.cos(x)

plt.plot(x, y1, label='sin(x)')
plt.plot(x, y2, label='cos(x)')
plt.fill_between(x, y1, y2, where=(y1 > y2), color='blue', alpha=0.3)
plt.fill_between(x, y1, y2, where=(y1 <= y2), color='red', alpha=0.3)

plt.legend()
plt.show()