# contour等高线绘制

```python
import numpy as np
import matplotlib.pyplot as plt


def height(x, y):
    return (1 - x / 2 + x ** 5 + y ** 3) * np.exp(-x ** 2 - y ** 2)


x = np.linspace(-3, 3, 300)
y = np.linspace(-3, 3, 300)
X, Y = np.meshgrid(x, y)
# 为等高线填充颜色 10表示按照高度分成10层
plt.contourf(X, Y, height(X, Y), 10, alpha=0.75, cmap=plt.cm.hot)
C = plt.contour(X, Y, height(X, Y), 10, colors='black')
# 绘制等高线标签
plt.clabel(C, inline=True, fontsize=10)
# 去掉坐标轴刻度
# plt.xticks(())
# plt.yticks(())
plt.show()
# 显示图片
```

![img](/files/-Lpsm_oYvVzpq9k5kuaO)


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