如何填充matplotlib图的交点上方的区域

import matplotlib.pyplot as plt
import numpy as np

# 生成示例数据
x = np.linspace(0, 10, 100)
y1 = np.sin(x)
y2 = np.cos(x)

# 找到交点的索引
intersection_index = np.where(np.isclose(y1, y2))[0][0]

# 绘制曲线
plt.plot(x, y1, label='y = sin(x)')
plt.plot(x, y2, label='y = cos(x)')

# 填充交点上方的区域
plt.fill_between(x[intersection_index:], y1[intersection_index:], y2[intersection_index:], color='gray', alpha=0.5)

# 添加图例和标题
plt.legend()
plt.title('Intersection Area')

# 显示图形
plt.show()