填满

填充两条曲线之间的区域。

import matplotlib.pyplot as plt
import numpy as np

x = np.arange(-5, 5, 0.01)
y1 = -5*x*x + x + 10
y2 = 5*x*x + x

fig, ax = plt.subplots()
ax.plot(x, y1, x, y2, color='black')
ax.fill_between(x, y1, y2, where=(y2 > y1), facecolor='yellow', alpha=0.5)
ax.fill_between(x, y1, y2, where=(y2 <= y1), facecolor='red', alpha=0.5)
ax.set_title('Fill Between')

plt.show()

---

工具书类

以下函数、方法、类和模块的使用如本例所示：

import matplotlib
matplotlib.axes.Axes.fill_between

出：

<function Axes.fill_between at 0x7faa00dc7158>